It's a 08 Screamin Eagle Road King with the big 110 C. Harley-Davidson did not just make mass production motorcycles, but created bikes for a whole cultural sub-set of Americans. When the exhaust valve begins to open, stop and adjust that cylinder's intake rocker arm. The rocker box height is about the same as stock for a 113" ORCA but the inlet and exhaust ports are higher (conflict with FXR). Check out the biggest database of Harley Davidson reserve and replacement parts by OEM numbers. In total there are 117 users online :: 8 registered, 0 hidden and 109 guests (based on users active over the past 30 minutes) Most users ever online was 1007 on Sun Jun 17, 2012 7:16 pm. Shims should be installed on the non-thrust side of the arm (left side on intake, right side on exhaust). Applying a generous amount of assembly lube to the rocker arm ball, position it on the rocker stud with the flat side of the trunnion facing up. Inspect the rocker shafts. Ford F-150 Regular Cab 2010, Rocker Panel by Replace®. SERVICE MANUAL. Add this to the. If you raise the front wheels of your golf cart and spin each wheel individually, you can often detect bad bearings. The engine was released in 2007 and, according to. At the time I checked the pushrod adjustment and it was fine, but now, as I've opened the engine up I've found there's quite a lot of end play on the rocker arms and that is probably the cause of the noise I was getting. Notice the small hose running over the No2 header pipe above and again between No2 and No3 cylinder. pan-shaped rocker covers. I have Vortec heads with stock self aligning rocker arms. If the inspection of all these parts fails, the problem likely lies in the lifters. When you put the rockers back on, make sure the tappets are on base (valves closed) as you draw the shaft bolts tight. It was an exh rocker. You can also run OEM Evo rocker arms or Evo roller rocker arms in your Shovel by using special stepped spacers and get the specified lift listed for the Evo cam. You can see the marks in the hardened bolts from the hammering in the pic above. 2% similar) Any item returned must be received in the same condition as it was shipped to receive a refund. Ignition misfire. For instance, a 1. In order to find your part OEM number you first have to know the year build of your Harley Davidson bike then the exact name (please refer to the bikes service manual to find out exact bike name) at the end you need to know to which reserve part # list your OEM part (the one that you want to replace. While other bikes offer a fun ride, your Harley is the king of the road. Never mix them up, or you are done for. The other factor that contributed to the noise we heard was the excessive amount of endplay between the rocker arms and the rocker box. so that is what the poping sound was when the intake opened. The sale or use of these parts or accessories does not grant the purchaser a license or other right under any Harley-Davidson patent. Harley Benton HB-35Plus Metallic Blue. 035-inch endplay, and as far as the rest of the rocker arms we had almost the maximum allowable end play. 655 seconds, and Warren Johnson had the speed record of 181. Its combination of beige cotton-twill construction and three stripe sleeve trims is the perfect middle ground between wardrobe classic and up-to-date trend. Davidson, the man behind Harley-Davidson design since 1963, was also the driving force on the company's museum advisory board. The new heads were topped off by redesigned rocker covers which resembled upside-down roasting pans, prompting the nickname "Panhead. Got those loose rocker tickin’ blues? Tighten them up a bit with these shims. Others refer to it as Harley culture. I've always had top end noise. Hydraulic lifters allow the valve lift to increase with engine rpm by filling up with oil as the oil pressure rises. Motorcycle engine knocking noise at idle. 11-0523 Unbranded Three Rocker Arm Assembly For Harley Davidson Ironhead Sportster (34. I adjusted mine and never could get the noise out. Maintaining a slick black theme throughout, the engine’s polished. The valve train is designed so that there is no side thrust on the tappets or the rocker arms which causes undue wear on other engines. 1 of 1 found this answer helpful. 10, 60 month repayment term, and 4. Double-check to make sure that the pushrods are seated correctly in the lifters and the rocker arm seats. Harley Benton HB-35Plus Metallic Blue. Free shipping in the U. (this is the most annoying of the valve train noise, and is particularly noticeable between 2000-3000 RPM) Please note~Rocker Lockers will not quiet noisy lifters, noisy chains, gears, tensioners or bearings. Bob teaches you how to adjust the clutch and primary chain on your Harley Softail or Dyna model. 3 rocker ratio). Get free shipping, 4% cashback and 10% off select brands with a Gold Club membership, plus free everyday tech support on aftermarket Harley-Davidson Ironhead Sportster Engine Gaskets & Seals & motorcycle parts. S&S Forged Roller Rocker Arms for M8 Models: 900-1084: Reduced valve train noise from start up to. Remove the screws or bolts holding the rocker or cam cover to the cylinder head. The Softail swing-arm is designed to be stiff for dynamic handling and creates the look of a classic hardtail frame. My question is how do I determine how much noise is acceptable? When assembling the motor I set the valves twice just to make sure I had them right. It starts after about 2 miles of easy riding, and is most audible at approximately 20mph in second gear, 30mph in third, etc. The fix is to ream and bush the rocker arms, then turn and hard-chrome the shafts. CPP Replacement Rocker Panel RRP2787 for 1995-2005 Chevrolet Blazer. 2 Abnormal Sides whipped up a set of push rod collars and tank badges. Push the suspected valve rocker arm with your thumb to quiet the valve If the noise stops or changes significantly, you've found the problem valve. of the rocker arm. These lifters had the wire retainer on the plunger, while the replacement comp cams lifters had a snap ring. May 28, 2019 · Best oil for Harley-Davidson bikes. See what the common problems and fixes are with this Power Stroke in this month's issue of Diesel Power Magazine!. Bent Push Rods, Broken Rocker Arms, and Failed Valve Tips. The 1918 machines have longer crank case breather pipes than the former model?. The iconic “Knucklehead” — the overhead valve 61-cubic-inch V-twin introduced by Harley-Davidson in early 1936 — is a milestone motorcycle and one of the most important American bikes ever made. Allow about five minutes for the tappets to bleed down on that cylinder. There has been a tapping noise between 2200 and 3000 rpms since the install. Harley-Davidson has had a long and storied history since it was founded in 1903 by William Harley, Arthur Davidson and Walter Davidson. Harley Davidson 2009 Fat Bob "Dyna Guerilla" by Rough Crafts fuel tank and cap, rocker arm cover and quilted leather seat. Rocker Arm and Pushrod Clearancing by Scottdog V-Twin Engine Balancing Here is an interesting document I ran across on flywheel balancing. For example, a 2019 Harley-Davidson Street® 750 model in Vivid Black with sale price of $7,599, 10% down payment and amount financed of $6,839. Note the bearing cap on the left has a travel limit. Rocker lockers keep the shaft from rotating and hitting the inner rocker bolts. Since we made this video we have found a better way to cut the clearance for the. They are very good at absorbing shock. Harley Benton HB-35Plus Metallic Blue Vintage Series, semi-hollow electric guitar, maple body with arched maple top, mahogany sustain-block (entandrophragma cylindricum), maple set-neck, pau ferro fretboard, fretboard radius 305mm, block inlays, 22 frets, 628mm scale, 42mm nut width, 2x Roswell LAF. com which features a listing of painted part numbers, except CVO (Custom Vehicle Operations) models which are located in their own. The contact point on the valve stem should begin toward the intake side of the cylinder head with the valve closed. Shop the best Harley-Davidson Ironhead Sportster Engine Gaskets & Seals for your motorcycle at J&P Cycles. Our solution is to move the rocker arms out. For the grips and rocker arm covers Winston turned to Arlen Ness, and for the blinkers and taillight, Rizoma. 983″ and increased the bore from 3. In simple words, hydraulic valve lifter or lifter is something like a tiny cylinder that is connected to one end of the push arm or rocker arm, where it meets the valve. If you are looking to have the loudest Harley exhaust, take a look at Lowbrow's Shotgun Exhaust Pipes. The rear wheel and brake is a 1972 Harley with juice drum brakes. Now this was just slight wear, but it was off the side of the rocker arm. To accomplish this Harley-Davidson engineers decreased the engine’s stroke from 3. I've always had top end noise. The engine was released in 2007 and, according to. You must be an AMCA member to register. 2% similar) Any item returned must be received in the same condition as it was shipped to receive a refund. Using this exact process, install all the rocker arms. Livernois valvetrain components are made in the USA and include dyno tune proven cam profiles, valve spring kits, push rods, rocker arm braces, displacement on demand eliminator kits, cam phaser lock outs and cam phaser limiter kits. (this is the most annoying of the valve train noise, and is particularly noticeable between 2000-3000 RPM) Please note~Rocker Lockers will not quiet noisy lifters, noisy chains, gears, tensioners or bearings. The 2010 Harley-Davidson Softail Heritage Softail Classic is a Cruiser Style Motorcycle equipped with an 1584cc, Air Cooled, V Twin, OHV - Pushrod, 4-Stroke Engine and a 6-Speed Manual Transmission. If you raise the front wheels of your golf cart and spin each wheel individually, you can often detect bad bearings. (March) for an entire week of. The engine was released in 2007 and, according to. Simcoe County Cycle Inc. Stock Harley exhausts have baffles, which reduce the exhaust noise. I think the arm is the real star here. For over 50 years Arlen Ness has designed and manufactured industry leading performance parts for your motorcycle. The stylish blazer is completed with detachable tricolor arm trims. After diagnosing it you find engine misfire codes. We stock golf cart parts for E-Z-GO, Club Car, Yamaha, Columbia Par Car, Harley-Davidson, Garia, and many more brands! If it's still available, we can probably get it! With over 40 years of experience in golf cart repair, service, performance upgrades, and all around knowledge, Golf Car Catalog is an industry leader in golf cart parts. Monday I installed a set of Magnaflow Top Gun slip ons. Fort Wayne Speed Shop, Fort Wayne, Indiana. Two turns of the 10mm valve adjusting screw with 1mm threads will preload the lifter ~1. This video will also show you what the. 040" sum of the head decking and thinner gaskets to get. A rocker arm is highlighted above. The rocker shafts are allowed to side in & out, and rotate, hitting the bolts at high frequency & creating that awful tapping noise. A good and properly greaed front wheel bearing should be almost silent. Soft Colors A term used to describe wearing an M/C Member shirt. The sliding area of the rocker arms feature a DLC (diamond like coating) to reduce friction and wear. Remove the screws or bolts holding the rocker or cam cover to the cylinder head. When an accessory such as the water pump, alternator, power steering pump, serpentine belt, serpentine belt tensioner or idler pulley has failed it can make a rattling, squeaking or tapping noise. If the cap is damaged or fails, there is nothing keeping the needle. The introduction of large cam cores that support more lift at the lobe have eased back on the rocker arms to around 1. The problem is that the rocker arms or shafts are smacking against the hold down bolts and this happens only at certain RPMs. Using the old method of a probe in the ear and touching on various locations of the engine, I have located the problem to still be around the #1 and #3 rocker arm area, I also checked each pushrod as they were being taken out and kept them in their original order for reassembly, maybe the assembly lube on the sides of the lifters has caused this. Print a NADAguides window sticker for the 1981 Harley-Davidson FXWG WIDE GLIDE 80ci, Prices & Specs. The noise getting louder at warm up is probably normal rocker shaft noise. Depending on the miles, it can be a lot of things. When the cam raises the pushrod and moves the rocker arm down on the valves, it also sends the rocker arm away from the pressure of the pushrod. 6:1 compression ratio, billet oil pump, fully polished. Recommended applications: cams, gears, crankpins, piston wrist pins, oil pumps, valve guides, rocker arm and push rod tips and roller tappet wheels. The KicKee Gives Back Initiative is an outreach program dedicated to the support of families and children in need through fundraising, donation, and direct action. The rocker shafts are allowed to side in & out, and rotate, hitting the bolts at high frequency & creating that awful tapping noise. Check the face of the rocker arm where it pushes down on the valve stem for wear as well. Harley FLHTCUI 2002 twin cam knocking noise I have a hard knocking/rattling noise coming from the engine. 6" x 7" x 5". 5:1-ratio rocker arm will move the intake or exhaust valve 1. Since we made this video we have found a better way to cut the clearance for the. CPP Replacement Rocker Panel RRP2787 for 1995-2005 Chevrolet Blazer. 4 speed transmission with a rocker clutch and slap stick shift. A smattering of proprietary Rough Crafts parts add to the ‘Guerilla’ vibe—like the clutch cover, the handlebars, the finned air filter and the gas cap. You may need to pull the oil separator, not sure if it's in the way or not. as long as the noise doesnt change in volume, ur not too badbut if it starts to increase, i'd get the tappets looked at. It starts after about 2 miles of easy riding, and is most audible at approximately 20mph in second gear, 30mph in third, etc. From basic maintenance to troubleshooting to complete overhaul, Clymer manuals provide the information you need. Domenic: Yes, you can pull the heads and cylinders while the engine is in the frame. In some cases a simple adjustment will resolve much of the noise. The main cause of top end noise it the rotation of the rocker arm shaft hitting the bolt, this is because of the gap between the bolt and the shaft, this problem is fixed with the installation of Rocker Lockers. However, in other cases, it may actually be due to movement of the rocker arm *shafts* which, to the best of my knowledge, there are no means of correcting. For example, a 2019 Harley-Davidson Street® 750 model in Vivid Black with sale price of $7,599, 10% down payment and amount financed of $6,839. Replaced a gasket on one end of the exhaust flex hose section. the Milwaukee-Eight’s rocker arm. The rocker arms are different part numbers than what is in the BSA parts list Manual and no issues with that now that I know more about BSA part numbers. At DC V-Twin they have several Evolution Harley replacement engines. Never mix them up, or you are done for. Recommended applications: cams, gears, crankpins, piston wrist pins, oil pumps, valve guides, rocker arm and push rod tips and roller tappet wheels. 02 shim, using a stationary benchtop sander with different grits of paper. Harley-Davidson. 95 TP Engineering Pro-Series Roller Rocker Arms for All 1984-2016 Harley. In the video where I'm rocking the rocker arm back and forth, you will notice the vertices end piece (for a better word) going in and out of the rocker arm. You're hearing rocker arm noise and yes some is normal. Rocker Arm and Pushrod Clearancing by Scottdog V-Twin Engine Balancing Here is an interesting document I ran across on flywheel balancing. My bike was running when I bought it and tore it down. Clean the pushrods with a spray of carb cleaner. And high lift often causes the rocker arms to contact the rocker box tops, especially on 03 and earlier motors. 966 overhaul. Tech Tip Ted video will show you before and after of the Rocker Locker install on a Harley-Davidson Twin Cam engine. , INC, ALL RIGHTS RESERVED. If your car has pushrods rather than an overhead camshaft, then oil is forced under pressure into the valve lifters. 99 up to $10. Batwing Fairing for Harley Davidson Roadking XE Non Audio Glovebox: Home Audio & Theater. Oil pressure failures are usually at the root of lifter tapping, also known as lifter collapse. Harley-Davidson deliberately went for the “retro” appeal of their motorcycles and created motorbikes around the retro-looking Shovelhead engine that looked and sounded like the Harleys of old. Double-check to make sure that the pushrods are seated correctly in the lifters and the rocker arm seats. There has been a tapping noise between 2200 and 3000 rpms since the install. 785 lift cams, and 7500rpm, for miles at a time, over and over, and. If the noise lasts for more than a minute and completely disappears or dimishes after the engine is warm, the most likely cause is an exhaust manifold leak. In the video where I'm rocking the rocker arm back and forth, you will notice the vertices end piece (for a better word) going in and out of the rocker arm. You *could* have a weak lifter, or worn rocker bushings, but if it's a faint noise, then I wouldn't sweat it. Unless it is excessive or gets worse it's probably just rocker arm noise. These are self-adjusting lifters, meaning there is no rocker arm adjustment. Now this was just slight wear, but it was off the side of the rocker arm. The tapping noise is noticeably louder now. Save on Pit Bull Rocker Uber XOR Tires for your ATV, UTV or Side By Side plus FREE SHIPPING! Our staff is ready to help you with your purchase. Two increased rocker arm ratios that come to mind are a milder Ultima 1. For over 50 years Arlen Ness has designed and manufactured industry leading performance parts for your motorcycle. If you're having a hard time understanding this concept, just consider this: Every year, hundreds of thousands of Harley-Davidson enthusiasts converge on towns like Sturgis, S. I could be the bushings in the rocker arms and the rocker arm shafts. We carry parts, accessories, riding gear. Eventually (usually over 50k miles), parts begin to wear. For the grips and rocker arm covers Winston turned to Arlen Ness, and for the blinkers and taillight, Rizoma. And draw them down evenly by hand. Shims should be installed on the non-thrust side of the arm (left side on intake, right side on exhaust). by Harley Riders Have you tried changing cams, replacing lifters, adjusting pushrods, different oils and still have that annoying ticking? Try the Rocker Lockers, they will eliminate the ticking from the rocker arm shafts. The benefits to adding roller rocker arms is not hard to grasp. And, there's something else, too -- the aura of Harley-Davidson. It also went with a wider, longer swing arm. 6" x 7" x 5". 5:1-ratio rocker arm will move the intake or exhaust valve 1. Piston slap, rod clatter, compensator, tappets or something else in the cam chest, rocker shaft clatter. long life performance More details Type motorcycle rocker Brand GOOD Material cast iron, aluminium Quality Grade A Certification ISO9001:2002 MOQ 500sets OEM ok Packing one set per box, and then carton or as you request Delivery time. Perfect for adding a pop of color to any formal look, this blazer is a fantastic modern twist on a wardrobe classic. Loosen the nut on the rocker arm SLOWLY until the tick is evident and then tighten SLOWLY until it goes away and then 1/2 to a full turn more. Loosen both screw adjusters, put the right sized feeler gauges in each tappet and then adjust both at the same time. By simply setting the adjuster to zero lash on the loose valve, the wear factor is compensated and the valve train moves like new again. Highway Bar Kit with Cats Paw Footpeg fits Harley-Davidson. A bad rocker bushing, collapsed valve spring etc are pretty much not gonna sound that way. AR Harley rear swing arm, BDL 3" Belt drive Side Mount Maltese Cross LED rear light/licence plate holder Frisco mounted 2. Looking at this photo, you’ll notice that the arms have “water slides” leading from the pressurized oiling exit hole above the shaft, to the tip, above the valve stem. After years and miles, wear occurs that allows the flats to rotate back and forth a little, causing a lot of noise. If you're going as far as taking the heads apart, email (paulhm68[at]yahoo) your address, and I'll throw some brandy-new rocker arm shafts your direction. Dual spark plugs for each cylinder contribute to more-efficient combustion. I’m interested in running Edelbrock heads on my SBC, can I use self-aligning rocker arms? The heads are designed to use non-self-aligning rocker arm. An adjustment enables the rocker arm to be set so that it will be ground to the right shape. Now this was just slight wear, but it was off the side of the rocker arm. Remove all the plugs with a plug spanner. In 2002 an all new Harley model was introduced, the VRSCA V-Rod. Alignment of the rocker arm is extremely important – any deviation from the correct contact point of the valve stem can cause accelerated wear at best and component failure at worst. Removed the rocker arm and ran it again - obviously was running rough on 5 cylinders, but no untoward noise when revving the motor up. There has been a tapping noise between 2200 and 3000 rpms since the install. With more than 150 injection molded parts. If you have one rocker arm, operating two valves, with two screw adjusters, you will get a more accurate adjustment if you use two feeler gauges. CPP Replacement Rocker Panel RRP2787 for 1995-2005 Chevrolet Blazer. 655 seconds, and Warren Johnson had the speed record of 181. “The rocker covers look like skin stretched taut over muscle, like the rocker arms are about to burst out of the engine,” said Richards. Read More. A failed roller axle can make a similar noise right up 'till it breaks and destroys a whole bunch 'o stuff. Simply divide the. 02 shim, using a stationary benchtop sander with different grits of paper. My research discovered that the noise is caused by the factory's sloppy fit between the rocker shafts and the hold down bolts meant to keep them in place. Passport Photo Creator app is the only way to get real-time compliance alerts to create a perfect passport photo. Harley Davidson Twin Cam 103 Ticking Sound | Fix My Hog Noise sound more like the rocker shaft rotating in the support plate than a loose rocker arm but hard to distinguish between the two. Under the old arrangement when the rider neglected to oil the rocker-arm bearing the dry bearing was naturally prone to make the motor a trifle noisy, but with the new lubricating provision this possibility will be eliminated. The benefits to adding roller rocker arms is not hard to grasp. 5" rotors, 280/35x18 Metzler rear tire, 120/70H21 front. We stock golf cart parts for E-Z-GO, Club Car, Yamaha, Columbia Par Car, Harley-Davidson, Garia, and many more brands! If it's still available, we can probably get it! With over 40 years of experience in golf cart repair, service, performance upgrades, and all around knowledge, Golf Car Catalog is an industry leader in golf cart parts. These replacement engines fit 1984-1999 big twin chassis which came with Evolution style engine mounts. Next, install the rocker arms. RAM 1500 EXPRESS 4X4 WITH A BIGGER, MORE SPACIOUS CREW CAB. The tighten 1 1/2 more turns. 99 ADJUSTABLE GUIDE PLATES, SB CHEVROLET w/ 5/16", UNIVERSAL SBC $27. You can also run OEM Evo rocker arms or Evo roller rocker arms in your Shovel by using special stepped spacers and get the specified lift listed for the Evo cam. The Wilson-Benesch Circle 25 turntable and A. If the noise lasts for more than a minute and completely disappears or dimishes after the engine is warm, the most likely cause is an exhaust manifold leak. Remove the screws or bolts holding the rocker or cam cover to the cylinder head. That will cause the engine to get less fuel & have a shorter exhaust expulsion. New Melling rocker arms should always be part of a new valve train build. A rocker arm’s ratio refers to the amount of movement that is transferred to the valve side of the rocker arm in comparison to the pushrod side. I started taking video with my iPhone each time I start. 020" of additional stem protrusion by the 1. A rocker arm is highlighted above. The best online destination and local store solution for all of your Truck and Jeep off-roading needs!. Go to section Business Watch. Scientists say the cells grew larger and sprouted arm-like appendages. high quality with competitive price 3. How long have you run it since replacing the lifters? Did the noise just randomly show up or was there something done to the bike and then it started tapping?. Rocker Box: The shovel design contains the rocker arms and shafts in the Rocker box and can be removed along with the head from the engine, where as the Evo design requires removal of the 3 piece rocker box and rocker arms to gain access to the headbolts for head removal. An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. It starts after about 2 miles of easy riding, and is most audible at approximately 20mph in second gear, 30mph in third, etc. so that is what the poping sound was when the intake opened. 11-0523 Unbranded Three Rocker Arm Assembly For Harley Davidson Ironhead Sportster (34. Piston slap, rod clatter, compensator, tappets or something else in the cam chest, rocker shaft clatter. Harley-Davidson says the new engine platform provides faster throttle response, more torque, better sound, improved fuel economy and a smoother ride. 020" of additional stem protrusion by the 1. 2nd, have a look at the bushings inside the rocker arms, ive seen them get oval shaped and cause issue before. Ford F-150 Regular Cab 2010, Rocker Panel by Replace®. Make sure your front pipe flange is not loose either, cause sometimes exhaust leaks can make some funky noises as well. This is the standard fix that Harley dealerships will give you unless you want to go with the gear driven system and cams, which is again our first suggestion depending on you budget of. Screamin’ Eagle Assembly Lube. 5 (1 1/2) times the amount of lift delivered by the camshaft. The thin film of this high heat Loctite should do well enough to hold the end of the shafts in place and stop that clattering noise. 95 TP Engineering Pro-Series Roller Rocker Arms for All 1984-2016 Harley. 95) and we also decided to throw in a set of the tappets as well (part # 18572-13, $249. I have a 2010 SGT with a 103 c. Dream Machines Of Texas 1974 Harley-Davidson FLH - 1200 Shovelhead Managers Spec. Although it is true that no harm is being done by this ticking noise, it is highly aggravating. I have a 2012 Harley Electra Glide Ultra limited with the 103 motor. good abrasion resistance 2. And, To narrow down the issue you do a compression tes t or cylinder leak down test. Very rare Low miles Buell XBSX9 LIGHTNING harley motor cash only face to face or trade for a razor 170 youth version. The factory specifications called for. , Barrie, Ontario. I have Vortec heads with stock self aligning rocker arms. As the spark plugs, ignition cables, distributor cap and rotor, and ignition coil wear over time, their ability to transfer the needed spark to ignite the air-fuel mixture inside the combustion chambers becomes compromised. Make sure your front pipe flange is not loose either, cause sometimes exhaust leaks can make some funky noises as well. Application: It is commonly used in most conventional engines. The rocker arms are different part numbers than what is in the BSA parts list Manual and no issues with that now that I know more about BSA part numbers. Quality Motorcycle Parts From California Craftsmen 1970-2020. The symptoms I experienced were as follows:--Runs great at. First thing to do, is really lock down where the noise is. loose rocker arm. that translates to the rocker arm hitting the top of the rocker cover on the inside. An adjustment enables the rocker arm to be set so that it will be ground to the right shape. Bob teaches you how to adjust the clutch and primary chain on your Harley Softail or Dyna model. Depending on the miles, it can be a lot of things. 5 out of 5 stars (30) 30 product ratings - Ultima Roller Rocker Arms Harley Twin Cam, Sportster, EVO Big Twins 1986-17. I've always had top end noise. Try the Rocker Lockers, they will eliminate the ticking from the rocker arm shaft. (this is the most annoying of the valve train noise, and is particularly noticeable between 2000-3000 RPM) Please note~ Rocker Lockers will not quiet noisy lifters, noisy chains, gears, tensioners or bearings. 8 Gal sportster style gas tank with flush mount gas cap with repositioned fuel tap. The rocker arm assembly of claim 8, wherein the second guide is made of aluminum. Applying a generous amount of assembly lube to the rocker arm ball, position it on the rocker stud with the flat side of the trunnion facing up. Harley’s four valve head has two rocker arms that control two valves each. Bob teaches you how to adjust the clutch and primary chain on your Harley Softail or Dyna model. Fort Wayne Speed Shop is Northeast Indiana’s premier Harley Davidson performance, service, repair, dyno. 000 miles New cam chain tensioners got bike back it blowing oil out of intake lots of oil charts. Allow about five minutes for the tappets to bleed down on that cylinder. (this is the most annoying of the valve train noise, and is particularly noticeable between 2000-3000 RPM) Please note~ Rocker Lockers will not quiet noisy lifters, noisy chains, gears, tensioners or bearings. The shaft that slides thru the rocker arms is stabilized at the end by a flat that allows the bolt to slide past, but keeps the shaft from moving in an arc. These lifters also pump oil up through the hollow push rods to lubricate the rocker arm area. Free shipping in the U. Another problem with the rocker arm assembly is the excessive end play of the rocker arm between the towers. We've subjected these rockers to some extreme abuse in our Bonneville motors, with spring pressures north of 270lbs on the seat,. Go to section Business Watch. 5mm (remember the 1:1. In 2009, it did away with the stamped and welded single-piece frame that anchored Harley touring motorcycles for the last 30 years and replaced it with a cast, single-spar, rigid-backbone frame. (this is the most annoying of the valve train noise, and is particularly noticeable between 2000-3000 RPM) Please note~Rocker Lockers will not quiet noisy lifters, noisy chains, gears, tensioners or bearings. Technical Discussions Harley-Davidson; Pan Heads; NOTICE: New member email requirements now in effect. 8 bolts in the lowers. I’d like to hear it on other ‘tables to really find it what it can do. Failing spark plugs can result in the engine to become rougher and produce vibrations when left at idle speeds. That will cause the engine to get less fuel & have a shorter exhaust expulsion. The oil inside pushes the rocker arms further away from the camshaft, which causes the valves to open further. The contact point on the valve stem should begin toward the intake side of the cylinder head with the valve closed. There has been a tapping noise between 2200 and 3000 rpms since the install. Oil lines were internalized and hydraulic valve lifters adopted, an innovation that greatly reduced tappet noise and simplified maintenance. Each Softail model represents a distinct branch of the factory-custom tree; the nostalgia of the FLSTN. The noise is often heard coming from the camshaft (center of the engine). Take a look at the top photo, The No 1 cyl has the oil filter in front of it. 020" of additional stem protrusion by the 1. Features and benefits include: Square motor configuration (equal bore and stroke) produces excellent torque, greatly increases engine life, and reduces mechanical engine noise. (May) and Daytona Beach, Fla. 2″ bringing the engine in just under the 750cc maximum. From basic maintenance to troubleshooting to complete overhaul, Clymer manuals provide the information you need. Notice the small hose running over the No2 header pipe above and again between No2 and No3 cylinder. Unless it is excessive or gets worse it's probably just rocker arm noise. This Harley video is a good illustration of what could be happening. Locks the Rocker Arm Shafts in place 2. I'm assuming you got a more aggressive cam so that means you have a shorter distance between the cam and the rocker arm. Who is online. A quick steady tap may indicate lifters or cam lobe, while a clatter may be loose/worn rocker arms. Harley-Davidson has had a long and storied history since it was founded in 1903 by William Harley, Arthur Davidson and Walter Davidson. A good and properly greaed front wheel bearing should be almost silent. Harley-Davidson says the new engine platform provides faster throttle response, more torque, better sound, improved fuel economy and a smoother ride. 5:1-ratio rocker arm will move the intake or exhaust valve 1. Now for the most overlooked part of this assembly and probably ninety percent of the problem of noise, the rocker arm end play. Please note~ Rocker Lockers will not quiet noisy lifters, noisy chains, gears, tensioners or bearings. Harley-Davidson. Try the Rocker Lockers, they will eliminate the ticking from the rocker arm shaft. When the exhaust valve begins to open, stop and adjust that cylinder's intake rocker arm. Get discount prices, fast shipping and ultimate product help when shopping for 2003 Ford F-150 Harley-Davidson Edition Parts at 4 Wheel Parts. From basic maintenance to troubleshooting to complete overhaul, Clymer manuals provide the information you need. Before partially tearing down the engine and replacing lifters, take a few other steps to quiet. Scientists say the cells grew larger and sprouted arm-like appendages. TDC the cyl you want to adjust (COLD) take the lash out, go to ZERO, then 1/4 turn of the nut then tighten it. A locking screw is located at the connection to the rocker arm which can increase or decrease the amount of lift that the tappet allows from the camshaft, thus making the amount of valve lift. I have applied these techniques to my own motor with great success. It broke on the push rod side. The factory rocker arm is on the left, and the upgraded arm on the right. high quality with competitive price 3. Use a broom handle to listen. Domenic: Yes, you can pull the heads and cylinders while the engine is in the frame. In two rocker arm locations we had over. Bin please note, I will not accept returns or issue refunds for items listed as sold parts, is, working examine all photographs closely before your. I have this noise coming from the rocker box that sounds like tappets-but it isn't. There has been a tapping noise between 2200 and 3000 rpms since the install. A failed roller axle can make a similar noise right up 'till it breaks and destroys a whole bunch 'o stuff. by Harley Riders Have you tried changing cams, replacing lifters, adjusting pushrods, different oils and still have that annoying ticking? Try the Rocker Lockers, they will eliminate the ticking from the rocker arm shafts. 2) Except for immediately after a complete engine rebuild, there is always residual oil in the front rocker box to provide start-up lubrication. That will cause the engine to get less fuel & have a shorter exhaust expulsion. A rocker arm’s ratio refers to the amount of movement that is transferred to the valve side of the rocker arm in comparison to the pushrod side. A good and properly greaed front wheel bearing should be almost silent. Rocker Arm Kits. We got the roller rocker arms from Screamin’ Eagle (part # 17378-98, $469. When the push rod goes down and the springs push the valves shut, the. - The four-valve cylinder head design incorporates a roller rocker arm for a more compact layout along with reduced friction. Ignition misfire. Rocker Arm and Pushrod Clearancing by Scottdog V-Twin Engine Balancing Here is an interesting document I ran across on flywheel balancing. The other factor that contributed to the noise we heard was the excessive amount of endplay between the rocker arms and the rocker box. Unless it is excessive or gets worse it's probably just rocker arm noise. 49% APR results in monthly payments of $127. I have heard that the XE cams make a lot of valve train noise. CPP Replacement Rocker Panel RRP2787 for 1995-2005 Chevrolet Blazer. Harley-Davidson deliberately went for the “retro” appeal of their motorcycles and created motorbikes around the retro-looking Shovelhead engine that looked and sounded like the Harleys of old. I have this noise coming from the rocker box that sounds like tappets-but it isn't. 2% similar) Any item returned must be received in the same condition as it was shipped to receive a refund. Another problem with the rocker arm assembly is the excessive end play of the rocker arm between the towers. S&S motor 31-9891 is for 1986-2003 Harley-Davidson Sportster models. Try the Rocker Lockers, they will eliminate the ticking from the rocker arm shaft. It also went with a wider, longer swing arm. 625 for stock HD rocker arms. • The kit includes an improved Screamin' Eagle ® High-Flow Oil Pump that provides increased oil pressure at high-operating temperatures • This kit increases the oil supply by 23% and scavenging by 50% when compared to the '99-'05 Original Equipment oil pump, and reduces operating temperature of bearings to improve bearing life Harley-Davidson "Bobbstr" Series Softail Chin Spoiler 2000. The rocker arm is an extremely important component in the operation of an internal combustion engine because it is responsible for translating the profile of the camshaft into motion for opening and closing the intake and exhaust valves. After diagnosing it you find engine misfire codes. V-Twin Rocker Clutch: Ram - Jett Rocker Adjuster 1 2 National Cycle Windshields 1 2: Andrews close ratio gears 1 2: Spark Plugs: Shovelhead Crankcase: Tire Comparison Size Chart: Fork Tube Info: How to wrench your 74 tranny: More than you want to know about pipes: DIY Spark Plug Thread Repair. This gap allows the shaft to rotate and hit the bolt causing a tick. At the time I checked the pushrod adjustment and it was fine, but now, as I've opened the engine up I've found there's quite a lot of end play on the rocker arms and that is probably the cause of the noise I was getting. The noise is often heard coming from the camshaft (center of the engine). are 1950 pan head cases The top end is a 1966 shovel head (74 in. Other improvements include a 50 percent increase in charging output for powering accessories, slimmer primary and air cleaner covers for more legroom, and—always important on Motor Company machines—enhanced curb appeal. All designed and engineered by Livernois Motorsports for late model perfromance trucks, cars and SUV's. (August), Myrtle Beach, S. Designed by riders for riders. They use 3/4" long bushings instead of the 1/2" bushings found in other rocker arms. rocker arm supports move the pushrods away, thus eliminating the normal rubbing contact points between the pushrod tube and the pushrod. A rocker arm’s ratio refers to the amount of movement that is transferred to the valve side of the rocker arm in comparison to the pushrod side. RAM 1500 EXPRESS 4X4 WITH A BIGGER, MORE SPACIOUS CREW CAB. Inspect the rocker shafts. Get discount prices, fast shipping and ultimate product help when shopping for 2003 Ford F-150 Harley-Davidson Edition Parts at 4 Wheel Parts. The factory specifications called for. It has been expanded to include more history of the Shovelhead years as well as other features to help spread the word of the best HD's on the road. This prevents side loading of the valve stem. Valve adjustment pads sit under the rocker arm. Clean the pushrods with a spray of carb cleaner. Unless it is excessive or gets worse it's probably just rocker arm noise. While other bikes offer a fun ride, your Harley is the king of the road. I have this noise coming from the rocker box that sounds like tappets-but it isn't. Specs Owners' reviews Bikes for sale For sale. It has about 7500 miles on it now but when it got to about 6000 miles it started making a loud clattering sound on startup after it had set for a while and the motor had cooled down. Centers the Inner Rocker Cover 3. It has always gone away quickly. 2) Except for immediately after a complete engine rebuild, there is always residual oil in the front rocker box to provide start-up lubrication. A rocker arm is highlighted above. Get discount prices, fast shipping and ultimate product help when shopping for 2003 Ford F-150 Harley-Davidson Edition Parts at 4 Wheel Parts. Take a look at the top photo, The No 1 cyl has the oil filter in front of it. 4 speed transmission with a rocker clutch and slap stick shift. It's also a tapping noise. 50 Rocker Arm Stud & Guideplate Kit, SB Ford, 3/8" Studs, 5/16" Guide Plates $34. The closer you get the rocker arm to push the valves simultaneous, the less noise you will have. Yes 72 rocker arms and I thought you may be interested to know that there are around 1350 individual parts to assemble the top ends. "DUET SOOTHE" swing and rocker Fisher Price Baby Swing With Music And White Noise $20 Harley Davidson Dyna rear swing arm and brake $125. I noticed that the rocker arm which I took out of a 1972 motor was different to the broken one, which I suspect was from a 1970 motor, but I cannot see the rocker arm being the cause of the clattering. Piston slap, rod clatter, compensator, tappets or something else in the cam chest, rocker shaft clatter. If the cap is damaged or fails, there is nothing keeping the needle. Putting it all in perspective, at the end of 1982 when NHRA first mandated the 500ci engines, the late Lee Sheperd had the quickest E. My question is how do I determine how much noise is acceptable? When assembling the motor I set the valves twice just to make sure I had them right. I have this noise coming from the rocker box that sounds like tappets-but it isn't. Shovelhead Head Gasket Replacement. Harley-Davidson Knucklehead. If you're going as far as taking the heads apart, email (paulhm68[at]yahoo) your address, and I'll throw some brandy-new rocker arm shafts your direction. On 132/139" ORCAS you best plan on a 1" taller engine in so far as frames go when you get to the rocker box covers. When you sit on the bike you can look down and see more of this engine. They are straight drag pipes with no baffles. This is about half the distance that the piston inside the lifter can travel. Loosen the nut on the rocker arm SLOWLY until the tick is evident and then tighten SLOWLY until it goes away and then 1/2 to a full turn more. The benefits to adding roller rocker arms is not hard to grasp. I guess it could be rocker arm noise too, but the noise is more noticeable on the right side, where the lifters are. Expert repairs, tires, oil & filter not to mention major customization. V-Twin Rocker Clutch: Ram - Jett Rocker Adjuster 1 2 National Cycle Windshields 1 2: Andrews close ratio gears 1 2: Spark Plugs: Shovelhead Crankcase: Tire Comparison Size Chart: Fork Tube Info: How to wrench your 74 tranny: More than you want to know about pipes: DIY Spark Plug Thread Repair. The KicKee Gives Back Initiative is an outreach program dedicated to the support of families and children in need through fundraising, donation, and direct action. Harley says the new engine’s reduced mechanical noise allows the exhaust note to take on richer tone. Harley engineers updated the Knuck's upper-end with aluminum heads which reduced operating temperatures, and added hydraulic valve lifters which reduced engine noise. The Wilson-Benesch Circle 25 turntable and A. Frisösen-Harley (bzw. 040" sum of the head decking and thinner gaskets to get. Before I tore my 76 shovel apart, there was an annoying ticking noise when riding. Don`t reuse the lifters. That engine, based on the Harley-Davidson Sportster XLR, featured the four camshaft design originally created by Bill Harley back in 1929. „Friseusen-Harley“) - liebevoll für die Yamaha-Modelle Virago 125, 250 und 535 (siehe auch Eiserne Jungfrau) Fuel-to-Noise-Converter - Harleys mit ausgeräumtem Auspuff; Fuhre - schwerfälliges, unhandliches Motorrad, sei es ab Werk oder durch hohe Zuladung. For example, a 2019 Harley-Davidson Street® 750 model in Vivid Black with sale price of $7,599, 10% down payment and amount financed of $6,839. Inspect the rocker shafts. Failing spark plugs can result in the engine to become rougher and produce vibrations when left at idle speeds. 625 rocker ratio, which gives you. FX32 Rock arm surge 2610D rear axel PTO Noise FX195 lift arms wont raise up rockshaft Bush hog for YM 1500D rockshaft Jpaanese Yanmar Tractor parts cooling system Front crank pulley Purchas for parts yanmar loses power yanmar 2000 slow starter YM 1100 YM2210D Hydraulic stopped ,clutch noise YM1601D Turf Tire Question 60" yanmar YSS-60 3pt snow. are 1950 pan head cases The top end is a 1966 shovel head (74 in. If you have one rocker arm, operating two valves, with two screw adjusters, you will get a more accurate adjustment if you use two feeler gauges. With answers like this it is a wonder anyone would make a second post. The oil inside pushes the rocker arms further away from the camshaft, which causes the valves to open further. Maximum power went up to 50bhp in the 74cu in FL model, but the main advantage of the many improvements was greater reliability. 23 Zodiac Radium 250 Basic Swingarm Kit (396050). The best online destination and local store solution for all of your Truck and Jeep off-roading needs!. Owners that ride. 020" of additional stem protrusion by the 1. Clear external parts allow a clear view of all key internal parts The mechanical operation of the real engine is demonstrated with working crankshaft, pistons, valves, rods, rocker arms, and camshafts An electric drive motor is. Poor oiling will cause these to wear out. The rocker arm assembly of claim 8, wherein the second guide is made of aluminum. Harley-Davidson says the new engine platform provides faster throttle response, more torque, better sound, improved fuel economy and a smoother ride. I have a 2010 SGT with a 103 c. The rocker arm shafts have a notch in them that the bolt is supposed to butt up against, locking the rocker arm shafts in place. Welp, about half the time on starting, I get the lifter noise for the first second or so. - A shim-type valve adjustment system allows incorporation of a lighter rocker arm setup that, in turn, allows for a lower valve-spring load to further reduce power losses through engine friction. 655 seconds, and Warren Johnson had the speed record of 181. When the cam raises the pushrod and moves the rocker arm down on the valves, it also sends the rocker arm away from the pressure of the pushrod. 035-inch endplay, and as far as the rest of the rocker arms we had almost the maximum allowable end play. A rocker arm’s ratio refers to the amount of movement that is transferred to the valve side of the rocker arm in comparison to the pushrod side. My first reaction is to check the adjustable pushrod again. Add this to the. Hydraulic lifters are still being used in the valvetrain, with each pushrod operating a forked rocker. When it comes to interchanging cylinder heads, the most important issue is chamber size and its effect on compression. Kawasaki KLF300 2WD and KLF300 4WD manual. Customer Rides Customer Rides AMC Customer Rides Buick Customer Rides Cadillac Customer Rides Chevy Customer Rides Chrysler Customer Rides Desoto Customer Rides Dodge Customer Rides Edsel Customer Rides Ford Customer Rides Harley Customer Rides Hudson Customer Rides Kaiser Customer Rides LaSalle Customer Rides Lincoln Customer Rides Mercury. The cooling fins radiate noise, so you'll need to touch the motor to narrow the location down. Fake Shemp: Indie rocker Johnny Goth stood in for Jared Leto in Birds of Prey, in the flashback where he and Harley torture and tattoo the big mafia thug Harley later bumps back into. 5:1-ratio rocker arm will move the intake or exhaust valve 1. AR Harley rear swing arm, BDL 3" Belt drive Side Mount Maltese Cross LED rear light/licence plate holder Frisco mounted 2. An ignition system problem is one of the most common reasons for an engine to misfire. Expert repairs, tires, oil & filter not to mention major customization. When they had it apart Itold them to put in a set of roller rockers. Oil pressure failures are usually at the root of lifter tapping, also known as lifter collapse. It took me a while to get used to, just listen to some other bikes. FX32 Rock arm surge 2610D rear axel PTO Noise FX195 lift arms wont raise up rockshaft Bush hog for YM 1500D rockshaft Jpaanese Yanmar Tractor parts cooling system Front crank pulley Purchas for parts yanmar loses power yanmar 2000 slow starter YM 1100 YM2210D Hydraulic stopped ,clutch noise YM1601D Turf Tire Question 60" yanmar YSS-60 3pt snow. Remove rocker arms and the hold down bolts. By simply setting the adjuster to zero lash on the loose valve, the wear factor is compensated and the valve train moves like new again. Notice the small hose running over the No2 header pipe above and again between No2 and No3 cylinder. Ricks Motorcycles Trick & Roll 300 Fat Ass with jack shaft system - Fits Harley Davidson Rocker C Motorcycles From $6,223. Exhaust ports are also raised. A locking screw is located at the connection to the rocker arm which can increase or decrease the amount of lift that the tappet allows from the camshaft, thus making the amount of valve lift. Then it's the covers and the rocker arms, followed by the lowers. 625 rocker ratio, which gives you. Valve adjustment pads sit under the rocker arm. Harley Benton HB-35Plus Metallic Blue Vintage Series, semi-hollow electric guitar, maple body with arched maple top, mahogany sustain-block (entandrophragma cylindricum), maple set-neck, pau ferro fretboard, fretboard radius 305mm, block inlays, 22 frets, 628mm scale, 42mm nut width, 2x Roswell LAF. With the plugs out, there is no compression in the cylinders, so you can turn the engine easily. Using this exact process, install all the rocker arms. 02 shim, using a stationary benchtop sander with different grits of paper. The shaft that slides thru the rocker arms is stabilized at the end by a flat that allows the bolt to slide past, but keeps the shaft from moving in an arc. Removed the rocker arm and ran it again - obviously was running rough on 5 cylinders, but no untoward noise when revving the motor up. The steel frame is optimised for stiffness and light weight. I’d like to hear it on other ‘tables to really find it what it can do. Rocker Arm and Pushrod Clearancing by Scottdog V-Twin Engine Balancing Here is an interesting document I ran across on flywheel balancing. You're hearing rocker arm noise and yes some is normal. All a matter of having the rocker arm moving the 2 valves simultaneously. The other factor that contributed to the noise we heard was the excessive amount of endplay between the rocker arms and the rocker box. Before partially tearing down the engine and replacing lifters, take a few other steps to quiet. Use a broom handle to listen. Rocker lockers keep the shaft from rotating and hitting the inner rocker bolts. Source This so-called lifter is supposed to quieten the noise from the engine while improving the performance and long healthy life of the same. Check out the 6. Title in hand. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion chamber in the engine block. S&S motor 31-9891 is for 1986-2003 Harley-Davidson Sportster models. Click the register link on the top right to proceed. 49% APR results in monthly payments of $127. However, in other cases, it may actually be due to movement of the rocker arm *shafts* which, to the best of my knowledge, there are no means of correcting. The noise - Harley Davidson 2002 FLHTCUI Electra Glide question Have installed the brass bushings on the rocker arms, but that did not help. 25 tone arm was a revolutionary product when introduced and all these years later it remains a unique design. This type of noise is usually caused by malfunctioning valve lifters or an exhaust manifold leak. Monday I installed a set of Magnaflow Top Gun slip ons. rocker studs, guide plates and pushrods, sb ford 302 $48. It was a broken rocker arm, the push rod is fine, I dont know what made it break. Simply divide the. If your hydraulic lifter fails and is not repaired in time, it could cause a domino effect of engine issues. Scientists say the cells grew larger and sprouted arm-like appendages. Some noise can come from a worn camshaft. Please note~ Rocker Lockers will not quiet noisy lifters, noisy chains, gears, tensioners or bearings. This much noise could only be from too much lash (weak lifter?) or interference (rocker arm to rocker box?) with some other component in the top end. Don`t reuse the lifters. 020" of additional stem protrusion by the 1. Black powder-coated heads and cylinders are highlighted by machined cooling fin tips and polished rocker covers. In two rocker arm locations we had over. Yes 72 rocker arms and I thought you may be interested to know that there are around 1350 individual parts to assemble the top ends. I started taking video with my iPhone each time I start. KEMIMOTO is your one-stop shop for UTV, ATV, motorcycle. RB Racing has special exhaust systems for the 4 bolt exhaust ports. Others refer to it as Harley culture. The factory specifications called for. Hydraulic lifters are still being used in the valvetrain, with each pushrod operating a forked rocker. In two rocker arm locations we had over. Find Used Harley-davidson Shovelhead For Sale (with Photos). Lift the tank enough to remove the rocker covers. Harley-Davidson has also been working hard to improve the riding quality of its touring bikes. My 289 has the XE-274 comp cams with roller rockers. Rocker Box: The shovel design contains the rocker arms and shafts in the Rocker box and can be removed along with the head from the engine, where as the Evo design requires removal of the 3 piece rocker box and rocker arms to gain access to the headbolts for head removal. You can see the marks in the hardened bolts from the hammering in the pic above. Check out the 6. Harley-Davidson has had a long and storied history since it was founded in 1903 by William Harley, Arthur Davidson and Walter Davidson. The problem is that the rocker arms or shafts are smacking against the hold down bolts and this happens only at certain RPMs. For example, bent or damaged pushrods, which come as a result of an overworked hydraulic lifter, need to be replaced completely. (August), Myrtle Beach, S. I guess it could be rocker arm noise too, but the noise is more noticeable on the right side, where the lifters are. Home / Shop / Brand / Prosource Diesel / OEM Intake/Exhaust Rocker Arm Assembly for 03-10 6. The tighten 1 1/2 more turns. Each Softail model represents a distinct branch of the factory-custom tree; the nostalgia of the FLSTN. Harley Davidson Twin Cam 103 Ticking Sound | Fix My Hog Noise sound more like the rocker shaft rotating in the support plate than a loose rocker arm but hard to distinguish between the two. The Sifton Rocker Arm Adjuster Kit allows your rocker arms to stay in constant, noise-free adjustment regardless of. The factory rocker arm is on the left, and the upgraded arm on the right. For all 2008 and later painted parts, refer to the Service Section of h-dnet. Ignition misfire. The tapping noise is noticeably louder now. Click the register link on the top right to proceed. A single chain-driven camshaft is lighter, mechanically less complex and creates less friction and noise. The noise is often heard coming from the camshaft (center of the engine). 030 over supports require the rocker shaft notch to be clearanced for the mounting bolt. The Twin Cam design addressed strength weaknesses in the Evo engine crankcase, improved oiling, used chains instead of gears as cam drive to reduce noise, used air and oil cooling to reduce engine temperature, and used 2 cams instead of one to optimize pushrod/rocker arm alignment. The Rocker and Rocker C are part of a seven-model Harley-Davidson Softail line for 2008. Make sure your front pipe flange is not loose either, cause sometimes exhaust leaks can make some funky noises as well. The valve tip heights are exactly the same when issued from the factory. The shaft that slides thru the rocker arms is stabilized at the end by a flat that allows the bolt to slide past, but keeps the shaft from moving in an arc. The symptoms I experienced were as follows:--Runs great at. Check out the 6. C15 ACERT Truck Engine Disassembly & Assembly Shop Manual High resolution, searchable, printable PDF format Covers: C15 MXS Prefix On-Highway Truck Engines (Serial MXS 1 and up)Pages: 348Format: PDFCompatibility: Windows/Mac/Linux The following is a list of topics covered in this manual: Fuel Priming Pump – Remove and Install Fuel Filter Base – Remove Fuel Filter Base – Disassemble. Replaced a gasket on one end of the exhaust flex hose section. Only registered users may post new messages on this forum. Eventually (usually over 50k miles), parts begin to wear.