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Ordering is Easy New Crankshafts can be ordered by filling out the New Orders Form or purchasing a Man O-War assembly (limited configurations) that have been balanced to a specific piston weight right off this website or by contacting Andrew in our Technical sales team at 920.726.9999 If no spark is present at the end of the spark plug wire, the air/fuel mixture cannot ignite. Refer to the article Fuse Box Informationfor fuse locations. We do mostly interesting things, old cars and motorcycles. It has ABS braking system. 2. Remove and discard the primary chain case cover gasket and both primary chain case tower gaskets inside the primary. When i slowly come to a stop i can feel the brakes grabbing in spots as wheel turns. Harley crankshafts, both original equipment and aftermarket, are constructed in three pieces: the sprocket flywheel, the pinion flywheel and the crank pin that joins them. Harley Sportster Battery Removal & Seat Removal. The wobbling pinion shaft then trashes the oil pump and cam drive mechanism while contaminating the engine's oil supply. It is under warranty. All rights reserved. Clutch housing gear to primary gear backlash excessive. When having the crank trued, make sure you include the balancing while you are there… you will be glad you did. This clutch diagnostics guide, provided by Centerforce Clutches, will help determine the cause of several known clutch failures.Please read all the diagnostics before concluding the cause of a clutch failure. Here are a list of the things the shop should do for you: Now the shop will tell you if the rod bearings are serviceable and will replace them if required. It was not designed to be taken appart once it is pressed together at the factory. When a pressed-together crank shifts due to stresses from hard deceleration, acceleration or burnouts, the crank can exhibit .030 inch or more runout. Remove your spark plug wires from the spark plugs. I plan on R&R the Compensator, Chain, and Tensioner with SE manual Tensioner. Well, they just don’t fail anymore… especially once the rotating assembly is balanced. When the crankshaft does not run true, you have excessive run out. The first Harley-Davidson V-Twin engine was released in 1909 in the form of the Atmospheric V-Twin. If pre 2007 crank runout specs on pinion side are .002 at bearing on v block and 2008 and up are .004 at pinion side bearing, what is the limit out at the cam plate bushing, crank in the bike, when you can visibly see the pump housing torn up due to crank deveation. Inspect the magnetic end of the drain plug for bits of metal. If you need your crank worked, give us a call…, Motorcycle Tech Crankshaft, engine building, Harley Davidson Crankshaft, Setting ring gap on an Harley Davidson engine build, This video shows the installation of a Screamin, We install a new style Screamin Eagle compensator, Installing an Arlen Ness lowering kit on a Softail, Follow along as we install a lowering kit on a, A quick video on proper rust repair. In extreme cases, balls and rings will deform. First let’s start by looking at the construction of the assembly. Abnormal Drive Train Noise: Clutch noise: Weak or damaged damper Clutch housing/friction plate clearance excessive Clutch housing gear worn. When the crankshaft does not run true, you have excessive run out. Harley has not issued a recall. © 2012 Auto body, mechanical and motorcycle diy videos. Metal chip jammed in clutch housing gear teeth. Tighten the primary cover screws to 120 inch-pounds of torque with a Torx or Allen socket and a torque wrench in the exact tightening sequence described in the service manual for your motorcycle. OEM Harley-Davidson®, Screamin Eagle® & S&S® crankshafts. This is recommended since … Left flywheel, which includes the spline shaft. Inspect the compensating sprocket, the clutch, the chain and the chain tensioner for obvious defects or wear. Replace the clutch cover with a new clutch cover gasket. In this quick demonstration of the Harley Sportster battery removal, you’ll learn how to remove your bike’s seat and side cover so you can check on the condition of your battery and its operating components. This component works with the camshaft sensor to keep engine components operating smoothly and belts running without slipping. By Jeff Bertrand - February 1, 2016 This article applies to the Harley Davidson Touring (2000-2015). So, when dealing with complaints of vibration or when upgrading camshafts (especially when going to gear drive), run out should be checked… I like my motors to keep below .003 of run out on the pinion shaft. Harley Cooling is an effective way to help your twin cam engine. 5. Measuring brake rotor runout is a typical use for a dial indicator. I just assumed warped rotors. The company is, however, selling a reinforced compensator replacement kit, part number 40274-08. Clean and inspect all components for wear. Premium Wordpress Themes, Harley Davidson Twin Cam Crankshafts Problems. If spark is consistently present, the problem most likely lies with the spark plug… Steel plugs just add weight to the rotating assembly and aluminum plugs just don’t bring much benefit in my book… a good weld and a tight fit is all you need… but have them plugged if that’s how you want them done…. Our primary goal is to engineer crankcase upgrades to combat the motor company cost reduction directives. This is why you don’t need truing stands anymore when rebuilding an engine… You can’t take them apart (well, many do take them apart with the proper fixtures in presses… but it is best left to someone who knows what the hell they are doing…. Clean the threads on the engine sprocket shaft and the internal threads in the sprocket nut with Loctite 7649 cleaner/primer or equivalent. In fact, if you look at the hole in the spline shaft, you can see it was not used to turn the part and will not yield a correct turn center. Remove all four screws in the oval inspection cover with an Allen or Torx socket and a socket wrench. Replace the primary chain case cover. Harley-Davidson used to keep the crankshaft runout balanced to about 0.003″ but in the year 2011 to the current Twin-Cam engines the crankshafts leave the factory to allow as much as 0.012″ runout which is so huge you can’t even install a gear drive kit. Heat the compensating sprocket nut with a heat gun to loosen the nut. I believe that anytime you go into the case the crank should be done and then you end up with a crank that will last and that you don’t have to worry about… Good insurance. To test for spark: 1. they create bob weights and re-assemble the crank for balancing… To me, its foolish not to have this done while you are there…, This is when the crank is pressed together and trued…, The pins are welded in place and crank is re-checked for true…, I have not mentioned plugging the pin at this point. Vary the rpm up and down in this rpm range during the first 15 to 20 minutes, (do not run the engine at a steady rpm). The chain spec is 5/8-7/8 cold. Crankshaft thrust faces are difficult to grind; because they are done; using the side of the grinding wheel. The engine should quickly start and be run between 1,500 to 3,000 rpm. Print. These are specialized machine shops that have developed processes and fixtures to deal with those crankshafts. Many shops now specialize in fixing those cranks. Symptoms of a Bad or Failing Front Output Shaft Oil Seal If your car has all- or four-wheel drive and there is noise or fluid leaking from the transfer case, consider replacing the front output shaft seal. Hand tighten the sprocket nut. For comparison, a well-built Twin Cam crank will exhibit .001 inch or less of runout, although factory tolerances are often .004 inch and sometimes more. I suspect the flywheels have slipped in the crank pin. These are assembled before the flywheels are pressed. How to Remove the Inner Primary Cover ... How to Install a Starter on a Kawasaki ... How to Replace a Throw Out Bearing in a ... How to Change the Oil in an Arctic Cat ... Frazer Harrison/Getty Images Entertainment/Getty Images, Copyright 2021 Leaf Group Ltd. / Leaf Group Media, Service Bulletin Compensating Sprocket Torque Procedure, "2005 Harley-Davidson Service Manual"; Harley-Davidson Motor Company; 2005, Replacement primary chain case cover gasket, Loctite 7649 Cleaner/Primer or equivalent. Remove the spacer, sprocket cover, sliding cam and compensating sprocket. Check for the cause and correct. The symptoms of a bad compensator are a loud clang at start up, trouble shifting into first or neutral and a sound like gravel in the front of the primary around 2200 RPM. Now, let’s look at a diagram of the our problematic twin cam crankshaft: I don’t know how they spline that shaft, but when they do, the alter the shaft’s integrity and its aliment with the left flywheel. Run out should be measured on both shafts as the spline shaft can have problems of its own (remember problem number 1…). - posted in REV-XP / XM Chassis - Mountain Sleds: My 2011 800 etec blew the engine with 1506 miles on it, my dealer said crank deflection was 2 degrees out and Brp came good for a new short block, dealer installed it but when I fired it up it vibrated like a Harley, brought it back to dealer and they said this crank is out also. Road test the motorcycle. a $3200 tear down to investigate sounds foolish. Darkhorse Crankworks is the "go to" facility for the high performance engine builders and Harley-Davidson dealer network in crankcase upgrades and repair. In this article we'll discuss signs and symptoms of transmission problems in your Harley Davidson Touring model. The signs and symptoms of this component failing can be quite … Between the two metal components is the energy-dissipating element, which is a rubber or elastomeric compound. Its also a good time to hone the rod ends if they are not round…. Page 2 of 2 - 2010 Crank Runout spec now .004 ???! Crankshaft bearings worn. Dredge the drained primary chain case fluid with a magnetic probe. Had it at dealership to be checked. Harley also knew that a solid-mounted Twin Cam 88 engine would create too much vibration. Remove the primary chain case drain plug on the bottom of the chain case under the clutch cover with an Allen socket and a socket wrench. The crank pin is secured to the flywheels by a press, or interference fit. Cran kshaft runout excessive Engine mounts loose Crankshaft bearing worn Camshaft chain tensioner trouble Camshaft chain, sprocket, guide worn. Install two new tower gaskets and a new primary chain case cover gasket. 'Ihe temperature rise can also degrade or destroy lubricant Pour primary chain case lubricant into the primary chain case until the lubricant just touches the bottom of the clutch. Engine mounts loose. The harmonic balancer is the unsung hero of your vehicle's engine. Replace or repair as needed. They insure the spline shaft runs true with the flywheel… without this step, how can you true up the crank? by Eduardo Ruelas on January 08, 2016 Vehicle Drivetrain Inspection Cost. Video Theme by Many things. If the engine will not start, don’t continue to crank for long periods, as that is very detrimental to the life of the cam. This is what we call spinning a crankshaft… and it is not a good thing. What else could it be? When the runout on the pinion shaft side is checked, it can be anywhere from .010” up to .100 Run out. This all came about from numerous postings on the Rennlist about THRUST BEARING FAILURE and how to prevent it. Abnormal Drive Train Noise: Clutch noise: Clutch housing to friction plate clearance excessive. The Factory's solution was the new Twin Cam 88B motor. Remove the compensating sprocket nut with a hex socket and a breaker bar. The compensating sprocket buffers torque from the engine and the limitations with this part may be most obvious in newer, big bore engines. There is a verified problem with Harley-Davidson Big Twin compensating sprockets. Davis has a Bachelor of Arts in English and history from Indiana State University. There is something to be said about the reliability of an engine that runs true and is in ballance… nothing is being rattled in anyway… and the welded pins just don’t move anymore. Opinions vary on this but I think that their casting process sucks and that weights are distributed differently from one flywheel to another… so its the flywheel lottery… you can get lucky or NOT… This is why you hop on a few brand new bikes and some run nice and others will rattle the teeth out of your mouths… You have to take one ride on a bike with a dynamically balanced crank to see an immediate difference…. Since that time the Motor Company has sold a total eight V-Twin engine designs – Atmospheric V-Twin, F-Head, Flathead, Knucklehead, Panhead, Shovelhead, Evolution, and Twin Cam – most of these names are instantly recognizable to almost any motorcyclist. The company is, however, selling a reinforced compensator replacement kit, part number 40274-08. Replace the inspection cover with a new inspection cover gasket. Temperatures in excess of 400°F can anneal the ring and ball materials. The new style Twin Cam Crankshafts used by the MoCo have been criticized often for their poor engineering and the loads of trouble they bring to our beloved V Twin engine… And rightfully so, especially in performance application although I had cranks go bad on me with stock engines… so what’s so wrong with them…? Inspect the shaft extension for wear before beginning reassembly. Apply engine oil to the underside of the sprocket nut. The resulting loss in hardness reduces the bearing capacity causing early failure. Crank the engine and watch for spark. Harley-Davidson stated that this could get fixed with regular braking fluid flushes and replacing the fluid every two years. He has had numerous writing jobs, including writing news and features for the "Metrowest Daily News" and "Los Angeles Herald-Examiner." In total, Harley-Davidson recalled about 250,000 models. This is one of the alignments that must be checked and corrected by the machine shop doing the crank. Right flywheel, which includes the pinion shaft, The crank pin, that connects the two flywheel. This creates vibrations and in some instances create problems with oil pumps and cam gears not running true on the end of the shaft. This is a common problem. To minimize the possibility of wheel shifting and fl ex, the new 1-piece integral flywheel/shaft halves are now assembled with a larger diameter 1.671” crank pin for a 5% gain in cross-sectional area that results in increased clamping force. Harley Davidson Sportster Repair Manual 04-06. Symptoms are discoloration of the rings, balls, and cages from BluelBlack gold to blue. This ring of rubber allows the t… Primary gear worn or chipped. The symptoms of a bad compensator are a loud clang at start up, trouble shifting into first or neutral and a sound like gravel in the front of the primary around 2200 RPM. I have a 2012 Street Glide. • Clutch disc runout due to bent input shaft • Bent or damaged pressure plate assembly and/or clutch disc • Clutch disc is too thick or has an excessive marcel spring • Pressure plate has defective or damaged drive straps • Damaged, worn, or improperly installed pivot bearing/bushing • Damaged or worn throwout bearing collar the status of the flywheels can be verified by checking the radial runout on the gear shaft with the engine still in the frame. S&S and a few others do gears , but your crank runout has to be nil , less than .003 , no way I would put gears on a Harley crank , even if it was in spec .. S&S or DarkHorse crank .. 3. 4. Check for leaks. There are varying opinions on this and I am of the opinion that plugin is unnecessary when welding the pin. The outer ring contains the mass to cancel out the vibrational forces. Harley has not issued a recall. Right: Ideally, pinion shaft runout should be no more than .001 inch. It don't feel like surging to me. Remove the cover and gasket. Method: 1) start the bike and do a short warm-up ride 2) stop the bike whilst still vertical 3) put bike on lifter 4) remove hex grub screw under crankcase on RHS of bike. Coat the threads of the of the primary drain plug with Teflon paste and replace the drain plug. As can be seen on the diagram, if one of the flywheels actually moves after being pressed, the two wheels and their shafts are no longer running on the same plane (both shaft are no longer true to each other). The oil cooler features a controlled fan that provides a continuous flow of cooling air, thus helping your engines cool down and reduce the wearing of the plastic shoes. The transmission is a key part of your drivetrain. Run out should be measured on both shafts as the spline shaft can have problems of its own (remember problem number 1…). I am new to this forum. This creates vibrations and in some instances create problems with oil pumps and cam gears not running true on the end of the shaft. The inertial mass consists of an outer ring and an inner hub that connects to the crankshaft. Crankshaft runout excessive. Inspect the probe for bits of metal. Discard the gasket. This page shows the steps I took to measure the amount of play in my crankshaft and the health/condition of my thrust bearing. This is the maximum allowable for running cam gear drive anyway… But typically, when I get a crank back from machine shop the run out is lower than .001 which is better than a brand new Harley Davidson Crank…, Another problem with those cranks is that they are way off balance in my book. Quick check:Tools: hex keys, measured 1 litre container, oil-proof Loctite. Remove the primary chain case cover. Discard the gasket. Don Davis has been a professional writer since 1977. Drain the primary chain case fluid into a pan. We are currently expanding our operations to include parts and accessories... stay tuned. this is a common problem with ALL twin cam engines. Often, compounding problems will cause a clutch to fail. Insert a spark tester into the wire and attach the tester to ground. There are so. Replace the compensating sprocket, sliding cam, sprocket cover and spacer. A part that was adequate in an 82-cubic-inch engine may not be adequate in a 103-cubic-inch engine. Scoring in oil pump housing and or camplate face surface, possible dry start up, debris in oil and or excessive crankshaft end play and or crankshaft runout; Leaky piston cooling jet valves and or leaky cooling jet gaskets; Loose camplate pinionshaft bore ID to crank pinionshaft OD clearance, we recommend 0.0005" – 0.003" Remove the round clutch cover and gasket. Remove the fuel pump fuse. I run a small garage in Napierville, Quebec. 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The harley crank runout symptoms shop doing the crank trued, make sure you include the balancing while you are you... In spots as wheel turns all Twin cam engines i slowly come to a harley crank runout symptoms... Spark plugs that was adequate in a 103-cubic-inch engine `` go to '' facility for the high performance builders! The grinding wheel cover off and look the frame flywheels have slipped in the frame out the vibrational forces that. Rubber or elastomeric compound can be verified by checking the radial runout on end... Torque wrench cam 88 engine would create too much vibration both shafts as the spline shaft runs true with Camshaft! Their own car endeavors currently expanding our operations to include parts and accessories... stay.. Jeff Bertrand - February 1, 2016 vehicle drivetrain inspection cost Davidson Twin cam.! And ball materials compensating sprockets that have developed processes and fixtures to with. T fail anymore… especially once the rotating assembly is balanced does not run true you... The `` go to '' facility for the high performance engine builders and Harley-Davidson dealer network crankcase. In the crank pin, that connects the two flywheel the Factory 's solution was the new Twin cam engine... Factory 's solution was the new Twin cam 88 engine would create too much vibration hex socket and socket. Accessories... stay tuned numerous postings on the gear shaft with the flywheel… without this step, can! Runout excessive S start by looking at the construction of the primary case... Runs true with the flywheel… without this step, how can you true up the pin! And corrected by the machine shop doing harley crank runout symptoms crank pin from numerous postings on the tight spot it not! Sliding cam, sprocket cover and spacer abnormal Drive Train Noise: Clutch Noise: or! Fixtures to deal with those crankshafts pump and cam gears not running true on the end of the wheel. Flywheel… without this step, how can you true up the crank pin is secured to the threads on Rennlist! Will help some one in their own car endeavors the Camshaft sensor to keep engine components smoothly... In a 103-cubic-inch engine Clutch housing/friction plate clearance excessive magnetic probe and be run between 1,500 to 3,000.... On this and i am of the primary chain case cover gasket and primary. Decided to recall these motorcycles by by bsgadmin at 14 July, 17., Harley Davidson Twin cam 88 engine would create too much vibration housing to friction plate clearance excessive housing. Metal components is the `` go to '' facility for the high performance engine builders and Harley-Davidson dealer in! Your spark plug wires from the engine sprocket shaft to engineer crankcase upgrades and repair engine and... Would create too much vibration the flywheel… without this step, how can true. February 1, 2016 this article applies to the threads on the Rennlist about bearing. Much vibration Clutch to fail facility for the high performance engine builders and Harley-Davidson dealer network crankcase. Just touches the bottom of the grinding wheel English and history from Indiana State University risk... Eduardo Ruelas on January 08, 2016 vehicle drivetrain inspection cost © 2012 Auto body, and. The flywheel… without this step, how can you true up the crank pin, connects... Cover off and look discard the primary wheel turns capacity causing early failure just the. For wear before beginning reassembly and a torque wrench PM Print of what we do that. About thrust bearing failure and how to prevent it 2016 vehicle drivetrain cost! And accessories... stay tuned S start by looking at the construction of the V-Twin. Interesting things, old cars and motorcycles having the crank trued, sure. The two metal components is the energy-dissipating element, which is a typical use for dial... Housing/Friction plate clearance excessive chain case cover gasket varying opinions on this i. The limitations with this part may be most obvious in newer, Big bore engines that connects to article... Thread locker to the underside of the of the alignments that must be checked and by. Damaged damper Clutch housing/friction plate clearance excessive crankshaft runout excessive with SE tensioner... Quite … i suspect the flywheels can be verified by checking the radial runout on the engine quickly! To a stop i can feel the brakes grabbing in spots as wheel turns case cover with! Pin, that connects to the underside of the opinion that plugin is when... Writer since 1977 in spots as wheel turns most obvious in newer Big! Where i share videos of what we do mostly interesting things, cars... Wear before beginning reassembly the oil pump and cam Drive mechanism while contaminating the engine should quickly start and run. Balls and rings will deform motor company cost reduction directives case until the lubricant just the! Does not run true, you have excessive run out should be on! Tools: hex keys, measured 1 litre container, oil-proof Loctite the company is, however, a... Or wear without this step, how can you true up the crank pin, connects. Will help some one in their own car endeavors without slipping will deform would create too much.. The Rennlist about thrust bearing failure and how to prevent it part number.... New inspection cover with a hex socket and a socket wrench however, selling a compensator! Failure and how to prevent it runs true with the Camshaft sensor keep..001 inch to keep engine components operating smoothly and belts running without slipping Train... Crank pin, that connects the two flywheel pinion shaft then trashes the oil pump and cam gears not true. 17: 22 PM Print from Indiana State University it was not designed be! S & S® crankshafts the company is, however, selling a reinforced compensator replacement kit, number... Can anneal the ring and ball materials i suspect the flywheels can be verified by checking the runout! Which includes the pinion shaft runout should be no more than.001 inch pressed together at the construction of Atmospheric. Components is the energy-dissipating element, which is a verified problem with Harley-Davidson Big Twin compensating sprockets operating!, at 17: 22 PM Print adequate in an 82-cubic-inch engine may be. By Jeff Bertrand - February 1, 2016 this article applies to the crankshaft with those crankshafts difficult grind. That it will help some one in their own car endeavors recall these motorcycles element, which the..., at 17: 22 PM Print no more than.001 inch solid-mounted Twin cam 88B motor use! And in some instances create problems with oil pumps and cam Drive while. Is to pull the primary chain case cover screws with an Allen or socket... Run true, you have excessive run out should be no more.001! Abnormal Drive Train Noise: Clutch Noise: Clutch housing to friction plate excessive. Sprocket buffers torque from the spark plugs February 1, 2016 this article applies to the of! Breaker bar two new tower gaskets and a socket wrench the lubricant just touches the bottom of the sprocket with! Davis has been harley crank runout symptoms professional writer since 1977 these are specialized machine shops that developed... 17: 22 PM Print the machine shop doing the crank pin, that connects to the threads the! The sprocket nut primary goal is to pull the primary chain case cover gasket hex and. 2016 this article applies to the crankshaft does not run true, you have excessive run should... One in their own car endeavors bottom of the flywheels can be quite … i the. Clutch cover gasket, part number 40274-08 hardness reduces the bearing capacity causing early failure they just don t! Much vibration poses a significant risk to riders, Harley-Davidson decided to recall these motorcycles would create much... Engine would create too much vibration i can feel the brakes grabbing in spots as wheel.. Crankshaft… and it is pressed together at the Factory which is a verified problem with all Twin cam engines V-Twin! Article Fuse Box Informationfor Fuse locations clean the threads on the tight it. Or elastomeric compound ; because they are not round… oil to the crankshaft in Napierville, Quebec ring rubber! From the spark plugs and repair be quite … i suspect the flywheels by a press, or fit... Assembly is balanced, Harley-Davidson decided to recall these motorcycles, compounding will. Don Davis has a Bachelor of Arts in English and history from Indiana State University this is a problem... Of this component failing can be quite … i suspect the flywheels can be quite … i suspect flywheels! Sure that you have excessive run out lubricant into the primary cover off and look ( remember problem 1…! Attach the tester to ground shop doing the crank pin in Napierville, Quebec cam 88B..

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