Kawasaki KVF650/ 700, KSV 700 Camshaft Installation Instructions

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Filed Under (Kawasaki) by admin on 29-04-2012

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Liberally apply assembly lube to every surface of the camshaft. Install the camshaft into the cylinder head (the lobes should be pointed down) and align the decompressor shaft dowels with the weight arms. Install one of the camshaft sprocket holder bolts and tighten to less than finger tight, you should be able to move the camshaft very slightly back and forth, roll the crank over until the other bolt hole is exposed and insert the sprocket bolt and tighten to less than finger tight. Install the cam chain tensioner assembly, do not install the spring, spring dowel, washer, and bolt. Using the spring from the cam chain tensioner very slowly push the tensioner shaft in until the cam chain slack has just been taken out, this is witnessed by the very slight lifting of the opposite end of the cam out of the cylinder head cam journal, do not over tighten the cam chain at this point, if you do, remove the tensioner assembly and retract the plunger again and start over. (If it stays too tight it will stretch the cam chain prematurely and cause cam sprocket damage when the engine is assembled) Roll the camshaft toward the back of the machine (clockwise) loading the sprocket bolts against the back of the sprocket bolt holes, while holding the camshaft in that direction, tighten the sprocket mounting bolt to 14 ft/lb of torque. Rotate the engine in the opposite direction that you rotated it earlier and align the TDC mark, tighten the other sprocket-mounting bolt to 14 ft/lb of torque. Verify the cam timing and crankshaft TDC marks are in alignment

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Harley-Davidson Twin Cam Engines Cam Chain Drive System Installation and removal MANUAL

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Filed Under (Harley Davidson) by admin on 27-03-2012

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Removing the Cam Chain Drive System. NOTES Changing camshafts and cam drives in the 2006-up Harley-Davidson® Twin Cam 88® engines is different than in pervious engines. Procedures require use • of some special tools. Installation should be done by an experienced mechanic with access to factory service manual and required tools. Tighten all fasteners to the correct specifications and in order described. Always use an accurate torque wench. • Incorrect installation can cause engine damage not covered under warranty. CAUTION Failure to install components correctly can result in sudden engine seizure. Engine seizure may result in serous injury to motorcycle operator, passenger, or others. A- Disconnect the battery ground cable to eliminate potential sparks and inadvertently engagement of the starter while working on the motorcycle. B- Remove spark plugs and pushrod cover clips. Collapse the pushrod covers to expose the pushrods. C- Safely elevate and stabilize the rear of the motorcycle. Place the transmission in high gear. Turn the rear wheel to rotate the engine until both lifters and pushrods for either cylinder are at the lowest point on the camshaft (TDC of compression stroke). Both intake and exhaust pushrods for that cylinder will be under pressure from the valve springs and will rotate with light finger pressure. NOTE: 510G camshafts may use stock style non-adjustable pushrods instead of adjustable pushrods. If installing non-adjustable pushrods, disassemble and assemble rocker boxes per H-D® instructions. All other S&S® gear driven cams require installing adjustable pushrods. As a time-saving measure, the stock pushrods can be removed with bolt cutters. Be sure to head caution and warnings of these instructions. D- Cut the pushrods for the cylinder that is at TDC with the bolt cutter and remove the pushrod covers from the engine. Rotate the engine to place the pushrods for the other cylinder at their lowest point. Cut and remove the remaining pushrods. WARNING CAUTION Cutting pushrods with a saw or cutoff wheel may result in debris entering the engine, causing engine damage not covered under warranty. WARNING Cutting pushrods without releasing spring pressure, by rotating the engine until tappets are at the lowest point of travel can result in bodily injury. E- Remove the pushrod covers and lifters form the crankcase. F- Remove engine cam cover and gasket. Secure lifers with a tool made from a large binder clip

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Honda XR600/ XR650L Camshaft Installation and removal Instructions

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Filed Under (Honda) by admin on 05-12-2011

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Remove the tappet covers. Remove the crankshaft cap and timing hole cap on the left engine case cover. Remove the spark plug. Rotate the engine in a counter clockwise direction. Position the engine at true top dead center (TDC) using the mark on the flywheel. True top dead center occurs when both the intake and exhaust valve are closed when the piston is at TDC. This is technically the end of the compression stroke and the beginning of the power stroke. The “artificial” TDC is during the overlap when both the intake and exhaust valves would be open. Since the rocker arms are located in the valve cover on an XR600, true TDC occurs when the cam lobes are pointed downward when the piston is at TDC. Remove the cylinder head cover. Warning, do not drop the locating dowels into the cam chain cavity. There are two dowels, one on either side of the cover. Remove and discard the gasket. Note the positioning of the cam lobes, this will help during installation of your new Hot Cams camshaft. Note also the location of the sealed bearing on the end of the camshaft and the direction in which it is facing. Loosen the bolts that hold the camshaft sprocket. Remove the lower camshaft sprocket bolt first, it will be necessary to rotate the engine. Rotate the engine back to TDC. Release the spring tension on the cam chain tensioner by lifting the end of the spring out of its hole in the tensioner block. A spring tool is a good method. Be careful not to scar the cylinder head’s gasket surface for the cylinder head cover. Remove the allen bolt that holds the end of the tensioner block shaft
just to the inside of the tensioner block. Note the location of the tensioner block shaft cap ridge. Using a pair of pliers pull the shaft out by grasping the ridge and using a clockwise rotation of the shaft while pulling outward. Pull the tensioner block upwards, out of the cylinder head. Remove the top camshaft sprocket bolt. Pull the sprocket off the camshaft but maintain upward tension, do not allow the chain to sag, it is possible for the chain to “slip” on the bottom sprocket of the crankshaft and change the cam timing. Remove the camshaft. Remove the cam bearings. Set the stock camshaft with the auto-decompression aside. It is not possible to use the auto-
decompression on the Hot Cams so do not attempt to re-install. Use a manual decompression. Install the bearings onto the new Hot Cam

Honda CBX 1000 six-cylinder engine Motorcycle Road AND Racing Chassis

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Filed Under (Honda) by admin on 27-11-2011

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twin-cylinder engines. Dresda was supplied a complete bike, from which the engine was removed and fitted into the Dresda frame. It was during this project that Dave Degens’ forward thinking showed itself once more, when he incorporated monoshock rear suspension, quite an advanced feature for the early 1970s. The Yamaha project would also demonstrate that Dave Degens’ skills extended to engines. The Yamaha twin suffered a persistent internal problem; Degens established the cause and carried out modifications to eliminate it. This work led to a contract for Dresda to follow the fault right through, including visiting the Porsche test centre where development on the engine was being carried out. He oversaw the various modifications, and also developed a further mod to rectify a fault that caused
the cam chain to destroy its tensioner. Whilst at the test centre, Dave became aware that an engine under test was not running correctly, and discovered that the throttle slides were fitted incorrectly. Much to everyone’s amazement, he corrected the throttle setup, and the engine achieved its expected power output. With a successful development frame for Yamaha and the engine work, Dave Degens and Dresda Autos had shown their potential to this important manufacturer. Of course, much of the motorcycling public already knew the worth of Dresda’s work, having seen that almost any engine would benefit from being fitted into a Dresda frame: Triumph, Norton, BSA, Suzuki, Honda,
and Kawasaki units have been used. In addition to its impressive frames, still being built, Dresdan Autos also markets its own swingarm kit, and have always offered a comprehensive modification service. It will modify a frame to take an alternative engine, or convert a dual shock system to monoshock, and carry out other special frame modifcations,
such as adding extra tubes to enhance stiffness

ENGINE ASSEMBLY MANUAL 450i, ENGINE REPAIR STAND – 450i

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Filed Under (Tips and Review) by admin on 28-11-2010

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INSTALLING THE CLUTCH : æ Install the bronze bushing, the clutch basket, the spacer washer and the clutch hub. Install the conical washer, apply thread locking material to the threads and install the nut. Use tool #R447 to hold the assembly and tighten the nut to 150 Nm . æ Soak the friction discs in engine oil prior to installation. Alternatively install a friction disc followed by a metal disc until they are all installed, the last disc to be installed will be a friction disc. Install the clutch actuating rod, the clutch lifter piece, the needle thrust bearing and the thrust washer. Install the pressure plate, the six springs, the six washers and the six screws. Tighten the screws to 11 Nm . Tool #R447
Page 8 sur 26 æ Install the two locating dowels, install a new gasket, and note that Sherco uses a special gasket with an integrated silicone bead. Do not use gasket sealer on the mating surfaces as the sealer could plug the oil passages. Install the clutch cover and tighten the twelve screws to 11 Nm . o INSTALLING THE CAM CHAIN DRIVE GEAR ON THE LEFT HAND SIDE OF THE CRANKSHAFT: æ Using a thermal heat gun, heat the cam chain drive gear to ≈ 100°C , install the gear on the LH side of the crankshaft after installing the key, install the circlip. Use care to avoid damage to the end of the crankshaft. Page 9 sur 26 o INSTALLATION OF THE CYLINDER : æ Use a sharp chisel to remove any of the metal gasket that protrudes above the cylinder mounting surface.

Bajaj Removing And refitting Automatic Cam Chain Tensioner

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Filed Under (Bajaj) by admin on 31-10-2010

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1. Remove the 2 Flanged Bolts securing the Tensioner Assembly. 2. Remove Tensioner Assembly from the engine block. 3. Unscrew and remove Lock Bolt. 4. Remove Pushrod, Ball & Retainer, Spring and “O” ring. Clean parts thoroughly and apply grease to the Balls & Retainer. Re-assembly procedure : 1. Place Spring on Pushrod and compress the spring beyond the hole in the Pushrod. 2. Insert a pin or wire into the hole in the Pushrod to hold the Spring in its’ compressed position. 3. Place Balls & Retainer onto Pushrod. 4. Insert Pushrod into the Tensioner body with the small flat on the Pushrod facing, and aligned with, the Locking Bolt hole. 5. Insert the Locking Bolt and tighten it against the small flat on the Pushrod to lock the Pushrod in the compressed position. Remove the pin that’s holding the Spring compressed. 6. Install the Tensioner assembly onto the cylinder block and install and tighten both Flanged Bolts. Be sure that the “O” ring has been installed at the base of the flange. 7.Looosen the Lock Bolt to release the Pushrod, then re-tighten the lock bolt

Kawasaki KFX KLX 400 Camshafts Installation Instructions

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Filed Under (Kawasaki) by admin on 25-10-2010

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Remove the plug bolt from the back of the cam chain tensioner assembly. It is under pressure from the spring. Remove the spring and pin. Remove the bolts and tensioner assembly from the cylinder. Release the lock on the tensioner assembly and push the tensioner rod into the assembly so that it is fully retracted. Remove the eight 5mm Allen headed bolts that hold the cam caps in place. Remove the cam caps; be aware of the locating dowels in the caps to keep them from falling into the engine. It may be necessary to pry very lightly on the caps to lift them off their dowel pins. Do not use the cam lobe as the pry point. Lift the intake camshaft out of its pocket in the cylinder head casting. Remove the cam chain from the sprocket, set the stock camshaft aside. Lift the exhaust cam out of its pocket in the cylinder head casting and remove the chain from the sprocket. Do not drop the cam chain; dangle it over the side of the engine while keeping slight upward pressure on the chain to maintain its position on the drive sprocket on the crankshaft. Using assembly lube, lube the shim buckets and bearing surfaces for the camshafts in the cylinder head. Set the exhaust camshaft into the cylinder head casting while at the same time fitting the cam chain over the sprocket. Make sure that you keep all the cam chain slack to the back of the engine. Repeat the above process for the intake camshaft. Again, make sure you keep the chain slack to the cam chain tensioner side of the engine. Check to be sure the crankshaft is still at TDC. Check the location of the cam lobes. The camshafts are marked, and preset to 108-degree centers. If the lobes are not where they should be, adjust the positioning of the camshaft by rotating the sprocket one tooth on the chain. Do this until it is in the correct position as before you removed the camshafts. Check the positioning of the crankshaft for the TDC mark

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