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CYLINDER HEAD REPAIR MANUAL

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Filed Under (Tips and Review) by admin on 28-10-2010

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ADJUSTABLE CYLINDER HEAD STAND Head can be rotated 360 degrees. Stays in any position using a simple locking mechanism. Use on twin or four cylinder heads. Shipping weight: 14 lbs. Adjustable length-10-1/2″ to 20-1/2″ long x 14″ width x 10-3/4″ high. 35-8602 Cylinder Head Stand VALVE GUIDE DRIVERS Use for removal and installation of valve guides into cylinder head. Available in the following sizes: 35-8418 4.5mm YM-4116 35-8416 6mm YM-4064-A 35-8417 5mm YM-4097 35-8414 7mm YM-1225-A 35-8408 5.5mm YM-1122 35-8413 8mm YM-1200 VALVE GUIDE DRIVER SET (REMOVE & REPLACE) Designed for speed and accuracy, this eleven piece set provides the right tool for the job. Driver set includes two valve guide drivers (5.5mm and 6.6mm), four valve guide installers, one cutter, three cutter pilots (5.5mm, 6.6mm, and 7.7mm) and one tap handle extension bar. 35-9445 Valve Guide Driver Set YAMAHA VALVE GUIDE INSTALLERS These installers are used for installation of Yamaha shoulder less valve guides to a specific depth into the cylinder head. To use, position onto the valve guide and drive into the cylinder head until installer makes contact with cylinder head surface. Note: Must use with Valve Guide Driver. Available in the following sizes: 35-8439 4.5mm YM-4117 35-8437 5.0mm YM-4098 35-8419 5.5mm YM-4015 35-8435 6mm YM-4065-A 35-8423 7mm YM-4017 VALVE GUIDE REAMERS Reaming valve guides after installation assures a proper valve stem to valve guide fit. Available in the following sizes: 35-3829 4.5mm YM-4118 35-3851 7mm YM-1227 35-3836 5.5mm YM-1196 35-3852 8mm YM-1211 35-3847 6mm YM-4066 CLOVER VALVE LAPPING COMPOUND KIT The world famous green can with the four leaf clover. For seating valves, mating gears, and sharpening. Sold as a kit with coarse 120 grit (roughing) and 280 fine grit (finishing). 35-0309 Clover Valve Lapping Compound VALVE LAPPING TOOL The ultimate vacuum stick for insuring perfect surfaces on valves and valve seats. Interchangeable cups make unit suitable for use with virtually any size valve. Set includes vacuum stick, 3/4″ and 1/4″ diameter rubber cups. 35-8998 Valve Lapping Too

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TVS – 811 Series Trap Valve Station Installation, Operation and Maintenance Instructions

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

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In a piston valve, the control of stem and seat leakage is obtained by tightness of the valve sealing rings to the body and valve plug. The bonnet compresses the valve sealing rings against the body and the valve plug. Flexible disc springs automatically assure a tight seal by exerting pressure on the valve sealing rings, keeping them compressed. Opening and Closing the TVS Isolation Valves The isolation valve begins to stop flow when the valve plug enters the lower valve sealing ring. When the isolation valve is completely closed, the valve plug is in contact with the full height of the valve sealing rings, ensuring the best possible seal. In fact, there is no advantage to be gained in torqueing the valve closed. Armstrong recommends that after closing the isolation valves completely, the handwheel should be turned back one half turn. This makes it easy to re-open the valve by avoiding metal to metal seizure. Troubleshooting – Isolation Valves A piston valve will retain its leak tightness for several years without maintenance. In severe service, such as rapid heating and cooling, some field maintenance may be required. Depending on the problem, these simple steps may help: ! ! ! ! ! Isolation Valve leaks, when the valve is closed . First, Check to make sure the valve is actually closed . Check to see if bonnet is seated on the body, if not, tighten the bonnet nuts until the bonnet seats. This recompresses the valve sealing rings against the body and the valve plug. If valve continues to leak, replace the isolation valve assembly

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1998 YAMAHA YZF-R6 SERVICE MANUAL

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Filed Under (Yamaha) by admin on 25-11-2010

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Camshafts Drive system Camshaft cap inside diameter Camshaft journal diameter Camshaft-journal-to-camshaftcap clearance Intake camshaft lobe dimensions Measurement A Measurement B Measurement C Exhaust camshaft lobe dimensions Measurement A Measurement B Measurement C Max. camshaft runout Chain drive (right) 23.000 23.021 mm 22.967 22.980 mm 0.020 0.054 mm 33.05 33.15 mm 25.14 25.24 mm 7.81 8.01 mm 32.55 32.65 mm 25.07 25.17 mm 7.38 7.58 mm 0.08 mm 33.0 mm 25.09 mm 32.50 mm 25.02 mm 0.06 mm
2-5 ENGINE SPECIFICATIONS SPEC Head Diameter Face Width Seat Width Margin Thickness Item Standard Limit Timing chain Model/number of links Tensioning system RH2015/120 Automatic Valves, valve seats, valve guides Valve clearance (cold) Intake Exhaust Valve dimensions 0.11 0.20 mm 0.21 0.30 mm Valve head diameter A Intake Exhaust Valve face width B Intake Exhaust Valve seat width C Intake Exhaust Valve margin thickness D Intake Exhaust Valve stem diameter Intake Exhaust Valve guide inside diameter Intake Exhaust Valve-stem-to-valve-guide clearance Intake Exhaust Valve stem runout Valve seat width Intake Exhaust 24.9 25.1 mm 21.9 22.1 mm 1.14 1.98 mm 1.14 1.98 mm 0.9 1.1 mm 0.9 1.1 mm 0.6 0.8 mm 0.6 0.8 mm 3.975 3.990 mm 3.960 3.975 mm 4.000 4.012 mm 4.000 4.012 mm 0.010 0.037 mm 0.025 0.052 mm 0.9 1.1 mm 0.9 1.1 mm 1.6 mm 1.6 mm 0.5 mm 0.5 mm 3.950 mm 3.935 mm 4.042 mm 4.042 mm 0.08 mm 0.1 mm 0.04 mm 1.6 mm 1.6 mm
2-6 ENGINE SPECIFICATIONS SPEC Item Standard Limit Valve springs Free length Intake (inner) (outer) Exhaust Installed length (valve closed) Intake (inner) (outer) Exhaust Compressed spring force (installed) Intake (inner) (outer) Exhaust Spring tilt Intake (inner) (outer) Exhaust Winding direction (top view) Intake Exhaust 37.0 mm 38.4 mm 41.7 mm 30.0 mm 32.5 mm 36.1 mm 69 79 N (7.0 8.0 kgf) 114 132 N (11.6 13.4 kgf) 160 184 N (16.3 18.7 kgf) Clockwise Clockwise 35 mm 36.5 mm 39.5 mm 2.5/1.6 mm 2.5/1.7 mm 2.5/1.8 mm Cylinders Cylinder arrangement Bore stroke Compression ratio Bore Max. taper Max. out-of-round Forward-inclined, parallel 4-cylinder 65.5 45.5 mm 12.4 : 1 65.50 65.51 mm 0.05 mm 0.05 mm

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Lilac LS-18 Motorcycle Maintenance Standards

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Filed Under (Lilac) by admin on 25-11-2010

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CYLINDER AND CYLINDER HEAD MAINTENANCE ITEM STANDARD REPAIR LIMIT METHOD REMARKS Cylinder Bore 54 -0.01 54.1 Boring After boring honing should be performed Ovality 0.01 0.05 Boring After boring honing should be performed Taper 0.01 0.05 Boring After boring honing should be performed Oversize 0.25 steps 55 max. Do R and L cylinders at same time / 4 steps Valve Seat Width 0.8 – 1.0 1.3 Adjust Use a cutter Angle 45∞ Combustion Chamber Volume 18.2cc -0.5cc Remove carbon if heavy accumulation Compression Ratio 7.8:1 Head Gasket Thickness 1.0 Cylinder Head Nut Torque 3.0 kg/m (22 ft.-lb.) Out standard Adjust 8mm nut Intake and Exhaust Ports Port Wall SurfaceMust be smooth Remove carbon Intake and Exh. Valve GuidesOD 12 +0.09 +0.1 ID 7 +0.01 -0.0 7.06 Exchange Intake Valve Stem Diameter 7 -0.02 -0.03 6.9 Exchange Head Thickness 1 0.7 Exchange Exhaust Valve Stem Diameter 7 -0.02 -0.03 6.9 Exchange Head Thickness 1 0.7 Exchange Intake and Exhaust Valve Seat Face Width Range 0.8~1.0 1.3 Use valve seat cutter Intake Valve Guide Clearance 0.02~0.04 0.08 Replace valve or guide Exhaust Valve Guide Clearance 0.06~0.08 0.12 Replace valve or guide Valve Spring (Large) Installed Load 10.2 kg 8.7 kg Replace Fitted length 31.5 Free Length 36.5 34.7 Replace Tilt 1.5/100 3/100 Replace Valve Spring (Small) Installed Load 5.48 kg 4.65 kg Replace Fitted length 29.5 Page 4 of 10 Free Length 33.5 31.8 Replace Tilt 1.5/100 3/100 Replace Rocker Arm ID 12 +0.00 +0.02112.07 Replace Rocker Shaft OD 12 -0.06 -0.024 11.92 Replace Arm and Shaft Clearance 0.045~0.006 0.10 Replace arm or shaft Tappet Clearance 0.05 Out standard Adjust Measure cold at TDC Rocker Arm Ball Surface 1.8îR -0.006 -0.024 Replace if severe wear Pushrod Bend 0.1 0.5 Straighten Over 100mm (2) CRANKSHAFT, PISTON AND CONROD MAINTENANCE ITEM STANDARD REPAIR LIMIT METHOD REMARKS Piston OD @ Top 53.65 -0.02 Max Diameter 53.95 -0.015 53.85 Replace Ovality 0.1 Piston and Cylinder Clearance 0.04~0.05 0.15 Replace Piston Ring Groove Clearance 0.03~0.07 0.10 Replace Piston Oversize Step 0.25 4 steps Top Ring and 2nd Ring Thickness 2 -0.01 -0.03 1.92 Replace Width 2.5 -0.01 0.55kg Tension 0.85 – 1.15kg 1 Replace End Gap 0.15 – 0.35 Replace Oil Ring Thickness 3.2 -0.01 -0.03 3.12 Replace Width 2.5 -0.1 Tension 1.0~1.3kg 0.65kg Replace End Gap 0.15~0.35 1 Replace Ring Gap Position 120∞ 3 equal spacesOut standard Adjust Avoid Piston Pin Axis Ring Oversizes 0.25 steps 4 steps Piston Pin OD 15 -0.0 +0.006 14.95 Replace Pin Hole in Piston ID 15 +0.012 -0.015.05 Replace Pin and Piston Clearance -0.006 ~ +0.012 0.06 Replace Hand push fit piston at 100∞C Conrod Small End Bush ID 15+0.027+0.016 15.07 Replace bush Conrod and Piston Pin Clearance 0.01~0.027 0.07 Replace Crankpin OD 24.94 +0.0+0.0124.90 Replace Crankpin Roller OD 5 (+0.001+0.003) Refer to conrod ID Replace 3Sizes; 52 per assembly for selective fit 5 (+0.0 -0.002) 5 (-0.003 -0.005) Conrod ID 34.95+0.03+0.02435.02 Axial Play 0.2~0.4 0.5 Adjust Radial Play 0.026~0.036 0.06 Replace

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Honda VT1100 Shadow Guide Plug Patch Repair Manual

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Filed Under (Honda) by admin on 24-04-2011

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Find the guide plug.bn The guide plug is shown in the shop manual with the engine removed from the frame and the left crankcase cover removed. (You’ll find this illustration in the “ELECTRIC STARTER/STARTER CLUTCH” chapter in the “STARTER DRIVEN GEAR/STARTER CLUTCH REMOVAL” section.) It’s a little bit harder to find it on the bike. Start by following the yardstick to see where the guide plug is on my bike. To find it on your bike, lie on the ground (or, preferably a mechanics creeper) next to the bike (without the yardstick) and peek under the shift lever and over the frame There it is, just barely visible from the side of the bike. Here’s what a new one looks like: 2. Clean the guide plug and crankcase. From the front of the bike, clean the guide plug and crankcase with brake cleaner in a VERY focused spray. Let the cleaner evaporate before moving to the next step. Page 4 Rev: Draft 5/20/2007 Page 4 of 5 3. Reposition the guide plug. a. From the side of the bike, use the yardstick (or a long screwdriver if you prefer) to gently push the guide plug back into the crankcase. (Note the JB Weld from the previous patch operation.) b. From the front of the bike, gently push upward on the bottom of the upper tab (as shown below) or the bottom of the forward tab to rotate the guide plug into the proper position while maintaining pressure with the yardstick

Harley-Davidson Valves, Guides And Seats Installation

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Filed Under (Harley Davidson) by admin on 31-10-2010

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1: Clean carbon from old guide O.D. before removal. 2: Guide to head press fit .0015″ / .002″ (head smaller than guide). 3: Heat head to approximately 200° – 250° F. 4: Install the guide at room temperature (Head hot & Guide at room temperature). 5: Let head cool to room temperature before final sizing of the bore. 6: Determine desired clearance valve to guide. Recommended clearance Shovel Head with cast iron guides Intake .001″ – .0015″ Exhaust .0015″ – .002″ (Ampco-45 add .001″) 7: Select the correct plug gage by adding the valve stem diameter and clearance desired for the finish diameter. 8: Select a plug gage .0005″ under finish size for the other end of the handle. 9: Finish hone the bore to size, check the size as you hone with the -.0005″ under size pin gage, finish hone to size with the finish plug gage pin. 10: Cut or Grind the seats, lap the valves to seats and check valve seat concentricity before assembling valve springs. 11: Use a good assembly lube, S’NS works great. 12: Use valve stem seals. Factory OE seals will stay tight with guide top size +.005″ to -.015″ from published size. 13: After the head is assembled and still on the bench check for any leakage valve to seat

2003 SUZUKI SV 650 FUEL SYSTEM AND THROTTLE BODY SERVICE MANUAL

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Filed Under (Suzuki) by admin on 26-02-2011

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FUEL PUMP The electric fuel pump is mounted at the bottom of the fuel tank, which consists of the armature, magnet, impeller, brush, check valve and relief valve . The ECM controls its ON/OFF operation as controlled under the FUEL PUMP CONTROL SYSTEM . When electrical energy is supplied to the fuel pump, the motor in the pump runs and together with the impel- ler . This causes a pressure difference to occur on both sides of the impeller as there are many grooves around it . Then the fuel is drawn through the inlet port, and with its pressure increased, it is discharged through the outlet port . The fuel pump has a check valve to keep some pressure in the fuel feed hose even when the fuel pump is stopped . Also, the relief valve is equipped in the fuel pump, which releases pressurized fuel to the fuel tank when the outlet of the fuel pressure has increased up to 450 -600 kPa (4.5- 6.0 kgf/cm2,64- 85 psi) . Relief valve Brush , ∎ I,’ Check valve Magnet L Armature When the impeller is driven by the motor, pressure differential occurs between the front part and the rear part of the blade groove as viewed in angular direction due to fluid friction . This process continuously takes place causing fuel pressure to be built up . The pressurized fuel is then let out from the pump chamber and discharged through the motor section and the check valve . FUEL SYSTEM AND THROTTLE BODY 5- 3 Inlet port I I Impeller 5-4 FUEL SYSTEM AND THROTTLE BODY FUEL PRESSURE REGULATOR The fuel pressure regulator consists of the spring and valve . It keeps absolute fuel pressure of 300 kPa (3.0 kgf/cm2,43 psi) to be applied to the injector at all times . When the fuel pressure rises more than 300 kPa (3 .0 kgf/cm2, 43 psi), the fuel pushes the valve in the regulator open and excess fuel returns to the fuel tank . 90 Spring 02 Valve FUEL INJECTOR The fuel injector consists of the solenoid coil, plunger, needle valve and filter . It is an electromagnetic type injection nozzle which injects fuel in the throttle body according to the signal from the ECM. When the solenoid coil of the injector is energized by the ECM, it becomes an electromagnet and attracts the plunger. At the same time, the needle valve incorporated with the plunger opens and the injector which is under the fuel pressure injects fuel in conic dispersion . As the lift stroke of the needle valve of the injector is set constant, the volume of the fuel injected at one time is determined by the length of time during which the solenoid coil is energized (injection time)

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Daytona 675 Motorcycle Race Kit Installation Manual

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Filed Under (Triumph) by admin on 29-10-2010

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Remove the existing cylinder head gasket in line with the procedures detailed in the Daytona 675 service manual. 2. Fit the chosen race kit cylinder head gasket following the procedures detailed in the Daytona 675 service manual. Caution The use of the following race kit cylinder head gaskets will require changes to the fuelling settings. To alter fuelling settings a third party programmable control unit will be required. Item Description Qty 1 Head gasket (t = 0.65mm) 1 1 Head gasket (t = 0.60mm) 1 1 * Page 7 of 29 © Triumph Designs Ltd 2007. Cams, Valve Spring & Sprocket Kits Parts Supplied Camshaft Inlet Kit – A9618055 Camshaft Exhaust Kit – A9618056 Valve Spring Kit – A9618058 Camshaft Sprocket Kit – A9618057 Warning The race kit must be fitted as a complete set. If it is not fitted as a complete set a failure may result which could cause loss of motorcycle control and an accident. Caution The use of the Camshaft, Valve spring & Sprocket race kits detailed below will require changes to the fuelling settings. To alter fuelling settings a third party programmable control unit will be required. 5 5 4 1 3 2 4 3 Item Description Qty 1 Cam assy, inlet, race 1 Item Description Qty 2 Cam assy, exhaust, race 1 Item Description Qty 3 Valve spring, 14.4id, race12 Item Description Qty 4 Sprocket, camshaft, 34T 2 5 Socket head cap screw, Encapsulated, M6x10 4
Page 8 of 29 © Triumph Designs Ltd 2007. NOTE •The standard inlet cam is 9.25mm max lift and 258.50o duration. The race kit inlet cam is 9.25mm max lift and 268.74o duration. •The standard exhaust cam is 8.5mm max lift and 246o duration. The race kit exhaust cam is 8.5mm max lift and 262.21o duration. •The race kit valve spring must be used in conjunction with the standard spring platforms and retainers. The fitted length of the race springs is the same as the standard spring. 1. The race kit valve springs should be assembled in the same manner as the standard valve springs. Follow the procedure detailed in section 3 of the Daytona 675 service manual. Ensure the springs are installed with the close wound, colour coded end of the springs facing downwards, towards the piston. 2. The race kit camshafts should be assembled in the same manner as the standard camshafts. Follow the procedure detailed in section 3 of the Daytona 675 service manual. 3. The race kit cam sprockets should be mounted and secured to the camshafts using the slotted holes in the sprocket. The slotted holes allow adjustment of the valve timing. The circular holes in the sprockets are for Triumph service tool T3880102 and should not be used to mount the sprockets to the camshafts. NOTE •No timing marks are included on the race sprockets. Race engines will typically have different depths skimmed off the cylinder head and, therefore require specific individual timing. 4. The camshafts should be timed using cam degreeing equipment which typically consists of a degree wheel, pointer, dial indicator and piston stop. Optimum cam timing will depend on the exact specification of the engine, but a recommended starting point is 104o IMOP (Inlet Maximum Opening Point) and 104o EMOP (Exhaust Maximum Opening Point). 5. Always check the inlet and exhaust piston to valve clearance for the timing selected to use, before running the engine. You must ensure both clearances are adequate. As a guide, the standard nominal piston to valve clearance is 1.3mm inlet & 1.5mm exhaust

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Honda CB 750 SOHC 8v Performance and Racing Camshafts Installation

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Filed Under (Honda) by admin on 18-11-2011

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Upon installation of your WEB-CAM camshaft, check the following. These operations are very important to engine
life, please follow instructions! If your cam is described as a bolt-in in the WEB-CAM catalog, you may skip 1-5
below. Check piston to valve clearance. Provide the necessary clearance by removing material from the piston Minimum .050″ intake, .080″ exhaust.1. Check valve to valve clearance. It may be necessary to remove material from the valves or sink valve seat height in head. 2. Check the valve spring retainer to valve guide clearance at maximum lift. Remove material from the top,of valve guides to provide a minimum of .030″ clearance. 3. Check for valve spring coil bind at maximum valve lift. Clearance at every coil should be at least .015″4. Be certain that cam and/or rocker arms rotate
freely in head or block. Remove material from head,block, or rocker arms where necessary.5. Engine and cam life depend on proper installation. New or reground followers should be used when installing WEB-CAM profiles. Apply the provided
assembly lube to cam lobe and follower surfaces

2005 Honda CRF450X OWNER'S MANUAL AND COMPETITION HANDBOOK

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Filed Under (Honda) by admin on 04-12-2010

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Starting & Stopping the Engine Always follow the proper starting procedure described below. Your CRF can be started with the transmission in gear by pulling in the clutch lever before operating the kickstarter or start button. Preparation Make sure that the transmission is in neutral. Turn the fuel valve ON. Fuel Valve Starting Procedure Always follow the proper starting procedure described as follow. 5. Warm up the engine; don’t operate the throttle. 6. About 15 seconds after the engine starts, push the choke knob back all the way to fully OFF. If idling is unstable, open the throttle slightly. Extended use of the choke may impair piston and cylinder wall lubrication and damage the engine. HighAirTemperature 35°C (95°F) or above 1. Turn the fuel valve (1) ON. 2. Do not use the choke. 3. Keep the throttle fully closed. 4. Start the engine following step 4 under “Normal Air Temperature.” LowAirTemperature 10°C (50°) or below 1. If the temperature is below 32°F (0°C), open the throttle two or three times. (The engine requires a richer mixture for starting in cold weather. When the throttle is so opened, the accelerator pump will feed extra fuel to the cylinder, thereby facilitating starting in cold weather.) 2. Follow steps 1-5 under “Normal Air Temperature.” 3. Continue warming up the engine until it runs smoothly and responds to the throttle when the choke knob is pushed back all the way to fully OFF. Extended use of the choke may impair piston and cylinder wall lubrication and damage the engine. (cont’d) NOTICE NOTICE Basic Operating Instructions 15 (1) fuel valve The three-way fuel valve is used to control the flow of fuel from the fuel tank to the carburetor. ON -Turning the fuel valve ON before attempting to start the engine allows fuel to flow from the fuel tank to the carburetor. OFF -Turning the fuel valve OFF prevents the flow of fuel from the fuel tank to the carburetor. RES -Turning the fuel valve to RES allows fuel to flow from the reserve fuel supply to the carburetor. (1) fuel valve (2) choke knob Check the engine oil, transmission oil and coolant levels before starting the engine (pages 44,47,48). To restart a warm engine, follow the procedure for”High Air Temperature.” NormalAirTemperature 10°C-35°C (50°F-95°F) 1. Turn the fuel valve (1) ON. 2. Pull the choke knob (2) fully ON, if the engine is cold. 3. Keep the throttle fully closed. 4. Pull the clutch lever all the way in, and depress the start button. Or operate the kickstarter to start the engine. Starting from the top of the stroke, kick through to the bottom with a rapid, continuous motion. Do not operate the throttle. Allowing the kickstarter to snap back freely against the pedal stop can damage the engine

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