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sprocket Direct Download speed 5787 Kb/s
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Filed Under (Pontiac) by admin on 25-08-2010
Note: GM does not provide timing chain timing marks, or information to perform timing chain service without the special tools shown in this procedure. Tools Required: – - J 36800 Camshaft Sprocket Timing Alignment Pin J 39579 Camshaft Sprocket Wrench Important: ^ ^ Before remove the timing chain, read the entire procedure. The timing chain on the engine is not to be replaced with the timing chain from any other model year. The timing sprockets are different on the engine and the shape of the links matches the sprockets. Engine damage may result if the wrong timing chain is used. The timing chain and the crankshaft sprocket must be marked in order to insure reassembly with the same side facing out at the time of reassembly. ^ Caution: Refer to Battery Disconnect Caution in Service Precautions. 1. Disconnect the negative battery cable. 2. Remove the engine front cover. Refer to Engine Front Cover Replacement. 3. Rotate the crankshaft clockwise (as viewed from the front of the engine, normal rotation) until the camshaft sprocket timing dowel pin holes line up with the holes in the timing chain housing. 4. The crankshaft sprocket keyway should point upwards and line up with the centerline of the cylinder bores. This is the Timed position. 5. Remove the timing chain guides. 6. Raise and support the vehicle. Refer to Vehicle Lifting. 7. Ensure that all of the slack in the timing chain is above the tensioner assembly. 8. Remove the timing chain tensioner. 9. The timing chain must be disengaged from any wear grooves in the tensioner shoe in order to remove the shoe. Slide a screwdriver blade under the timing chain while pulling the shoe outward. Notice: Do NOT attempt to pry the sprocket off the camshaft or damage to the sprocket or chain housing could occur. 10. If difficulty is encountered in removing the timing chain tensioner shoe, use the following procedure in order to remove the intake camshaft sprocket: 10.1. 10.2. 10.3. 10.4. Lower the vehicle. Hold the intake camshaft sprocket with the J 39579 and remove the sprocket bolt and washer. Remove the washer from the bolt and rethread the bolt back into the camshaft by hand (the bolt provides a surface to push against). Remove the intake camshaft sprocket. Use a three-jaw puller in the three relief holes in the sprocket.
Filed Under (Ford) by admin on 30-03-2011
NOTE: Removal and installation steps are the same for both camshaft and auxiliary shaft sprockets. Removal 1. Remove outer timing belt cover as outlined in this section. 2. Remove timing belt as outlined in this section. 3. Install Cam and Auxiliary Shaft Sprocket Tool T74P-6256-B on sprocket. Use tool to hold sprocket and remove bolt and washer. 4. Install threaded puller insert in Cam and Auxiliary Sprocket Tool T74P-6256-B and remove sprocket. 5. Remove tool from sprocket. Installation 1. Position key and sprocket on shaft. 2. Install Cam and Auxiliary Shaft Sprocket Tool T74P-6256-B, without threaded puller insert, on sprocket. 3. Install sprocket bolt and washer and tighten to 70-95 Nm (52-70 ft-lb). 4. Remove tool. 5. Install timing belt as outlined in this section. 6. Install outer timing belt cover as outlined in this section.
Filed Under (Jaguar) by admin on 16-10-2010
50. Install the timing chain guide. Tighten to 12 Nm . Install the crankshaft sprocket. 52. Install the chain tensioning tool 303-532 to the exhaust camshaft sprocket. Reposition the sprocket (and the VVT unit) for the most advantageous position for use of the tool. Remove the tool. 53. Install the primary timing chain. Install the primary chain over the crankshaft sprocket and the WT unit sprocket. There must be no slack on the drive side of the primary chain and the WT unit must not be rotated on the camshaft. 54. Install the timing chain tensioner blade. Tighten to 14 Nm . Install the primary chain tensioner assembly. Use a wedge 303-533 (or two if required) between the primary chain tensioner and tensioner blade, to take up the slack in the chain. Tighten to 12 Nm . 56. Tighten the exhaust camshaft sprocket securing bolt. Install the chain tensioner tool 303-532 to the sprocket holes. Apply force to the tool in an anti-clockwise direction to tension the chain on its drive side. While applying the opposing force to sprocket and chain, tighten the sprocket bolt. 57. Tighten the VVT unit bolt. While still applying the opposing force to the sprocket and chain (using 303-532), check that the wedges are still in place, tighten the VVT unit bolt. Remove the chain tensioning tool and the wedge(s). 58. Remove the camshaft setting tool. 59. Install the right-hand Variable Valve Timing (VVT) solenoid and bush carrier assembly. Install new ‘O’ ring seals. Tighten to 21 Nm . 60. Remove the crankshaft setting peg 303-645 from the crankshaft position sensor location. 61. Carry out a valve clearance check. For additional information, refer to[Valve Clearance Check]
Filed Under (Dodge) by admin on 26-08-2010
4. Align crankshaft sprocket timing mark to the mark on oil pump housing (Fig. 122). NOTE: Lubricate timing chain and guides with engine oil before installation. 5. Place left side primary chain sprocket onto the chain so that the timing mark is located in-between the two (plated) timing links (Fig. 122). 6. Lower the primary chain with left side sprocket through the left cylinder head opening. NOTE: The camshaft sprockets can be allowed to float on the camshaft hub during installation 1 – CAMSHAFT TIMING MARKS 2 ? CHAIN GUIDE 3 – CRANKSHAFT TIMING MARKS 4 – CRANKSHAFT SPROCKET 5 – CHAIN TENSKJNER ARM 6 – CHAIN TENSIONER 7 – CAMSHAFT TIMING MARK 8 – INTAKE CAMSHAFT SPROCKETS 9 – CHAIN GUIDES 10 – WATER PUMP SPROCKET 7. Loosely position left side camshaft sprocket over camshaft hub. 8. Align timing (plated) link tq the crankshaft sprocket timing mark (Fig. 122). 9. Position primary chain onto water pump drive sprocket. 10. Align right camshaft sprocket timing mark to the timing (plated) link on the timing chain (Fig. 122) and loosely position over camshaft hub. 11. Verify that all chain timing (plated) links are properly aligned to the timing marks on all sprockets (Fig. 122). 12. Install left side lower chain guide and tensioner arm (Fig. 120). Tighten attaching bolts to 28 Nm (250 in. lbs.). NOTE: Inspect oil ring on chain guide access plug before installing. Replace O-ring as necessary. 13. Install chain guide access plug to left side cylinder head (Fig. 120). Tighten plug to 20 Nm (15 ft lbs.)
Filed Under (Chevrolet) by admin on 10-08-2010
T] EXHAUST CAMSHAFT (RIGHT) T| INTAKE CAMSHAFT (RIGHT) T] SECONDARY TIMING BELT IDLER PULLEYS T) INTAKE CAMSHAFT (LEFT) 7] EXHAUST CAMSHAFT (LEFT) T] COOLANT PUMP T] INTERMEDIATE SHAFT BELT SPROCKET T] SERPENTINE BELT TENSIONER T| SECONDARY TIMING BELT TENSIONER PULLEY ??] GENERATOR ??] SECONDARY TIMING BELT TENSIONER ?2? SECONDARY TIMING BELT NOTE: START AT #7 AND INSTALL COUNTERCLOCIOMBE A LOCATION OF TIMING MARKS WITH CAM HOLD DOWN TOOLS J 38813 INSTALLED B FRONT COVER TIMING MARK C LOCATION OF TIMINS MARKS WITH DRIVE BELT IN- STALLED D LOCATION WHERE CAM HOLD DOWN TOOLS ARE INSTALLED RH EXHAUST CAMSHAFT SPROCKET RH INTAKE CAMSHAFT SPROCKET LH INTAKE CAMSHAFT SPROCKET LH EXHAUST CAMSHAFT SPROCKET PERMANENT MARKS PAINTED DOTS REMOVE PREVIOUS MARKS IF TIMING IS BEINS CHANGED AND MARK AGAIN IN THESE LOCATIONS TORSIONAL DAMPER INTERMEDIATE SHAFT SPROCKET NOTE: THIS TDC #1 EXHAUST. INTtRMEDlATE »HAFT BELT sprocket twno mark» at » o’clock (powtmo towards drain notch) NOTE : GM does not provide a timing mark diagram for belt installation without using the special tool(s) listed below. TOOLS REQUIRED: A J 38613 CamHold Down Tool A J 38614 Cam Sprocket Holding Tool NOTICE: If only one (1) bank is to be timed, make sure bank to bank earn timing relationship is one (1) revolution apart. Timing flats should be 180 degrees opposite (right bank versus left bank) when finally timed. 1. Remove all spark plugs. 2. Remove all camshaft sprockets. IMPORTANT: Remove oil from cam hold down tool bolt hole in carrier before installing and tightening bolt. 3. Rotate camshaft flats “up” and install J 38613. Tighten cam hold down tool bolt to 30 Nm (22 lb. ft). 4. Install all camshaft sprockets. 5. Timing belt by routing it around the idlers and sprockets. DO NOT bend, kink, or pry on belt as damage may occur. A. Start at intermediate cam sprocket and work counterclockwise. B. Make sure the belt is installed in direction of rotation. C. Engage teeth into all sprockets, place rubber hose behind belt at intermediate sprocket and accumulate slack at tensioner location. 6. Tensioner pulley to mounting base. A Use flat magnet, tape or cup plug to hold pivot tube in pulley during this step. Otherwise, pivot tube may fall out. A After starting pivot bolt, rotate arm counterclockwise to position square lug at 6 o’clock