CHAIN and SPROCKETS, Timing: Removal: Removal
WARNING: This page is about a different variant/trim than selected.
- Disconnect negative cable from battery.
- Drain cooling system. Refer to Cooling - Standard Procedure .
- Remove right and left cylinder head covers. See Engine/Cylinder Head/COVER(S), Cylinder Head - Removal .
- Remove radiator fan. Refer to Cooling/Engine/FAN, Cooling - Removal .
- Rotate engine until timing mark on crankshaft damper aligns with TDC mark on timing chain cover
(#1 cylinder exhaust stroke).
1 - LEFT CYLINDER HEAD 2 - RIGHT CYLINDER HEAD - Align the camshaft sprocket, so the "V8" marks are at the 12 o'clock position
.
1 - RIGHT CYLINDER HEAD ACCESS PLUG 2 - LEFT CYLINDER HEAD ACCESS PLUG - Remove power steering pump.
- Remove access plugs (2) from left and right cylinder heads for access to chain guide fasteners .
- Remove the oil fill housing to gain access to the right side tensioner arm fastener.
- Remove crankshaft damper and timing chain cover. See Engine/Engine Block/DAMPER, Vibration - Removal and Engine/Valve Timing/COVER(S), Engine Timing - Removal .
1 - PRIMARY CHAIN TENSIONER 2 - ADJUSTABLE PLIERS 3 - SPECIAL TOOL 8514 - Collapse and pin primary chain tensioner
.CAUTION: Plate behind left secondary chain tensioner could fall into oil pan. Therefore, cover pan opening.
- Remove secondary chain tensioners.
- Remove camshaft position sensor from right cylinder head
.
1 - CAMSHAFT SPROCKET AND CHAIN 2 - ADJUSTABLE PLIERS 3 - CAMSHAFT CAUTION: Care should be taken not to damage the camshaft target wheel. Do not hold the target wheel while loosening or tightening the camshaft sprocket. Do not place the target wheel near a magnetic source of any kind. A damaged or magnetized target wheel could cause a vehicle no start condition.CAUTION: Do not forcefully rotate the camshafts or crankshaft independently of each other. Damaging intake valve to piston contact will occur. Ensure the negative battery cable is disconnected and isolated to guard against accidental starter engagement. - Remove left and right camshaft sprocket bolts.
- While holding the left camshaft steel tube with adjustable pliers,
remove the left camshaft sprocket. Slowly rotate the camshaft approximately 15 degrees clockwise to a neutral position.
1 - ADJUSTABLE PLIERS 2 - CAMSHAFT DOWEL - While holding the right camshaft steel tube with adjustable pliers, remove the right camshaft sprocket. Slowly rotate the camshaft approximately 45 degrees counterclockwise to a neutral position.
- Remove idler sprocket assembly bolt.
- Slide the idler sprocket assembly and crank sprocket forward simultaneously to remove the primary and secondary chains.
- Remove both pivoting tensioner arms and chain guides.
- Remove chain tensioner.