Timing Chain And Sprockets

Fig 1: Camshaft Sprocket V6 Marks, (#1 TDC Exhaust Stroke)

Courtesy of CHRYSLER LLC

1 - LEFT CYLINDER HEAD

2 - RIGHT CYLINDER HEAD

Fig 2: Engine Top Dead Center

Courtesy of CHRYSLER LLC

1 - TIMING CHAIN COVER

2 - CRANKSHAFT TIMING MARKS

Disconnect negative cable from battery.
Drain cooling system. Refer to STANDARD PROCEDURE .
Remove right and left cylinder head covers. See REMOVAL .
Remove radiator fan shroud. Refer to REMOVAL .
Rotate engine until timing mark on crankshaft damper (2) aligns with TDC mark on timing chain cover (2) and the camshaft sprocket "V6" marks are at the 12 o'clock position (No. 1 TDC exhaust stroke). See Fig 1 and Fig 2.

Fig 3: Cylinder Head Access Plugs
Courtesy of CHRYSLER LLC

1 - RIGHT CYLINDER HEAD ACCESS PLUG

2 - LEFT CYLINDER HEAD ACCESS PLUG
Remove power steering pump. Refer to REMOVAL .
Remove access plug from left and right cylinder heads for access to chain guide fasteners. See Fig 3.
Remove the oil fill housing to gain access to the right side tensioner arm fastener.

Remove crankshaft damper. See REMOVAL Remove timing chain cover. See REMOVAL .

Fig 4: Camshaft Position Sensor

Courtesy of CHRYSLER LLC

1 - CYLINDER HEAD

2 - CAMSAHFT POSITION SENSOR

3 - SCREW

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 (2). See Fig 4.

Fig 5: Special Tool 8428
Courtesy of CHRYSLER LLC

1 - Camshaft hole

2 - Special Tool 8428

CAUTION: Care should be taken not to damage camshaft target wheel. Do not hold target wheel while loosening or tightening 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 negative battery cable is disconnected to guard against accidental starter engagement.
Remove left and right camshaft sprocket bolts.
While holding the left camshaft steel tube with Camshaft Holder 8428 (2), remove the left camshaft sprocket. See Fig 5. Slowly rotate the camshaft approximately 5 degrees clockwise to a neutral position.
While holding the right camshaft steel tube with Camshaft Holder 8428 (2), remove the right camshaft sprocket.
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 primary chain tensioner.