Chain And Sprockets, Timing: Removal: Removal

WARNING: This page is about a different car, the 2012 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

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

Courtesy of CHRYSLER GROUP, LLC

1 - LEFT CYLINDER HEAD

2 - RIGHT CYLINDER HEAD

Fig 2: Timing Chain Cover & Crankshaft Timing Marks

Courtesy of CHRYSLER GROUP, LLC

1 - TIMING CHAIN COVER

2 - CRANKSHAFT TIMING MARKS

Disconnect the negative battery cable.
Drain the cooling system. Refer to STANDARD PROCEDURE .
Remove right and left cylinder head covers. Refer to COVER(S), CYLINDER HEAD, REMOVAL, 3.7L and COVER(S), CYLINDER HEAD, REMOVAL, 3.7L .
Remove the radiator fan shroud. Refer to FAN, COOLING, ELECTRIC, REMOVAL .
Rotate engine until the 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). Refer to Fig 1. Refer to Fig 2.

Fig 3: Access Plugs From Left And Right Cylinder Heads
Courtesy of CHRYSLER GROUP, LLC

1 - RIGHT CYLINDER HEAD ACCESS PLUG

2 - LEFT CYLINDER HEAD ACCESS PLUG
Remove the power steering pump. Refer to PUMP, REMOVAL .
Remove the access plugs from the left (2) and right (1) cylinder heads for access to the chain guide fasteners. Refer toFig 3.
Remove the oil fill housing to gain access to the right side tensioner arm fastener.

Remove crankshaft damper and the timing chain cover. Refer to DAMPER, VIBRATION, REMOVAL, 3.7L . Refer to COVER(S), ENGINE TIMING, REMOVAL, 3.7L .

Fig 4: Collapsing & Pinning Primary Chain Tensioner

Courtesy of CHRYSLER GROUP, LLC

1 - PRIMARY CHAIN TENSIONER

2 - ADJUSTABLE PLIERS

3 - SPECIAL TOOL 8514

Collapse and pin primary chain tensioner (1).
CAUTION:
Plate behind left secondary chain tensioner could fall into oil pan. Therefore, cover pan opening.

Remove secondary chain tensioners.

Fig 5: Cylinder Head, Camshaft Position Sensor & Bolt

Courtesy of CHRYSLER GROUP, LLC

1 - CYLINDER HEAD

2 - CAMSHAFT POSITION SENSOR

3 - BOLT

Remove camshaft position sensor bolt (3) and remove sensor (2). Refer toFig 5.

Fig 6: Camshaft & Camshaft Holder
Courtesy of CHRYSLER GROUP, LLC

1 - Camshaft hole

2 - Special Tool 8428A

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 Camshaft Holder (special tool #8428A, Holder, Camshaft) (2), remove the left camshaft sprocket. Slowly rotate the camshaft approximately 15 degrees clockwise to a neutral position.
While holding the right camshaft steel tube with Camshaft Holder (special tool #8428A, Holder, Camshaft) (2), remove the left 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 primary chain tensioner.