Timing Components: Service and Repair

ENGINE TIMING VERIFICATION

Special Tools:











CAUTION: The magnetic timing wheels (1) must not come in contact with magnets (pickup tools, trays, etc.) or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to the camshaft position sensor.






Correct timing is critical for the NON free-wheeling designed, 3.6L engine. Engine timing can be verified by using the following procedures:

1. Remove the upper intake manifold and cylinder head covers Cylinder Head Cover(s) - Removal
2. Remove the spark plugs.
3. Mount Dial Indicator Set (1) to a stationary point on the engine. Rotate the crankshaft CW to place the number one piston at TDC on the exhaust stroke.





4. While maintaining this alignment, verify that the arrows on the left side cam phasers (1) point toward each other and are parallel to the valve cover sealing surface (2) and that the right side cam phaser arrows (3) point away from each other and the scribe lines (5) are parallel to the valve cover sealing surface (4).





5. There should be 12 chain pins (2) between the exhaust cam phaser triangle marking (1) and the intake cam phaser circle marking (3).
6. If the engine timing is not correct, proceed to Timing Chain and Sprockets for service procedures Timing Chain & Sprockets - Removal