Timing Component Alignment Marks: Service and Repair

Camshaft Setting Tool 303-530:

Crankshaft Setting Peg 303-531/645:

Setting engine timing after cylinder head service or replacement of a timing chain requires the use of special tools.
WARNING Failure to use the required special tools will cause severe engine damage.




- Remove bolt [1], which secures the crankshaft position sensor to the flywheel housing. Remove sensor and allow it to hang free under the engine.
- Remove the access grommet [2] (for torque converter bolts) from the housing.
- Install the damper securing bolt (old one) to the crankshaft, hand-tight only.



CAUTION: Do not rotate the crankshaft counterclockwise. The timing chains may bind causing engine damage.
- Rotate the crankshaft until the triangular arrow indent on the drive plate is visible through the access hole; confirm that the timing flat on each camshaft is uppermost.



- Install the crankshaft setting peg 303-531 [1]. Position the crankshaft so that the setting peg [1] engages fully into the timing slot.
- Install and tighten the bolt [2] to secure the setting peg.
- Remove the damper securing bolt from the crankshaft.



- Install the camshaft locking tool 303-530, aligning the shafts slightly as necessary.

Expanded procedure(s) for servicing timing chain(s) can be found at "Engine : Timing Components : Timing Chain". Service and Repair