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88. Engine Flywheel Installation



Engine Flywheel Installation





Important: The flex plate does not use a locating pin for alignment, and will not initially seat against the crankshaft flange, but will be pulled onto the crankshaft by the bolts. This procedure requires a 3 stage tightening process.

1. Install the automatic transmission flex plate to the crankshaft.
2. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489), or equivalent, to the threads of the flywheel bolts.





Notice: Refer to Fastener Notice in Service Precautions.

3. Install the engine flex plate bolts.
A. Tighten the engine flex plate bolts (1-6) a first pass in sequence to 20 Nm (15 ft. lbs.).
B. Tighten the engine flex plate bolts (1-6) a second pass in sequence to 50 Nm (37 ft. lbs.).
C. Tighten the engine flex plate bolts (1-6) a final pass in sequence to 100 Nm (74 ft. lbs.).
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