Important: Note the position and direction of the engine flywheel before removal.
The flywheel 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 engine flywheel bolts. This procedure requires a three stage tightening
process.
- Install the manual transmission engine flywheel to the crankshaft, if
applicable.
- Install the automatic transmission engine
flywheel to the crankshaft, if applicable.
- 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 the Preface section.
- Install the engine flywheel bolts.
Tighten
- Tighten the engine flywheel bolts first pass in sequence to 20 N·m
(15 lb ft).
- Tighten the engine flywheel bolts second pass in sequence to 50 N·m
(37 lb ft).
- Tighten the engine flywheel bolts final pass in sequence to 100 N·m
(74 lb ft).