Engine Flywheel Installation

Tools Required 

J 36660-A  Torque Angle Meter

1. Install the flywheel to the crankshaft. Align the flywheel-to-engine marks.
NOTE: Apply the proper amount of the sealant to the fastener when assembling this component. Excessive use of the sealant can prohibit the component from being assembled properly or allow the fastener to loosen. A component or fastener that is not assembled properly can loosen or fall off leading to extensive engine damage.
Fig 1: Applying Sealant To Flywheel Retaining Bolt Threads
Courtesy of GENERAL MOTORS CORP.
2. Apply GM P/N 12345493 (Canadian P/N 10953488) or the equivalent, to the flywheel retaining bolt threads (1).
Fig 2: Flywheel Retaining Bolts
Courtesy of GENERAL MOTORS CORP.
NOTE: Refer to Fastener Notice in Cautions and Notices.
3. For vehicles equipped with an Automatic Transmission, install the flywheel retaining bolts (1-8) to the crankshaft.

   Tighten:  Tighten the 8 flywheel retaining bolts in the sequence shown for Automatic Transmission to 83 N.m (61 lb ft).

Fig 3: Flywheel Retaining Bolts
Courtesy of GENERAL MOTORS CORP.
4. For vehicles equipped with a Manual Transmission, install the flywheel retaining bolts to the crankshaft and torque the bolts in 2 steps.

   1st Step-Tighten:  Tighten the eight flywheel retaining bolts in the sequence shown for Manual Transmission to 49 N.m (36 lb ft).

Fig 4: Tighten flywheel bolts 90 degrees
Courtesy of GENERAL MOTORS CORP.
5. Perform the final torque on the manual transmission flywheel retaining bolts.

   2nd Step-Tighten:  After the proper torque of 49 N.m (36 lb ft) has been reached, use a J 36660-A  and tighten the flywheel bolts an additional 90 degrees.