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.
2. Apply GM P/N 12345493

   (Canadian P/N 10953488) or the equivalent, to the flywheel retaining bolt threads (1).

   Fig 1: Applying Sealant Flywheel Retaining Bolt Threads

   Courtesy of GENERAL MOTORS CORP.
   NOTE: Refer to FASTENER NOTICE .
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 2: Identifying Automatic Transmission Flywheel Retaining Bolts Tightening Sequence

   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 3: Identifying Manual Transmission Flywheel Retaining Bolts Tightening Sequence

   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.

Fig 4: Tightening Flywheel Bolts Additional 90 Degrees

Courtesy of GENERAL MOTORS CORP.