Engine Flywheel Installation (LSA)

Special Tools 

J-42386-A  Flywheel Holding Tool

For equivalent regional tools, refer to Special Tools .

Fig 1: Manual Transmission Flywheel & Bolts
Courtesy of GENERAL MOTORS COMPANY
CAUTION:

This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

NOTE:

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.

1. Install the flywheel (2) to the crankshaft.
2. Apply threadlocker to the threads of the flywheel bolts (1). Refer to Adhesives, Fluids, Lubricants, and Sealers .
3. Install and hand tighten the NEW flywheel bolts (1).
Fig 2: Flywheel Holder
Courtesy of GENERAL MOTORS COMPANY
CAUTION:

Refer to Fastener Caution .

4. Install the J-42386-A  flywheel holding tool and bolts.

   Use 1 M10 -1.5 x 120 mm and 1 M10 -1.5 x 45 mm bolt for proper tool operation.

   Tighten the J-42386-A  flywheel holding tool and bolts to 50 N.m (37 lb ft).

5. Tighten the flywheel bolts (1).
   1. Tighten the bolts a first pass to 50 N.m (37 lb ft).
   2. Tighten the bolts a final pass an additional 45 degrees.
6. Remove the J-42386-A  flywheel holding tool