Engine Flywheel Installation (Manual Transmission)

Tools Required

• J 44643  Flywheel Hold Tool. See Special Tools .
• J 45059  Angle Meter

Fig 1: View Of Engine Flywheel Pilot Bearing
Courtesy of GENERAL MOTORS CORP.
1. Install the pilot bearing.
Fig 2: View Of Flywheel & Mounting Bolts (Manual)
Courtesy of GENERAL MOTORS CORP.
CAUTION: When removing, handling or installing this component wear protective gloves. The sharp edges on the component may be very sharp and may cause injury.
2. Install the flywheel.
NOTE: This component uses bolts with a preapplied molybdenum disulfide coating for thread lubrication. Do not remove the coating or use any additional lubricant. Improperly lubricated threads will adversely affect the bolt torque and clamp load. Improper bolt torque and clamp load can lead to engine damage.
NOTE: Refer to Fastener Notice .
3. Loosely install NEW flywheel bolts.
Fig 3: Locking Flywheel Using J 44643 (Manual Transmission)
Courtesy of GENERAL MOTORS CORP.
4. Install J 44643  to hold the flywheel from rotating. See Special Tools .
Fig 4: Flywheel Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
5. Use the following steps and the proper sequence to tighten the flywheel bolts:

   Tighten: 

   1. Tighten the flywheel bolts to 79 N.m (59 lb ft).
   2. Tighten the flywheel bolts to 60 degrees using the J 45059  .
   3. Tighten the flywheel bolts again to 60 degrees using the J 45059  .

6. Remove J 44643  . See Special Tools .