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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 994 (Engine Mechanical - 6.6L (LLY)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Flywheel Replacement (Manual Transmission) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
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.
  1. If necessary, install a NEW pilot bearing.
  2. Fig 1: View Of Pilot Bearing
    GM688124Courtesy 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.
    IMPORTANT: When installing the flywheel, ensure that the tapered side of the teeth are facing the starter.
  3. Install the flywheel.
  4. Fig 2: View Of Flywheel & Bolts (Manual)
    GM688119Courtesy of GENERAL MOTORS CORP.
    NOTE: This component uses bolts with a pre-applied 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.
  5. Loosely install NEW flywheel bolts.
  6. NOTE: Refer to Fastener Notice in Cautions and Notices.
  7. Tighten the flywheel bolts in the proper sequence.

    Tighten: 

    1. Tighten the bolts a first pass to 79 N.m (58 lb ft).
    2. Tighten the bolts a second pass to 60 degrees using J 45059  .
    3. Tighten the bolts a final pass an additional 60 degrees using J 45059  .

  8. Fig 3: Flywheel Bolt Tightening Sequence
    GM663928Courtesy of GENERAL MOTORS CORP.
  9. Install the starter motor. Refer to Starter Motor Replacement (6.6L (LLY) Engine) in Engine Electrical.
  10. Install the clutch. Refer to Clutch Assembly Replacement in Clutch.