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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 832 (Engine Mechanical (Repair Instructions 1 Of 3) - 5.7L) >> Repair Instructions (On-Vehicle & Off-Vehicle - Part 1 >> On-Vehicle Repair Instructions >> Engine Flywheel Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: For manual transmission applications, note the position and direction of the engine flywheel before removal. The flywheel does not use a locating pin for alignment. Mark or scribe the end of the crankshaft and the flywheel before component removal. The engine flywheel must be reinstalled to the original position and direction. The engine flywheel will not initially seat against the crankshaft flange, but will be pulled onto the crankshaft by the engine flywheel bolts. This procedure requires a 3 stage tightening process.

DO NOT remove the prop shaft hub or flex plate from the automatic transmission engine flywheel. The flywheel, prop shaft hub, and flex plate are balanced as an assembly. If service is required, the entire flywheel assembly should be replaced.

    Fig 1: Manual Transmission Engine Flywheel & Bolts
    GM651890Courtesy of GENERAL MOTORS CORP.
  1. If equipped with a manual transmission, align the mark or scribe on the crankshaft with the mark or scribe on the existing flywheel.

    Refer to Engine Balancing

    2. Fig 2: Automatic Transmission Engine Flywheel & Bolts
    GM651889Courtesy of GENERAL MOTORS CORP.
  2. Install the engine flywheel.
    3. Fig 3: Identifying Flywheel Bolt Tightening Sequence
    GM63174Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489), or equivalent to the threads of the flywheel bolts.
  4. Install the engine flywheel bolts until snug.

    Tighten: 

    1. Tighten the engine flywheel bolts a first pass in sequence to 20 N.m (15 lb ft).
    2. Tighten the engine flywheel bolts a second pass in sequence to 50 N.m (37 lb ft).
    3. Tighten the engine flywheel bolts a final pass in sequence to 100 N.m (74 lb ft).

  5. Install the driveline support, if equipped with a automatic transmission. Refer to Driveline Support Assembly Replacement (Automatic Transmission) or Driveline Support Assembly Replacement (Manual Transmission) in Propeller Shaft.
  6. Install the clutch assembly, if equipped with a manual transmission. Refer to Clutch Assembly Replacement in Clutch.
  7. Install the catalytic converter. Refer to Catalytic Converter Replacement in Engine Exhaust.
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