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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Engine Mechanical - 4.6L (LH2) - 3 Of 5) >> Off-Vehicle Repair Instructions (Part 2) >> Engine Block Cleaning and Inspection - Upper - Off Vehicle >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove any old thread sealant and gasket material or sealant.
  2. Clean all the following areas with solvent:
    • Sealing surfaces
    • Cooling passages
    • Oil passages
    • Bearing journals
  3. Clean all threaded and through holes with solvent.
  4. Prior to the application of RTV sealant GM P/N 12378521 (Canadian P/N 88901148) or equivalent to the engine block seal groove clean the groove and mating surfaces of the upper engine block and the mating surface of the lower crankcase with cleaner solvent GM P/N 12378392 or 12346139 (Canadian P/N 88901247).
    5. CAUTION: Refer to Safety Glasses Caution .
  5. Dry the upper engine block with compressed air.
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