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Home >> GMC >> 1983 >> Forward Control 5.7 M, Automatic, 400/M40 >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 4.1L 6-CYL - VIN [D] >> Removal & Installation >> Cylinder Head >> Removal

Cylinder Head: Removal

  1. Drain cooling system and disconnect upper radiator hose at engine. Remove exhaust manifold. Remove rocker arm covers. Remove rocker arm assemblies and push rods in sequence, for reinstallation in original locations.
  2. Disconnect and label all wires and vacuum hoses that may interfere with head removal. If equipped, disconnect air injection hose at check valve. Remove cylinder head.
CAUTION: Do not apply gasket sealer to composition steel asbestos gaskets.
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