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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 >> Valve Springs >> Removal

Valve Springs: Removal

  1. Remove valve cover. Remove spark plug, rocker arm assembly and push rod of cylinder to be serviced. Install air hose and adapter in spark plug hole, and apply air pressure. Do not remove air pressure until all components are reinstalled.
  2. Use valve spring compressor to compress valve spring, and retainer locks. Release spring compressor and remove spring retainer (or rotator), shield, spring, and oil seal. See Fig 1.
Fig 1: Exploded View of Valve Spring Assembly
G91187
NOTE: Damper is not used on 4.1L engines.
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