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Home >> Chevrolet >> 1990 >> Caprice Base, 4.3 Z, 700R4/MD8 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.0L (307") V8 - VIN [Y] >> Removal & Installation >> Cylinder Head >> Inspection

Cylinder Head: Inspection

  1. Clean gasket surfaces. Check head and block gasket surface for warpage. Replace cylinder head if more than .006" (.15 mm) needs to be machined from original surface. Check for cracks and replace as necessary. Check head bolts for damage and stretching. Replace as necessary. Tap threads on bolts and in block.
  2. Clean push rods in solvent and blow out oil passage with compressed air. Check ends of push rod for excessive wear and runout. If runout exceeds .015" (.38 mm), replace push rod. Apply Molykote to rocker arm contact points and push rod ends during installation.
NOTE: DO NOT use any sealant on head gaskets.
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