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Home >> Oldsmobile >> 1984 >> Toronado 4.1 4 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.0L (307") V8 - VINS [Y,9] >> Removal & Installation >> Cylinder Head >> Inspection

Cylinder Head: Inspection

  1. Check head and block gasket surface for flatness. Gasket surface flatness is .003" (.08 mm) in any 6" (152 mm) length and .006" (.152 mm) overall. Replace if either head or block must be machined more than .006" (.152 mm).
  2. Clean push rods in solvent and blow out each oil passage with compressed air. Check ends of push rod for nicks, grooves or excessive wear. Ensure push rods are straight by checking with dial indicator and "V" block.
  3. If runout exceeds .015" (.38 mm), replace push rod. DO NOT attempt to straighten. Apply Molykote to rocker arm contact points and push rod ends during installation.
NOTE: DO NOT use sealer on head gaskets. Remove carbon deposits from combustion chamber before removing valves. Mark components for proper reassembly.
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