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Home >> Cadillac >> 1983 >> Eldorado 5.7 N >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.7L V8 Diesel - VIN [N] >> Overhaul >> Valve Lifter Bleed Down

Valve Lifter Bleed Down

  1. Before installing any rocker arm assemblies, rotate crankshaft to position No. 1 cylinder at 32° BTDC. This is 2.0" (50 mm) beyond end of timing indicator. If necessary, remove No. 1 glow plug to determine correct piston position.
    CAUTION: Use only hand tools to tighten rocker arm pivot bolts to avoid engine damage.
  2. Install No. 5 cylinder rocker arms, pivot and bolts. Tighten bolts alternately between intake and exhaust valves until exhaust valve begins to open, then stop. Install remaining rocker arms, pivots and bolts. Tighten the bolts SLOWLY, allowing lifters to bleed down.
  3. Watch No. 3 and No. 8 intake valves as pivot bolts are being tightened. DO NOT  tighten No. 3 and No. 8 intake valve pivots beyond point that valve would be fully open (indicated by strong resistance while torqueing pivot bolts). Going beyond this will bend the push rod.
  4. Finish tightening No. 5 cylinder pivot bolts slowly. DO NOT  tighten pivot bolts beyond point that valve would be fully open (indicated by strong resistance while tightening pivot bolts). Torque pivot bolts to 25 ft. lbs. (39 N.m).
CAUTION: DO NOT  turn crankshaft for at least 45 minutes or damage to valve train will occur.
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