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Home >> Pontiac >> 1988 >> Firebird Base, 5.0 E, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.0L & 5.7L V8 - VINS F & 8 >> Adjustments >> Valve Adjustment >> Valve Arrangement

Valve Arrangement

E-I-I-E-E-I-I-E (Both banks, Front-to-rear).

  1. To adjust valves, rotate crankshaft to No. 1 firing position and adjust following valves:
    • Intake No. 1, 2, 5 and 7.
    • Exhaust No. 1, 3, 4 and 8.
  2. Adjust valves by backing off adjusting nut until lash is felt at push rod, then tighten until lash is removed. Tighten adjusting nut an additional one full turn.
  3. Rotate crankshaft to No. 6 firing position. Adjust following valves:
    • Intake No. 3, 4, 6 and 8.
    • Exhaust No. 2, 5, 6 and 7.
  4. When adjustment is complete, install valve covers. Start engine and check timing.
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