GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • EN-49074 Universal Valve Spring Compressor
    • EN-49075 Valve Spring Compressing Adapter

    Object Number: 2033829  Size: SH
  1. Install the valves, springs (2), retainers (1), and seals (3).

  2. Object Number: 2033828  Size: SH
  3. Install the EN-49074 compressor and EN-49075 adapter .
  4. Install the valve key.

  5. Object Number: 2033827  Size: SH

    Note: Do not scratch the valve tappet. Do not use gloves or tools, except special service tools.

  6. Install the valve tappet.
  7. Coat and lubricate the camshaft bearing and camshaft surfaces with clean engine oil.

  8. Object Number: 2033799  Size: SH
  9. Install the camshafts (2, 3) on the cylinder head.
  10. Install the camshaft bearing caps (1).
  11. Caution: Refer to Fastener Caution in the Preface section.

  12. Install the camshaft bearing cap bolts and tighten in this sequence (2)-(3)-(1)-(4).
  13. Tighten
    Tighten the camshaft bearing cap bolts to 10 N·m (89 lb in).

  14. Install the camshaft sprocket (4) and bolt (6)
  15. Tighten
    Tighten the camshaft sprocket bolt to 60 N·m (44 lb ft).