Cylinder Head Assembly

Tightening Specifications
1. Tighten the cylinder head bolts in sequence on the first pass.
Tighten the bolts in sequence on the first pass to 30 N.m (22 lb ft).
2. Use the J 36660 in order to tighten the cylinder head bolts in sequence on the final pass.
- Tighten the long bolts (1, 4, 5, 8, and 9) on the final pass in sequence to 75 degrees.
- Tighten the medium bolts (12 and 13) on the final pass in sequence to 65 degrees.
- Tighten the short bolts (2, 3, 6, 7,10, and 11) on the final pass in sequence to 55 degrees.






Inspection
Measure the cylinder head for warpage with a straight edge and feeler gauge.
- A cylinder head block deck with warpage in excess of 0.10 mm (0.004 in) within a 152.4 mm (6.0 in) area must be repaired or replaced.
- A cylinder head exhaust manifold deck with warpage in excess of 0.5 mm (0.002 in) within a 152.4 mm (6.0 in) area must be repaired or replaced.
- A cylinder head intake manifold deck with warpage in excess of 0.10 mm (0.004 in) within a 152.4 mm (6.0 in) area must be repaired or replaced.