Operation CHARM: Car repair manuals for everyone.

System Specifications

Cylinder Head Bolts








New cylinder head bolts must be installed. They are torque-to-yield designed and cannot be reused.

First pass 40 Nm (30 lb-ft).
Second pass Tighten bolts 90°
Third pass Loosen one full turn
Fourth pass 40 Nm (30 lb-ft).
Fifth pass Tighten 90°
Final pass Tighten 90°

The cylinder head must not have depressions deeper than 0.0254 mm (0.001 in) across a 38.1 mm (1.5 in) square area, or scratches more than 0.0254 mm (0.001 in).

Lower Intake Manifold Bolts 10 Nm (89 lb-in).





Upper Intake Manifold Bolts 10 Nm (89 lb-in).





Camshaft Bearing Cap Bolts 10 Nm (89 lb-in).








Exhaust Manifold Studs 11 Nm (8 lb-ft).
Discard the studs.

Exhaust Manifold Nuts
Discard the nuts.








First pass 25 Nm (18 lb-ft).
Final pass 25 Nm (18 lb-ft).