Torque Specifications

TORQUE SPECIFICATIONS
Cylinder Head Bolt

CAUTION: Always use new cylinder head bolts to ensure a leak-tight assembly. Torque retention with used bolts can vary, which may result In coolant or compression leakage at the cylinder head mating surface area.

Tighten in three steps:
- 20 Nm (15 Ft. Lbs.)
- 40 Nm (29 Ft. Lbs.)
- 50 Nm (37 Ft. Lbs.)

a. In sequence, loosen retaining bolts two or three revolutions and retighten bolts one at a time in the following manner:

CAUTION: Do not loosen all of the bolts at the same time, only work on one bolt at a time.

b. Long bolts:
- 40-50 Nm (30-36 Ft. Lbs.)
- Tighten an additional 175-185 degrees
- Go to next bolt in sequence

c. Short bolts:
- 20-30 Nm (15-22 Ft. Lbs.)
- Tighten an additional 175-185 degrees
- Go to next bolt in sequence

NOTE: When cylinder head retaining bolts have been tightened using the recommended procedure, it is not necessary to retighten bolts after extended engine operation. However, bolts can be checked for tightness if desired.