Cylinder Head Bolt Torque

CYLINDER HEAD BOLT TORQUE/SEQUENCE





Tighten the cylinder head bolts in the sequence shown in. Using the 4 step torque-turn method, tighten according to the following values:
- First All to 61 Nm (45 ft. lbs.)
- Second All to 88 Nm (65 ft. lbs.)
- Third All (again) to 88 Nm (65 ft. lbs.)
- Fourth + 1/4 Turn. Do not use a torque wrench for this step.

NOTE: Bolt torque after 1/4 turn should be over 90 ft. lbs. in the tightening direction. If not, replace the bolt.

CYLINDER HEAD BOLT RE-USABILITY





The cylinder head bolts are tightened using a torque plus angle procedure. The bolts must be examined BEFORE reuse. If the threads are necked down the bolts should be replaced. Necking can be checked by holding a scale or straight edge against the threads. If all the threads do not contact the scale the bolt should be replaced.