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The picture is an example of torque sequence.
First step--30 ft lbs
2nd--turn additional 90 degrees
3rd--turn additional 90 degrees.
The number one bolt you tighten first is outside middle on either head. The even number bolts as far as tightening, are on the inside of head. The odd number bolts are on the outside, as far as tightening. Inside and outside relative to engine.
Step: 1 - Torque to 25 ft/lbs Steps: 2 - Torque to 50
ft/lbs Steps: 3 - Torque to 50 ft/lbs Steps: 4 - Turn 90 degreesRecheck
final torque in sequence
Caution:Engine uses torque to yield head bolts
(TTY) that permanently stretch during initial installation. New head bolts
must be used when cylinder headis replaced or re installed to obtain
proper torque specification.
Perform it in 4 steps. first- 45 ft.lbs 2nd- 65 ft.lbs. 3rd- 65 ft lbs again. 4th- 1/4 turn more. After 4th step, you should have more than 90 ft.lbs. if not, replace bolt. Also make sure you do proper sequence, as well as check all bolts (unless you bought all new) to make sure they haven't been stretched. Use a straightedge and lay threads on it to make sure they all touch straightedge.
head tourque
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