Cylinder Head Bolt Torque Sequence and Specification for ZD30DDT Engine:
Initial Tightening Stage:
Tighten all bolts to 40 Nm (29 ft-lbs).
Second Stage:
Tighten all bolts to 80 Nm (59 ft-lbs).
Third Stage:
Loosen all bolts completely in the reverse sequence.
Fourth Stage:
Tighten all bolts to 40 Nm (29 ft-lbs).
Fifth Stage:
Tighten all bolts to 80 Nm (59 ft-lbs).
Final Stage:
Tighten all bolts by an additional 90 degrees (quarter turn).
Finally, tighten all bolts by another 90 degrees (quarter turn).
Let us know if you need anything else.
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Thursday, February 12th, 2015 AT 5:50 AM