Diesel Data: Automotive Repair

Tightening Torques and Sequences


Cylinder Head Torque and Sequence
Tighten the cylinder head bolts in sequence to 39 N-m (4.0 kgf-m, 29 lbf-ft).



After torquing, tighten all cylinder head bolts in two steps (90 ° per step) using the sequence shown. If you are using a new cylinder head bolt, tighten the bolt an extra 90 °.


Head Bolt Reuse/Replace
Measure the diameter of each cylinder head bolt at point A and point B.
If either diameter is less than 10.6 mm (0.42 in.), replace the cylinder head bolt.





Intake Manifold Torque and Sequence





Camshaft Bearing Cap Torque and Sequence






Tighten the bolts to the specified torque.
NOTE: If the engine does not have bolt 21, skip it and continue the torque sequence.


VTC Actuator Mounting Bolt:
12 x 1.25 mm 113 N-m (11.5 kgf-m, 83 lbf-ft)


Exhaust Camshaft Sprocket Mounting Bolt:
10 x 1.25 mm 72 N-m (7.3 kgf-m, 53 lbf-ft)