Torque

Cylinder Head

CAUTION: Always use new bolts.

NOTE: Lubricate bolts with clean engine oil.





Install new bolts. Refer to the location note made during removal and make sure the bolts are installed in the correct location.
1. Install the new long bolts.
2. Install the new short bolts.





Tighten the bolts in the sequence shown in three stages.
- Stage 1: Tighten the bolts to 20 Nm (15 ft. lbs.).
- Stage 2: Tighten the bolts to 40 Nm (30 ft. lbs.).
- Stage 3: Tighten the bolts to 50 Nm (37 ft. lbs.).

CAUTION: Do not loosen all of the bolts at one time. Each bolt must be loosened and final-tightened prior to working on the next bolt in the sequence.

NOTE: The short bolts are numbered 2, 4, 6 and 8 and the long bolts numbered 1, 3, 5 and 7.





Loosen, then tighten the bolts in the sequence shown:
- Tighten the short bolts to 25 Nm (18 ft. lbs.), then tighten an additional 180 degrees.
- Tighten the long bolts to 45 Nm (33 ft. lbs.), then tighten an additional 180 degrees.






Upper Intake Manifold
Position the upper intake manifold and tighten the upper intake manifold bolts in the sequence shown in two stages.
- Stage 1: Tighten the bolts to 6 Nm (53 inch lbs.).
- Stage 2: Tighten the bolts to 10 Nm (89 inch lbs.).

Lower Intake Manifold

NOTE: Make sure the bolts are installed in the correct location.





Loosely install the (A) long bolts and the (B) short bolts.





Tighten the bolts in the sequence shown in two stages.
- Stage 1: Tighten the bolts to 5 Nm (44 inch lbs.).
- Stage 2: Tighten the bolts to 12 Nm (9 ft. lbs.).





Intake Manifold Spacer
Install the intake manifold spacer assembly.
Tighten the bolts in two steps in the sequence shown.
- Stage 1: Tighten to 6 Nm (53 inch lbs.).
- Stage 2: Tighten to 10 Nm (89 inch lbs.).






LH Exhaust Manifold
Tighten to 25 Nm (18 ft.lb).






RH Exhaust Manifold
Tighten to 25 Nm (18 ft.lb).