Cylinder Head Assembly: Specifications

Cylinder head must be flat within:
- Standard dimension = less than 0.05 mm (0.002 inch.)
- Service Limit = 0.2 mm (0.008 inch.)
- Grinding Limit = Maximum of 0.2 mm (0.008 inch.) is permitted.

CAUTION: 0.20 mm (0.008 in.) MAX is a combined total dimension of the stock removal limit from cylinder head and block top surface (Deck) together.


CYLINDER HEAD BOLTS





NOTE: The cylinder head bolts (4) are tightened using a torque plus angle procedure. The bolts must be examined BEFORE reuse. If the threads are necked down the bolts must be replaced

Necking can be checked by holding a straight edge against the threads. If all the threads do not contact the scale, the bolt must be replaced.





Tighten bolts in sequence shown, using the following steps and torque values:
- Step 1: Bolts 1-8 to 48 Nm (35 ft. lbs.)
- Step 2: Bolts 1-8 to 75 Nm (55 ft. lbs.)
- Step 3: Bolts 1-8 to 75 Nm (55 ft. lbs.)
- Step 4: Bolts 1-8 to +90° Turn Do not use a torque wrench for this step.
- Step 5: Bolts 9-11 to 28 Nm (250 in. lbs.)

CAMSHAFT BEARING CAPS





Tighten cam bearing cap bolts gradually in sequence shown to 12 Nm (105 in. lbs.).

CAMSHAFT SPROCKET

Tighten camshaft sprocket bolt to 28 Nm (250 In.Lbs.)

INTAKE MANIFOLD

Lower Intake Manifold





- Tighten in sequence shown, to 12 Nm (105 in. lbs.)

Upper Intake Manifold





- Tighten in sequence shown, to 12 Nm (105 in. lbs.)

EXHAUST MANIFOLD

Tighten bolts starting at the center working outward to 23 Nm (200 in. lbs.)