Cylinder Head Assembly: Specifications

CYLINDER HEAD ASSEMBLY

NOTE: Before installing the cylinder head bolts, lubricate the threads with clean engine oil.










If your bolt has the short head, use the following torque specifications:
First: All 30 Nm (25 ft. lbs.)
Second: All 61 Nm (45 ft. lbs.)
Third: All 61 Nm (45 ft. lbs.)
Fourth: All an additional 90°

CAUTION: Do not use a torque wrench for the Fourth step.

If your bolt has the long head, use the following torque specifications:
First: All 30 Nm (25 ft. lbs.)
Second: All 73 Nm (54 ft. lbs.)
Third: All 73 Nm (54 ft. lbs.)
Fourth: All an additional 90°

CAUTION: Do not use a torque wrench for the Fourth step.

BOLT RE-USABILITY






The cylinder head bolts 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.






SURFACE VARIATION

Cylinder head must be flat within 0.1 mm (0.004 in.).






CAMSHAFT BEARING CAP






Install intake and exhaust camshaft bearing caps and slowly tighten bolts to 9.5 Nm (85 in. lbs.)

NOTE: If the front camshaft bearing cap is broken, the cylinder head MUST be replaced.






Install the front intake and exhaust bearing cap and tighten bolts 25 Nm (18 ft. lbs.)

INTAKE MANIFOLD

Intake Manifold Specifications

EXHAUST MANIFOLD

Exhaust Manifold Specifications

CAMSHAFT GEAR/SPROCKET

Camshaft Gear/Sprocket Specifications