Cylinder Head Assembly: Specifications

Cylinder Head:

Cylinder Head

Cylinder Head Surface Variation - Warpage

Check cylinder head for flatness.
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.





Camshaft Bearing Cap - Bolts 12 Nm (105 In. Lbs)

Cylinder Head Bolt Re-usability





NOTE: 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

Necking can be checked by holding a straight edge against the threads (3). If all the threads do not contact the scale (2), the bolt must be replaced.





Cylinder Head - Bolts

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.)

Exhaust Manifold - Bolts 23 Nm (200 In. Lbs.)
Tighten bolts starting at the center working outward

Camshaft Sprocket - Bolts 28 Nm (250 In. Lbs.)








Intake Manifold (Upper and Lower) - Bolts 12 Nm (105 In. Lbs.)