System Specifications

CYLINDER HEAD BOLT TORQUE/SEQUENCE





Tighten the cylinder head bolts in the sequence shown. Using the 4 step torque-turn method, tighten according to the following torque values:
- Step 1: All to 61 Nm (45 ft. lbs.)
- Step 2: All to 88 Nm (65 ft. lbs.)
- Step 3: All (again) to 88 Nm (65 ft. lbs.)
- Step 4: All an additional 1/4 turn. Do not use a torque wrench for this step.

NOTE: Bolt torque after 90 ° turn should be over 122 Nm (90 ft. lbs.) in the tightening direction.

CYLINDER HEAD BOLT RE-USABILITY

The Cylinder head bolts should be examined BEFORE reuse. If the threads are necked down, the bolts should be replaced. Necking can be checked by holding a scale or straight edge against the threads. If all the threads do not contact the scale the bolt should be replaced.

CYLINDER HEAD SURFACE VARIATION

Figure 108-Checking Cylinder Head Flatness:

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 inch) MAX is a combined total dimension of the stock removal limit from cylinder head and block top surface (Deck) together.

CAMSHAFT SPROCKET/GEAR SPECIFICATIONS

Right Side 102 Nm (75 ft. lbs.) Plus 1/4 turn
Left Side 115 Nm (85 ft. lbs.) Plus 1/4 turn

EXHAUST MANIFOLD SPECIFICATIONS

Exhaust Manifold to Cylinder Head Bolts 23 Nm (200 inch lbs.)
Exhaust Manifold to Catalytic Converter Clamp 11 Nm (100 inch lbs.)

INTAKE MANIFOLD SPECIFICATIONS




Intake Manifold-Lower Bolts 2X Nm (250 inch lbs.)




Intake Manifold Plenum-Upper Fasteners 12 Nm (105 inch lbs.)