Engine Torque Specifications

TORQUE





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.)


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.)


CAMSHAFT BEARING CAPS





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

MAIN BEARING CAPS

NOTE: Lubricate main bearing cap bolts with engine oil before installation.
The main bearing cap bolts must be tightened in the proper sequence. First the inner main cap bolts, secondly the windage tray bolts, and lastly the main cap tie (horizontal) bolts.
- Install the inside main bearing cap bolts and tighten to 20 Nm + 1/4 Turn (15 ft. lbs. + 1/4 Turn).
- Measure crankshaft end play Procedures.
- Install connecting rods and measure side clearance Service and Repair.
- Install windage tray. Lubricate bolts with engine oil and tighten to 27 Nm + 1/4 Turn (20 ft. lbs. + 1/4 turn).
- Install the main cap tie (horizontal) bolts and tighten to 28 Nm (250 in. lbs.).


EXHAUST MANIFOLD

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