Operation CHARM: Car repair manuals for everyone.

Tightening Torque & Sequence






TORQUE






CYLINDER HEAD









Cylinder Head - Bolts

Step 1: Tighten bolts 1-8 27 Nm (20 ft. lbs.).
Step 2: Verify that bolts 1-8, all reached 27 Nm (20 ft. lbs.), by repeating step-1 without loosening the bolts.
Tighten bolts 9 through 12 14 Nm (10 ft. lbs.).
Step 3: Tighten bolts 1-8 90 degrees.
Step 4: Tighten bolts 1-8 90 degrees, again.
Tighten bolts 9-12 26 Nm (19 ft. lbs.)

Head Bolt reuse/replace










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 (2) the bolts should be replaced.
Necking can be checked by holding a straight edge against the threads. If all the threads do not contact the scale (1), the bolt should be replaced.


INTAKE MANIFOLD






CAMSHAFT BEARING CAP






MAIN BEARING CAP






Hand tighten bolts 1D,1G and 1F until the bedplate contacts the block.
Tighten bolts 1A - 1J 54 Nm (40 ft. lbs.)
Tighten bolts 1 - 8 7 Nm (5 ft. lbs.)
Turn bolts 1 - 8 an additional 90°.
Tighten bolts A - E 27 Nm ( 20 ft. lbs.)

FLYWHEEL/FLEX PLATE






OIL PUMP






WATER PUMP