Engine Torque Specifications

TORQUE









Cylinder Head Tightening Sequence.

Note: Cylinder Head bolts are not to be reused.






5. Tighten the cylinder head bolts in three steps using the sequence provided :
- Step 1- Snug tighten M12 cylinder head bolts, in sequence, to 34 Nm (25 ft. lbs.) and M8 bolts to 20 Nm (15 ft. lbs.) torque.
- Step 2- Tighten M12 cylinder head bolts, in sequence, to 54 Nm (40 ft. lbs.) and verify M8 bolts to 20 Nm (15 ft. lbs.) torque.
- Step 3- Turn M12 cylinder head bolts, in sequence, 90 degrees and tighten M8 bolts to 34 Nm (25 ft. lbs.) torque.

Intake Manifold Tightening Sequence

Install intake manifold retaining bolts, and tighten in sequence from the middle bolts towards the outside in a crisscross pattern. Torque fasteners to 12 Nm (105 in. lbs.).

Main bearing Cap Torque and Sequence

Install all cap bolts and alternately tighten in two steps using the following sequence.






1. Step 1 - 27 Nm ( 20 ft. lbs.).
2. Step 2 - Turn main cap bolts an additional 90°.
3. Install the crossbolts with new washer/gasket. Starting with crossbolt A, tighten each crossbolt to 28 Nm ( 21 ft. lbs.).
4. Repeat crossbolt tightening procedure.

Rod Bearing Cap Torque

CAUTION: Connecting Rod Bolts Must Not Be Reused. Always replace the Rod Bolts whenever they are loosened or removed.

Lubricate bearing surfaces with clean engine oil. Tighten bolts to 21 Nm (15 ft. lbs.) plus a 90° turn.

Flex Plate or Flywheel Torque and Sequence






1. Position the flexplate or flywheel onto the crankshaft and install the bolts hand tight.
2. For automatic transmissions: Tighten the flexplate retaining bolts to 95 Nm (70 ft. lbs.).

Oil Pump Torque and Sequence






Tighten the oil pump retaining bolts to 28 Nm (250 in. lbs.).

Exhaust Manifold Torque and Sequence









Install manifold bolts and tighten to 25 Nm (18 ft. lbs.).