Engine Torque Specifications

TORQUE










CYLINDER HEAD TORQUE AND SEQUENCE






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.).
- 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.).
- Step 3 - Turn M12 cylinder head bolts, in sequence, 90 degrees and tighten M8 bolts to 34 Nm (25 ft. lbs.).

INTAKE MANIFOLD TORQUE AND 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

NOTE: The main cap crossbolts are torqued after final torque of the main cap bolts. Always use a new washer/seal on crossbolts.

1. Clean and oil all cap bolts. Install all main bearing caps (1). Install all cap bolts and alternately tighten in two steps using the following sequence.





2. Step 1 - 27 Nm ( 20 ft. lbs.).
3. Step 2 - Turn main cap bolts an additional 90°.
4. Install the crossbolts with new washer/gasket. Starting with crossbolt A, tighten each crossbolt to 28 Nm ( 21 ft. lbs.).
5. 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.

HARMONIC BALANCER TORQUE

CAUTION: To prevent severe damage to the Crankshaft, Damper or Damper Installer 8512-A, thoroughly clean the damper bore and the crankshaft nose before installing Damper.

1. Slide damper onto crankshaft slightly.

CAUTION: Special Tool 8512-A, is assembled in a specific sequence. Failure to assemble this tool in this sequence can result in tool failure and severe damage to either the tool or the crankshaft.

2. Assemble Damper Installer 8512-A as follows, thread nut (2) onto the bolt (3) then install the roller bearing (1) followed by the hardened washer (5) slides onto the threaded rod (3). Once assembled coat the threaded rod's threads with Mopar(R) Nickel Anti-Seize (or equivalent).
3. Using Damper Installer 8512-A, press damper onto crankshaft.
4. Install then tighten crankshaft damper bolt to 176 Nm (129 ft. lbs.).

FLEX PLATE 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

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.).

WATER PUMP TORQUE

Install water pump and mounting bolts. Tighten mounting bolts to 24 Nm (18 ft. lbs.).