Cylinder Head Assembly

CYLINDER HEAD





CYLINDER HEAD BOLTS






NOTE: 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, the bolt should be replaced.











NOTE: The four smaller cylinder head mounting bolts require sealant to be added to them before installing. Failure to do so may cause leaks.

Lubricate the cylinder head bolt threads with clean engine oil and install the eight M11 bolts.
Coat the four M8 cylinder head bolts with Mopar(R) Lock & Seal Adhesive then install the bolts.

NOTE: The cylinder head bolts are tightened using an angle torque procedure, however, the bolts are not a torque-to-yield design.

Tighten the bolts in sequence using the following steps and torque values :
- 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 thru 12 to 14 Nm (10 ft. lbs.).
- Step 3: Tighten bolts 1-8, 90°.
- Step 4: Tighten bolts 1-8, 90°, again. Tighten bolts 9-12, 26 Nm (19 ft. lbs.)

CAMSHAFT BEARING CAPS





NOTE: Position the right side camshaft so that the camshaft sprocket dowel is near the 10 o'clock position and the left side camshaft so that the camshaft sprocket dowel is near the 1 o'clock position. This will place the camshaft at the neutral position easing the installation of the camshaft bearing caps.

Install the camshaft bearing caps, hand tighten the retaining bolts.

NOTE: Caps should be installed so that the stamped numbers on the caps are in numerical order, (1 through 4) from the front to the rear of the engine. All caps should be installed so that the stamped arrows on the caps point toward the front of the engine.

Working in 1/2 turn increments, tighten the bearing cap retaining bolts starting with the middle cap working outward.
Tighten the camshaft bearing cap retaining bolts to 11 Nm (100 in. lbs.).

CAMSHAFT GEAR

Using the Spanner Wrench 6958 with adapter pins 8346, tighten the camshaft sprocket retaining bolt to 122 Nm (90 ft. lbs.).

INTAKE MANIFOLD





Install the intake manifold retaining bolts and tighten in sequence shown to 12 Nm (105 in. lbs.).

EXHAUST MANIFOLD

Starting at the center arm and working outward, tighten the bolts and nuts to 25 Nm (18 ft. lbs.).