Cylinder Head Assembly: Specifications

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





NOTE: The four M8 cylinder head mounting bolts (11 - 14) 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 ten M10 bolts.
Coat the four M8 cylinder head bolts with Mopar(R) Thread Sealant with PTFE then install the bolts.

NOTE: The cylinder head bolts are tightened using an angle torque procedure.

Tighten the bolts in sequence using the following steps and torque values:
- Tighten bolts 1 - 10 to 27 Nm (20 ft. lbs.).
- Verify that bolts 1 - 10 have all reached 27 Nm (20 ft. lbs.), by repeating step 1 without loosening the bolts.
- Tighten bolts 11 - 14 to 14 Nm (89 in. lbs.).
- Rotate bolts 1 - 10 an additional 90°.
- Rotate bolts 1 - 10 an additional 90° again.
- Tighten bolts 11 - 14 to 26 Nm (19 ft. lbs).


INTAKE MANIFOLD





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

CAMSHAFT BEARING CAPS





NOTE: Position the left side camshaft so that the camshaft sprocket dowel is near the 1 o'clock position and the right side camshaft so that the camshaft sprocket dowel is near the 10 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 and hand tighten the retaining bolts.
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.).

EXHAUST MANIFOLD

Right





Tighten all manifold bolts (1,2,3) starting at center and working outward to 25 Nm (18 ft. lbs.).

CAUTION: Over tightening heat shield fasteners, may cause shield to distort and/or crack.

Install exhaust manifold heat shield. Tighten fasteners (4,5) to 8 Nm (72 in. lbs.), then loosen 45 degrees.

Left





Tighten all manifold bolts (2,3) starting at center and working outward to 25 Nm (18 ft. lbs.).

CAUTION: Over tightening heat shield fasteners, may cause shield to distort and/or crack.

Install exhaust manifold heat shield. Tighten fasteners (4,5) to 8 Nm (72 in. lbs.), then loosen 45 degrees.