Diesel Data: Automotive Repair

Valve Cover: Service and Repair

CYLINDER HEAD COVER

REMOVAL
1. Disconnect negative battery cable.
2. Disconnect ignition coil connector.





3. Disconnect spark plug wires and remove ignition coil (Fig. 37).
4. Disconnect PCV and make-up air hoses from cylinder head cover (Fig. 37).
5. Unclip wiring harness from cylinder head cover studs (Fig. 37).





6. Remove nut securing coolant return line bracket to cylinder head cover stud (Fig. 38).

NOTE: For reassembly purposes, note location of double ended studs.

7. Remove cylinder head cover fasteners.
8. Remove cylinder head cover from cylinder head.

INSTALLATION

CAUTION: Do not allow oil or solvents to contact the timing belt as they can deteriorate the rubber and cause tooth skipping.

1. Clean cylinder head cover sealing surface.








2. Install new cylinder head cover gasket (Fig. 39) and spark plug well seals (Fig. 40).





3. Apply Mopar Engine RTV GEN II at the camshaft cap corners and at the top edges of the 1/2 round seal (Fig. 41).

NOTE: Inspect cylinder head cover fastener seal washers. Replace as necessary.





4. Install cylinder head cover assembly to cylinder head. Install all fasteners, ensuring the double ended studs are in their proper location. Tighten fasteners in sequence shown in (Fig. 42). Using a 3 step torque method as follows:
a) Tighten all bolts to 4.5 Nm (40 inch lbs.).
b) Tighten all bolts to 9.0 Nm (80 inch lbs.).
c) Tighten all bolts to 12 Nm (105 inch lbs.).
5. Install nut securing coolant return line bracket to cylinder head cover stud (Fig. 38).
6. Clip wiring harness to cylinder head cover studs (Fig. 37).
7. Install ignition coil and connect spark plug wires. Tighten ignition coil fasteners to 12 Nm (105 inch lbs.) (Fig. 37).
8. Connect ignition coil connector.
9. If the PCV valve was removed from cylinder head cover, apply Mopar Thread Sealant with Teflon to threads and install valve to cylinder head cover. Tighten PCV valve to 8 Nm (70 inch lbs.).
10. Connect PCV and make-up air hoses to cylinder head cover (Fig. 37).
11. Connect negative battery cable.