Valve Rocker Arm Cover Replacement - Right Side

Valve Rocker Arm Cover Replacement - Right Side

Removal Procedure

1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (Service and Repair) .
2. Remove the generator bracket. Refer to Generator Bracket and Engine Lift Bracket Replacement (LNJ) .
3. Remove the ignition control module bracket from the engine with the ignition control module and spark plug wires still attached. Position out of the way. Refer to Ignition Control Module Bracket Replacement .




4. Disconnect the positive crankcase ventilation (PCV) fresh air pipe (1) from the right valve rocker arm cover.





Notice: Valve rocker arm cover gasket and sealant must be carefully trimmed away from lower intake manifold gasket. Failure to do so will damage the lower intake manifold gasket, causing a severe oil leak.

5. Loosen the valve rocker arm cover bolts.





Important: When removing the valve rocker arm cover, ensure the gasket stays in place attached to the cylinder head.


6. Remove the valve rocker arm cover.
Bump the end of the valve rocker arm cover with the palm of your hand or a soft rubber mallet if the cover adheres to the cylinder head.
7. Trim the valve cover gasket and sealant away from the lower intake manifold gasket at the cylinder head to lower intake manifold joints (1).
8. Remove the valve rocker arm cover gasket.
9. Clean the sealing surface on the cylinder head with degreaser.
10. Clean the valve rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection (Overhaul) .



Installation Procedure






Important: All gasket mating surfaces need to be free of oil and foreign material. Refer to Sealers, Adhesives, and Lubricants (Mechanical Specifications) for the correct part number to use to clean surfaces.



Important: Apply sealer at the cylinder head to lower intake manifold joint. Refer to Sealers, Adhesives, and Lubricants (Mechanical Specifications) for the correct part number.


1. Apply sealant at the cylinder head to lower intake manifold joints (1).




2. Install a new gasket to the valve rocker arm cover. Ensure the gasket is properly seated in the groove of the valve rocker arm cover.

Notice: Refer to Fastener Notice .

3. Install the valve rocker arm cover.

Tighten the bolts to 10 N.m (89 lb in).





4. Connect the PCV fresh air pipe (1) to the right valve rocker arm cover.
5. Install the ignition control module bracket with the ignition control module and spark plug wired still attached. Refer to Ignition Control Module Bracket Replacement .
6. Install the generator bracket. Refer to Generator Bracket and Engine Lift Bracket Replacement (LNJ) .
7. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (Service and Repair) .