Rocker Arm Assembly: Service and Repair

REMOVAL PROCEDURE






1. Remove the valve rocker arm cover(s).
2. Remove the rocker arm bolt(s).
3. Remove the rocker arm(s).

IMPORTANT:
Place the valve train parts in a rack in order to ensure that they are installed in the same location from which they were removed. Intake pushrods measure 144.18 mm (5.68 inch) long. Exhaust pushrods measure 152.51 mm (6.0 inch) long. Use care when removing the pushrods. Ensure that they do not fall down into the lifter valley.

4. Remove the pushrod(s).
5. Clean and inspect the valve train components.

INSTALLATION PROCEDURE

IMPORTANT: Coat the bearing surface of the rocker arms, rocker arm bolts, and pushrods with prelube. Install all of the components in their original location.






1. Use the following steps in order to install the push rod(s).
1.1. Coat the ends of the pushrods with prelube.
1.2. Install the intake valve pushrods measure 144.18 mm (5.68 inch) long.
1.3. Install the exhaust valve pushrods measure 152.51 mm (6.0 inch) long.

2. Install the rocker arm(s).
3. Install the rocker arm bolt(s).
Tighten the rocker arm bolt to 19 Nm (14 ft. lbs.) plus 30 degrees.

4. Install the valve rocker arm cover(s).