Rocker Arm Assembly: Service and Repair

Valve Rocker Arm and Push Rod Replacement

Removal Procedure

Important: Mark, organize, and sort the cylinder head components. Return the components to their original location during reassembly.





1. Remove the valve rocker arm cover.
2. Remove the valve rocker arm nuts, the valve rocker arm balls, and valve rocker arms.





3. Important: The exhaust valve pushrods (2) are longer than the intake valve pushrods (1).

Remove the valve pushrods.





4. Remove the valve rocker arm studs and pushrod guides.
5. Clean and inspect the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rods Cleaning and Inspection.

Installation Procedure

Important: Be sure to keep parts in order. Parts must be put back from where they were removed.





1. Apply sealant to the valve rocker arm stud-to-cylinder head threads. Refer to Sealers, Adhesives, and Lubricants for the correct part number.

Notice: Refer to Fastener Notice in Service Precautions.

2. Install the pushrod guides and valve rocker arm studs.
Tighten the studs to 50 Nm (37 ft. lbs.).





3. Important: The exhaust valve pushrods (2) are longer than the intake valve pushrods (1).

Install the valve pushrods.





4. Coat the valve rocker arm and valve rocker arm ball bearing surfaces with lubricant. Refer to Sealers, Adhesives, and Lubricants for the correct part number.
5. Install the valve rocker arms, the valve rocker arm balls, and the valve rocker arm nuts.
Tighten the nuts slowly to 35 Nm (26 ft. lbs.) while guiding the tips of the rocker arms over the tips of the valves.
6. Install the valve rocker arm cover.