Rocker Arm Assembly: Service and Repair

Camshaft Roller Follower








Removal
1. If servicing the RH cylinder valvetrain components, remove the RH valve cover.
2. If servicing the LH cylinder valvetrain components, remove the LH valve cover.
3. Position the piston of the cylinder being repaired at the bottom of the stroke.





4. Install the special tool between the valve spring coils to protect the valve stem seal from damage.





5. CAUTION: The camshaft roller followers must be installed in their original locations. Record the camshaft roller follower locations. Failure to follow these instructions may result in engine damage.

NOTE: Do not allow the valve keepers to fall off the valve or the valve may drop into the cylinder. If a valve drops into the cylinder, the cylinder head must be removed.

NOTE: It may be necessary to push the valve down while compressing the spring.

Using the special tool, compress the valve spring and remove the camshaft roller follower.





6. Repeat the previous 3 steps for each of the roller followers being serviced.

Installation
1. Install the special tool between the valve spring coils to protect the valve stem seal from damage.





2. CAUTION: The camshaft roller followers must be installed in their original locations. Failure to follow these instructions may result in engine damage.

NOTE: Do not allow the valve keepers to fall off the valve or the valve may drop into the cylinder. If a valve drops into the cylinder, the cylinder head must be removed.

NOTE: It may be necessary to push the valve down while compressing the spring.

NOTE: Lubricate the camshaft roller follower with clean engine oil prior to installation.

Using the special tool, compress the valve spring and install the camshaft roller follower.





3. Repeat the previous 3 steps for each camshaft roller follower being serviced.
4. If servicing the RH cylinder valvetrain components, install the RH valve cover.
5. If servicing the LH cylinder valvetrain components, install the LH valve cover.