Valve Guide Seal: Service and Repair

Valve Stem Oil Seal and Valve Spring Replacement

Tools Required
* J 43059 Valve Retainer Remover/Installer
* SA9102E-A Valve Stem Seal Installer
* SA9127E Spark Plug Port Adapter
* EN 46335 Valve Spring Compressor
* EN 46336 Valve Guide Seal Installer

Removal Procedure

1. Remove the valve rocker arms.
2. Remove the spark plug.
3. Install the SA9127E and apply air pressure to the cylinder in order to keep the valve from dropping into the cylinder.
4. Using an appropriately sized deep socket and a plastic hammer, lightly tap on the valve spring retainer to loosen the valve keepers.




Caution: Refer to Compressed Valve Spring Caution.

5. Compress the valve spring with the EN 46335.




6. Use the magnetic end of the J 43059 in order to remove the valve keepers (1).
7. Remove the EN 46335.
8. Remove the valve spring retainer (2).




9. Remove the valve spring.




10. Remove the valve seal using the SA9102E-A.

Installation Procedure




1. Lubricate the valve stem, valve seal and guide with engine oil.




2. Use the EN 46336 to install the valve stem oil seals onto the guides. Intake valve seals have a white spring (1). Exhaust valve seals have a black spring (2).




3. Position the valve spring on the spring seat.




4. Place the valve spring retainer (2) onto the valve spring.




Caution: Refer to Compressed Valve Spring Caution.

5. Compress the valve spring using the EN 46335.




6. With the spring compressed, install the valve keepers into the J 43059.
7. Place the keepers (1) into position by pushing the tool downward.
8. Release the tension on the spring compressor and remove the EN 46335.
9. Verify that the valve keepers are installed by placing a rag over the valve tip and tapping with a dead-blow hammer. The valve keepers and the spring should remain in place.
10. Relieve the air pressure from the cylinder and remove the SA9127E.
11. Install the spark plug.
12. Install the valve rocker arms.