Tools Required

1. Remove the valve rocker arms. Refer to Valve Rocker Arm and Push Rod Replacement .
2. Remove the spark plugs. Refer to Spark Plug Replacement in Engine Electrical.




Caution: Wear safety glasses in order to avoid eye damage.

3. Install the J 22794 into the spark plug hole.
4. Apply compressed air in order to hold the valves in place.
5. Install a valve rocker arm nut.



6. Use the J 5892-D in order to compress the valve spring.



7. Use J 38606 when J 5892-D will not fit.



8. Remove the valve stem keys (1).
9. Carefully release the valve spring tension.
10. Remove the J 5892-D or the J 38606 .
11. Remove the valve spring cap (2) and valve spring (3).
12. Remove the valve stem oil seal (4).

Tools Required

Important: The exhaust valve oil seal has the letters EX (1) molded into the top of the seal. The seal material is brown in color (2) with a white stripe (3) painted on the outside diameter of the seal, or the material may be off white in color (2) with no paint stripe. The intake valve oil seal is black in color. The exhaust and intake valve seals are not interchangeable.

1. Select the proper valve stem oil seal for the specific valve guide.
2. Lubricate the valve stem oil seal and guide with clean engine oil.
3. Assemble the valve stem oil seal onto the valve guide using the J 42073 and a hammer.
4. Install the valve stem oil seal onto the valve guide until the installation tool bottoms against the valve spring seat.



5. Inspect the valve stem oil seal. The valve stem oil seal should not be bottomed against the valve guide.

There should be a 1-2 mm (0.03937-0.07874 in) gap between the bottom edge of the valve stem oil seal and the valve guide.




6. Install the valve spring (3).
7. Install the valve spring cap (2) on the valve stem.
8. Compress the valve spring (3) using the J 5892-D .



9. Use the J 38606 if the clearance does not permit use of J 5892-D .
10. Install the valve stem keys.

Use grease in order to hold the valve stem keys in place.




11. Carefully release the valve spring pressure. Ensure that the valve stem keys stay in place.
12. Remove the J 22794 , the J 5892-D or the J 38606 .



13. Install the spark plugs. Refer to Spark Plug Replacement in Engine Electrical.
14. Install the valve rocker arms and valve rocker arm covers to the cylinder head. Refer to Valve Rocker Arm and Push Rod Replacement .