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Home >> Chevy Truck >> 1998 >> S10/T10 P/U 2WD L4-2.2L VIN 4 >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Cylinder Head Assembly >> Valve Spring >> Service and Repair

Valve Spring: Service and Repair

REMOVAL PROCEDURE

^ Tools Required
- J22794 Spark Plug Port Adapter
- J 5892-D Valve Spring Compressor





1. Disconnect the battery negative cable.
2. Drain the cooling system.
3. Remove the valve rocker arm cover from the cylinder head.
4. Remove both heater hoses from the heater core.
5. Remove the spark plugs from the cylinder head.
6. Remove the valve rocker arm (s) from the cylinder head.
7. Install the J22794 to the spark plug hole in the cylinder head.
8. Apply compressed air in order to hold the valve in place.
9. Tap the valve retainer with a soft-faced hammer in order to loosen the valve keys.
10. Install an 8 mm by 65 mm bolt with a hardened washer into the rocker arm bolt hole.





11. Place the J 5892-D over the valve spring.
12. Compress the valve spring with the J 5892-D.





13. Remove the valve keys.
14. Carefully release the spring tension.
15. Remove the J 5892-D.
16. Remove the valve spring cap.
17. Remove the valve spring.
18. Remove the valve stem oil seal.
19. Clean and inspect all parts.

INSTALLATION PROCEDURE

^ Tools Required
- J 22794 Spark Plug Port Adapter.
- J 5892-D Valve Spring Compressor.
- J 38820 Valve Seal Installer.





1. Lubricate the outside of the valve guide and the valve seal with clean engine oil.

NOTICE: The LN2 Engine uses a unique valve spring seat and seal combination unit. Under no circumstances should this seal and seat unit be replaced with a different type of seal. Use care to ensure that the valve stem seal and spring seat are not damaged during installation. Do not use excessive force or a hammer to install the seal on the guide. The seal will go on if straight and properly lubricated using hand pressure only.

2. Using the J 38820 install the valve spring seat and seal unit onto the guide. Push and twist the valve seal into position on the valve guide until the spring seat flange is flush with the cylinder head surface.
3. Set the valve spring in place.
4. Set the valve spring cap in place.





5. Compress the valve spring with the J 5892-D

NOTICE: Make sure that the valve keys are properly seated. Engine damage could occur if not properly seated.

6. With air pressure still applied, install the valve keys. Use grease in order to hold the valve keys in place.
7. Remove the J 5892-D from the valve spring.
8. Remove the J 22794 from the cylinder head.
9. Remove the 8 mm by 65 mm bolt and washer.





10. Install the valve rocker arms to the cylinder head.
11. Install the spark plugs to the cylinder head.
12. Install both heater hoses on to the heater core.
13. Install the valve rocker arm cover.
14. Fill the cooling system.
15. Connect the battery negative cable.


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