Sierra 2500 4WD V8-6.6L DSL Turbo (2007)
3. Install the valve spring (3), the painted end of the valve spring goes toward the cylinder head.
4. Install the valve spring upper seat (2).
Caution: Compressed valve springs have high tension against the valve spring compressor. Valve springs that are not properly
compressed by or released from the valve spring compressor can be ejected from the valve spring compressor with intense force. Use care
when compressing or releasing the valve spring with the valve spring compressor and when removing or installing the valve stem keys.
Failing to use care may cause personal injury.
5. Using J 44646 compress the valve spring.
6. Install the valve keys to the valve stem.
Notice: The valve stem keys must correctly seat in the valve spring cap. Engine damage may occur by not installing properly.
7. Carefully release the valve spring pressure. Make sure the valve keys stay in place.
8. Continue to install the 3 remaining valve stem seals for the cylinder.
9. Release the compressed air holding the valves in place.
10. Remove J 26999-20 (1) from the glow plug hole.
11. Continue to replace the valve stem seals on the remaining cylinders using the above procedures.
12. Install the glow plug.
13. Install the valve rocker arm shaft, the valve bridges, and the push rods.
14. Install the upper and lower fan shroud.
