46. Cylinder Head Assemble

Cylinder Head Assemble

Tools Required

J 8062 Valve Spring Compressor - Head Off




1. Clean the cylinder head valve spring shim area.

Important: When using the valves and related components again, install the parts to their original location.

2. Install the valves (227).
3. Install the valve stem oil seal (222).
4. Install the valve spring (223).
5. Install the valve spring cap (224).




6. Using the J 8062, compress the valve spring.
7. Install the valve stem keys.

1. Use grease in order to hold the keys in place.
2. Remove the J 8062.
3. Ensure the keys seat properly in the groove of the valve stem.
4. Using a plastic face hammer, tap the end of the valve stem in order to seat the keys, if necessary.




8. Install the intake valve rocker arm wear pads (234).




9. Install sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the coolant temperature sensor.

Notice: Refer to Fastener Notice.

10. Install the coolant temperature sensor into the left cylinder head.

Tighten the coolant temperature sensor to 20 N.m (15 lb ft).




11. Install sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the cylinder head plug (229).
12. Install the cylinder head plug to the right cylinder head.

Tighten the cylinder head plug to 20 N.m (15 lb ft).