Cylinder Head Disassemble and Assemble. Buick Roadmaster 1996

For 1990-2009 cars

### Disassembly Procedure

#### Tools Required

J 8062 Valve Spring Compressor

1. Remove the spark plugs from the cylinder head.
2. Use J 8062 in order to compress the valve springs.
3. Remove the valve stem keys.
4. Remove the cap from the valve.
5. Remove the valve spring.
6. Remove the valve stem oil seal.
7. Remove the valve.

Place the valves in a rack in the proper sequence so that the you can install them in the same order.

### Assembly Procedure

#### Tools Required

• | J 8062 Valve Spring Compressor

• | J 42073 Valve Stem Oil Seal Installer

1. Assemble the valve into the proper port.
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 . Install the oil seal onto the valve guide until the installation tool bottoms against the valve spring seat.
4. Inspect the oil seal. The seal should not be bottomed against the valve guide.
5. There should be a 1-2 mm (0.03937-0.07874 in) gap between the bottom edge of the seal and the guide.
6. Assemble the valve spring.
7. Assemble the cap onto the valve stem.
8. Compress the valve spring. Use the J 8062 .
9. Assemble the valve stem keys. Use the following procedure:

9.1. | Use grease in order to hold the keys in place while disconnecting the J 8062 .

9.2. | Ensure that the keys seat properly in the upper groove of the valve stem.

9.3. | Tap the end of the stem with a plastic-faced hammer in order to seat the keys, if necessary.