Cylinder Head

CLEANING
CYLINDER HEAD GASKET SURFACE PREPARATION
To ensure engine gasket sealing, proper surface preparation must be performed, especially with the use of aluminum engine components.
Never use the following to clean gasket surfaces:
- never use a metal scraper.
- never use an abrasive pad or paper to clean the cylinder block.





Fig. 136

- never use a high speed power tool or wire brush on any gasket sealing surface.
Only use the following for cleaning gasket surfaces:
- use Mopar Brake and Parts Cleaner
- use only a plastic or wood scraper (Fig. 136).


INSPECTION
1. Inspect the cylinder head for out-of-flatness, using a straightedge and a feeler gauge. If tolerances exceed 0.0508 mm (0.002 inch) replace the cylinder head.
2. Inspect the valve seats for damage. Service the valve seats as necessary.
3. Inspect the valve guides for wear, cracks or looseness. If either condition exist, replace the cylinder head.