Cylinder Head Visual Inspection Procedure

^ Tools Required
- J8001 Dial Indicator Set
- J8089 Carbon Removal Brush
- J28410 Gasket Scraper (Aluminum Components)





1. Inspect the cylinder head for the following:
^ Cracks, damage or pitting in the combustion chambers.
^ Scoring of the camshaft bearings and/or the journals. If the camshaft bearing journals appear to be scored or damaged, you must replace the cylinder head. DO NOT machine the camshaft bearing journals
^ Debris in the oil galleries. Continue to clean the galleries until all debris is removed.
^ Coolant leaks or damage to the deck face sealing surface. If coolant leaks are present, measure the surface warpage as described under Cylinder Head Resurfacing.
^ Damage to any gasket surfaces
^ Damage to any threaded bolt holes
^ Burnt or eroded areas in the combustion chamber
^ Cracks in the exhaust ports and combustion chambers
^ External cracks in the water chamber
^ Restrictions in the intake or exhaust passages
^ Restrictions in the cooling system passages
^ Rusted, damaged, or leaking core plugs

2. If the cylinder head is cracked or damaged, it must be replaced. No welding or patching of the cylinder head is recommended.