LUBRICATION SYSTEM
TROUBLESHOOTING
Engine oil level too low
Oil consumption
External oil leak
Worn piston rings (page 11-8)
Incorrect piston ring installation (page 11-9)
Worn cylinder (page 11-5)
Worn valve guide (page 10-16)
Worn valve stem seal (page 10-14)
Oil contamination
Oil not changed often enough
• Faulty cylinder head gasket
• Worn piston rings (page 11-8)
8-4
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