Lubrication System Troubleshooting - Honda GL1800 Service Manual

LUBRICATION SYSTEM
TROUBLESHOOTING
Oil level too low
• Oil consumption
• External oil leak
• Worn piston rings
• Improperly installed piston rings
• Worn cylinders
• Worn stem seals
• Worn valve guide
Low oil pressure
• Oil level low
• Clogged oil strainer
• Faulty oil pump
• Internal oil leak
• Incorrect oil being used
No oil pressure
• Oil level too low
• Oil pressure relief valve stuck open
• Broken oil pump drive chain
• Broken oil pump drive or driven sprocket
• Damaged oil pump
• Internal oil leak
High oil pressure
• Oil pressure relief valve stuck closed
• Clogged oil gallery or metering orifice
• Incorrect oil being used
Oil contamination
• Oil or filter not changed often enough
• Worn piston rings
Oil emulsification
• Blown cylinder head gasket
• Leaky coolant passage
• Entry of water
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