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12.
Trouble Shooting
Excessive Oil Consumption
Possible Cause
Remedy
External Leak
Clean/Check/Repair
Excessive Oil in Crankcase
Remove Excess Oil. Refer to Engine Identification on Page 15 for Correct Oil Level
Oil/Fuel Dilution
Change Oil
Extended Excessive RPM’s
Reduce RPM’s
Incorrect Oil Viscosity
Change to Proper Oil
Engine Vents Blocked
Unblock Vents
Defective Piston Rings
See Dealer
Defective Cylinders
See Dealer
Excessive Bearing Clearance
See Dealer
The Amount of Oil Used is Greatly Dependent Upon Engine Speed. Oil Usage Will be Greater at Higher RPM’s.
Engine Overheating - Verify if Engine is Actually Overheating
Possible Cause
Remedy
Low Coolant Level
Add Coolant. Refer to Bleeding Procedure if Coolant was Low or Not Flowing into Tank
Clogged Sea Water Intake
Clear Intake. Ensure That All Hoses After the Intake are Clear
Clogged Sea Water Strainer
Clean Sea Strainer
Loose Hose Connections
Check and Tighten Clamps
Sea Water Hose Kinked or Collapsed
Verify Hose Routing and Condition
Obstruction in Cooling System
Verify that Engine/Transmission Oil Cooler is not Clogged with Debris
Sea Water Pump Impeller Worn
Replace
Antifreeze Not Properly Mixed
Mix to a 50/50 Ratio
Heat Exchanger Core Plugged
Verify that Engine Heat Exchanger Ends are not Clogged
Alternator Drive Belt Broken
Replace