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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
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