Specifications

96
Excessive Engine Temperature
Possible Cause Remedy
• Seacock closed, if so equipped • Open.
• Drive belt loose or in poor condition • Replace and/or adjust belt.
• Seawater pickups obstructed • Remove obstruction.
• Faulty thermostat • Replace.
• Coolant level low in closed cooling
section
• Check for cause of low coolant level and repair.
Fill system with proper coolant solution.
• Heat exchanger cores plugged with
foreign material
• Clean seawater side of water/water
heat exchanger.
• Loss of pressure in closed cooling
section
• Check for leaks. Clean, inspect and test pres-
sure cap.
• Closed cooling section dirty • Clean and flush.
• Faulty seawater pickup pump • Repair.
• Seawater discharge restricted or plugged • Clean exhaust elbow.
• Seawater inlet hose kinked (restricted) • Position hose to prevent kinking (restriction).
• Use of improperly designed hose on inlet side
of seawater pump allowing it to collapse
• Replace hose with wire reinforced design.
• Excessive exhaust back pressure • Check that exhaust bellows was replaced with
exhaust tube
Insufficient Engine Temperature
Possible Cause Remedy
• Faulty thermostats • Replace.