TROUBLESHOOTING
95
Insufficient Engine Temperature
Possible Cause Remedy
Faulty water thermostat. Replace water thermostat.
Faulty gauge or sender. Test with shop gauge; test sender.
Faulty oil thermostat. Replace.
Excessive Engine Temperature
Possible Cause Remedy
Seacock closed. Open.
Charge Air Cooler plugged with foreign
material.
Clean Charge Air Cooler.
Seawater pump drive belt loose or in
poor condition.
Replace or adjust belt.
Seawater pickups obstructed. Inspect.
Faulty thermostat. Replace.
Oil cooler cores plugged with foreign
material.
Clean cooler cores.
Faulty seawater pickup pump. Repair.
Seawater discharge restricted or
plugged.
Clean exhaust elbows.
Faulty gauges or senders. Test with shop gauges; test senders.
Aerated water supply to water pick‑up.
Place water pick‑up in a non‑aerated
water supply.
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