Westerbeke 65A-FOUR - Page 12

ENGINE TROUBLESHOOTING
Problem Probable Cause
Veriftcatlon/Remedy
Exhaust smoking problems
1.
Blue smoke. 1.
Incorrect grade of engine oil.
1a. Crankcase is overfilled with engine oil (oil is blowing out
through the exhaust).
2. White smoke.
2. Engine is running cold.
28. Faulty injector or incorrect injector timing.
3. Black smoke. 3. Improper grade of fuel.
3a. Fuel burn incomplete due to high back pressure in exhaust or
insufficient air for proper combustion (Check for restrictions in
exhaust system; check air intake.).
3b.lmproperly timed injectors or valves or poor compression.
3 •. lack of air - check air intake and air filter. Check for proper
ventilation.
3d. Overload.
LCD QISPLAYS
No LCD Display
1.
Check battery. 1. Battery on.
2.
20 amp breaker off. 2. Turn breaker on.
Oil Pressure
1.
Oil level low/oil leak. 1. Check oil level, add oil and repair leaks.
2.
Lack of oil pressure 2. Test oil pressure. If OK, test oil pressure sendor, inspect oil
filter, inspect oil pump.
3.
Ground connection. 3. Check ground connection.
4.
Faulty control module. 4. Inspect all the plug connections/replace.
Coolant Temperature 1. Check system coolant level. 1. Add coolant. Check for leaks.
2.
Check water pump drive belt.
2.
Adjust belt tension, replace belt.
3.
Faulty Temp sensor. 3. Check sensor/replace.
4.
Ground Connection. 4. Check ground circuit.
5.
Faulty control module. 5. Check plug connectionslreplace.
Exhaust Temperature
1.
Check sea water flow. 1. Inspect thru hull fitling, hose and strainer. Correct as needed,
2.
Faulty exhaust temp switch. 2. TesVreplace.
3.
Ground Connection. 3. Check ground circuit.
4.
Faulty control module. 4. Check plug connections.
5.
Sea water pump. 5. Inspect impeller/replace.
Battery Voltage
1.
Check alternator drive belt. 1. Adjust tension/replace if worn.
2.
Check charge voltage. 2. Check excitation. replace/repair alternator
3.
Check battery connections. 3.
Check + and - cables from battery to engine.
4.
Faulty control module.
4.
Check plug connectionslreplace.
Generator Voltage
1.
Check AC voltage output. 1.
Adjust voltageitroubleshoot generator for cause.
2.
Faulty control module.
2. Check plug connectionslreplace.
Generator Frequency 1.
Check engine speed. 1. Adjust.
2.
Check fuel supply. 2. Inspect filters/replace filters. Test fuel pump operation.
3.
Amperage load. 3. Check load with amprobe.
LED Display - 1.
Compartment ambient temperature 1. Ventilate compartment.
edges tum pink.
too high.
-.¥ WESTERBEKE
Engines & Generators
7