Engine Troubleshooting - Westerbeke 5.0Kw BCDR Operator's Manual

ENGINE TROUBLESHOOTING
The following troubleshooting table describes certain
problems relating to engine service, the probable causes of
the problems, and the recommendations to overcome these
problems.
Problem Probable Cause
PREHEAT switch depressed: 1. Battery Switch not on.
no panel indications;
fuel solenoid or electrical fuel pump 2. Emergency stop switch off.
3. 20-Amp circuit breaker tripped.
4. K2 relay
5. loose battery connections.
START SWITCH DEPRESSED, no starter 1. Connection to solenoid faulty.
engagement.
2. Faulty switch.
3. Faulty solenoid.
4. loose battery connections.
5. low battery.
6. Kl relay.
Note:
The engine
s
electrical system is protected by a 20 amp
manual reset circuit breaker located on a bracket at the rear
of the engine.
Verlflcation/Remedy
1. Check switch and/or battery connections.
2. Check emergency stop switch position.
2. Reset breaker; if breaker trips again, check preheat solenoid
circuit and check circuit for shorts to ground.
3. Check K2 relay.
4. Check (+) connection to starter solenoid and (-) connection to
engine ground stud. Check battery cable connections.
1. Check connection.
2. Check switch with ohmmeter.
3. Check that 12 volts are present at the solenoid connection.
4. Check battery connections.
5. Check battery charge state.
6. Check K1 relay.
START switch is depressed; panel 1. Poor connections to fuel solenoid. 1. Check connections.
indications OK; starter solenoid OK
fuel solenoid not functioning. 2. Defective fuel solenoid. 2. Check that 12 volts are present at the (+) connection on the
fuel run solenoid.
Generator engine cranks, but does not 1. Faulty fueling system. 1. Check that fuel valves are open.
start, fuel solenoid energized. la. Switch to combine house and start batteries.
1 b. Replace batteries.
le. Check fuel lift pump.
1 d. Change inlet fuel filter.
2. Preheat solenoid faulty. 2. Check solenoid.
Engine can't be stopped. 1. Faulty DC alternator. 1. Remove "R" connection at alternator, repair alternator.
Battery runs down. 1. Oil Pressure switch. 1. Observe if gauges and panel lights are activated when engine
is not running. Test the oil pressure switch.
2. High resistance leak to ground. 2. Check wiring. Insert sensitive (0 - .25 amp) meter in battery
lines. Do not start engine. Remove connections and replace
after short is located.
3. low resistance leak. 3. Check all wires for temperature rise to locate the fault.
4. Poor battery connections.
4. Check cable connections at battery for loose connections,
corrosion.
5. DC alternator not charging. 5. Check connections, check belt tension. test alternator. See
DC ELECTRICAL SYSTEM/ALTERNATOR.
Battery not charging 1. DC charge circuit faulty. 1. Perform D.C. voltage check of generator charging circuit. See
DC ELECTRICAL SYSTEM/ALTERNATOR in this manual.
2. Alternator drive. 2. Check drive belt tension. Alternator should turn freely. Check
for loose connections. Check output voltmeter. Ensure 12 volts
are present at the Exc. terminal.
Engines & Generators
20