Starter Motor - Westerbeke 6.5 MCG Service Manual

STARTER MOTOR
START
··BATTERY
BATTERY
. SWITCH
TESTING WITH AN ELECTRICAL JUMPER
NEGATIVE
~---"
·REFER TO THE ILLUSTRATION BELOW
TYPICAL
DIAGRAM
TROUBLESHOOTING/INSPECTION
Prior to testing, make certain the ships batteries are at full
charge and that the starting system wiring connections
(terminals) are clean and tight. Pay particular attention to
the ground wire connections on the engine block.
To check the wiring, try cranking the starter for a few
cycles, not more than three crank cycles at a time, then run
your hand along the wires and terminals looking for warm
spots that indicate resistance. Repair or replace any trouble
spots.
Using a multimeter, test the voltage between the positive
terminal stud on the start solenoid and the engine block
(ground).
If you read 12 volts, the starter is faulty.
If nothing happens at all, the solenoid is not getting
current. Check the battery and inspect the wiring
connections. It is also possible that the solenoid is defective.
REFER TO.THE.WIRING
DIAGRAM IN THIS MANUAL
FOR WIRE CONECTIONS
•{+) POSITIVE
TERMINAL
Remove the Terminal S wire from the ignition and attach
the lead from the electrical jumper. Leave the
+
positive
battery
att~ched
and clip the jumper aligater fitting to that
·terminal. The push button should crank the starter.
If the push button fails to crank the starter and the batteries
wiring and wired connections have been checked, the starter
needs to be removed for service.
· NOTE:
This electrical jumper can be fabricated using a
standard push button and two connecting wires.
, TO REMOVE FOR SERVICE
1. Tum off the DC battery switch.
2. If necessary, remove any components to gain full access
to the starter motor.
3. Label and disconnect the wiring from the starter. (Do not
allow wires to touch, tape over the terminals).
. 4. Remove the starter mounting bolts.
: 5. Remove the starter from the engine.
In
s"ome cases the
starter will have to be turned to a different angle to clear
obstructions,
NOTE:
WESTERBEKE uses an ignition proof starter
approved by the U.S. Coast Guard.
If
it is necessary to
replace the starter, purchase a new starter from a
WESTERBELE dealer/distributor.·
STARTER/SOLENOID TESTING
Engines & Generators
.48