Chapter 5 Engine electrical systems
5-15
19.3 Typical mounting details for the starter motor
I Air cleaner housing 3 Starter motor
2 Electrical connections
2 Make sure that the battery is charged and that all cables, both at the
battery and starter solenoid terminals, are clean and secure.
3 If the starter motor spins but the engine is not cranking, the overrun-
ning clutch in the starter motor is slipping and the stater motor must be re-
placed.
4 If, when the switch is actuated, the starter motor does not operate at
all but the solenoid clicks, then the problem lies with either the battery, the
main solenoid contacts or the starter motor itself (or the engine is seized).
5 If the solenoid plunger cannot be heard when the switch is actuated,
the battery is bad, the fusible link is burned (the circuit is open) or the sole-
noid itself is defective.
6 To check the solenoid connect a jumper lead between the battery (+)
and the ignition switch wire terminal (the small terminal) on the solenoid. If
the starter motor now operates, the solenoid is OK and the problem is in
the ignition switch, neutral start switch or the wiring. I
7 If the starter motor still does not operate, remove the starter/solenoid
assembly for disassembly, testing and repair.
8 If the starter motor cranks the engine at an abnormally slow speed,
first make sure that the battery is charged and that all terminal connections
are tight. If the engine is partially seized, or has the wrong viscosity oil in it,
it will crank slowly.
9 Run the engine until normal operating temperature is reached. Dis-
connect the coil wire from the distributor cap and ground it on the engine.
10 Connectavoltmeter positive lead to the positive battery post and con-
nect the negative lead to the negative post.
11 Cranktheengineandtakethevoltmeterreadingsassoonasasteady
figure is indicated. Do not allow the starter motor to turn for more than 30
seconds at a time. A reading of 9 volts or more, with the starter motor turn-
ing at normal cranking speed, is normal. If the reading is 9 volts or more but
the cranking speed is slo, the solenoid contacts are burned, there is a bad
connection or the motor is faulty. If the reading is less than 9 volts and the
cranking speed is slow, the starter motor is
bad
or, the battery is dis-
charged.
20.3 To separate the solenoid from the starter motor, remove the
nut and detach the lead (arrow). . .
20.4
. . . then remove the solenoid mounting screws (arrows)
and fxrll the solenoid straight off the starter flange
19 Starter motor - removal and installation
Refer to illustration 19.3
’ 1 Detach the cable from the negative terminal of the battery.
2 Clearly label, then disconnect the wires from the terminals on the
starter solenoid.
3 Removethemounting bolts(seeillustration)andremovethestarter.
4 Installation is the reverse of removal.
20 Starter motor/solenoid/gear reduction
assembly - replacement
.
1 Disconnect the cable from the negative terminal of the battery.
2 Remove the starter motor (see Section 19).
Direct drive type .
Refer to illustrations 20.3, 20.4 and 20.5
3 Remove the field terminal nut, disconnect the field terminal lead and
remove the washer (see illustration).
4 Remove the solenoid mounting screws (see illustration).
To Next Page
Loading...
Need help?
General
