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STARTING MOTOR-DIRECT
DRIVE
8-23
fork toward the commutator (Fig. 6). This is impor-
tant, if the fork is not properly positioned, the starter
gear travel will be restricted causing a lockup in the
clutch mechanism.
(4)
Install the drive end (pinion) housing on the
armature shaft, indexing shifting fork with the slot
in the drive end housing.
(5) Install the shifter fork pivot pin (Fig.
5).
(6) With the clutch drive, shifter fork, and pinion
housing assembled to the armature, slide the armature
into field frame until the pinion housing indexes with
the slot in the field frame.
(7) Install the solenoid and boot assembly (Fig.
4).
Tighten the bolts to 60-70 inch pounds.
(8)
Connect the field coil leads at the solenoid con-
nector (Fig.
3).
Be sure that the terminals do not
touch the field frame.
(9)
Install the brush holder ring (Fig. 2) indexing
tang of ring in hole of field frame.
(10) Position the brushes in the brush holders. Be
sure the field coil lead wires are properly enclosed
behind the brush holder ring and that they do not in-
terfere with the brush operation.
(11)
Install the thrust washers on the commutator
end of the armature shaft to obtain .010 inch mini-
mum end play.
(12) Install the commutator end head.
(13)
Install the through bolts and tighten to
40
to
50 inch-pounds.
ADJUSTING STARTER DRIVE GEAR
(PINION) CLEARANCE
(1) Place the starter assembly in a vise equipped
with soft jaws and tighten the vise sufficiently to hold
the starter.
NOTE:
Place a wedge or screwdriver between the
bottom of the solenoid and the starter frame to
eliminate all deflection in the solenoid when mak-
ing the
pinion
clearance test.
(2)
Push in on the solenoid plunger cage (Fig.
13)
(NOT THE FORK LEVER) until the plunger bottoms.
Fig. 73-Checking
Starter Drive
Pinion Clearance
(3) Measure the clearance between the end of pin-
ion and pin stop with the plunger seated and the pin-
ion pushed toward the commutator end. The clear-
ance should be
%
inch. Adjust for proper clearance
by loosening the solenoid attaching screws and move
the solenoid fore and aft as required.
(4)
Test the starter operation under a "Free Run-
ning Test."
INSTALLING THE STARTING MOTOR
(1) Before installing the starter, be sure starter and
flywheel housing mounting surfaces are free of dirt
and oil. These surfaces must be clean to make good
electrical contact.
(2)
Position the starter to the flywheel housing re-
movable seal.
(3) Install the starter from beneath the engine.
(4)
Tighten the attaching bolts securely.
(5)
Attach the wires to the solenoid switch and
starter terminal.
(6)
Install the battery ground cable and test the
operation of the starter for proper engine cranking.
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