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14-2
PART
14-1
FORD STARTING SYSTEM
Section
1 Description and Operation
2
Diagnosis and Testing
....
Page
14-2
.... 14-2
D
DESCRIPTION AND OPERATION
Three
types of starter motor are
used
on
XA/ZF Falcon/Fairlane
vehicles.
1.
Ford
-
positive pre-engaged
pinion operated by a moving pole
shoe and remote relay.
2. Bosch
-
positive pre-engaged
pinion
operated
by
an integral
solenoid.
3.
Lucas
-
positive pre-engaged
pinion
operated
by
an integral
solenoid.
The function of the starting sys-
tem is to crank the engine at high
enough speed to permit it to start.
The system includes the starter motor
and drive, the battery, a remote con-
trol starter switch (part of the igni-
tion switch). the neutral-start switch
1
the starter relay or solenoid ana
heavy circuit wiring. The starter
mounting is shown in Fig. I
.
Turning of the ignition key to the
START position actuates the starter
relay, through the starter control cir-
cuit. The starter relay then connects
the battery to the starter.
Cars equipped with an automatic
transmission
have
a
neutral-start
switch, in the starter control circuit,
which prevents operation of the
starter if the selector lever is not in
the N (neutral) or P (park) position.
The starter utilizes an integral
positive-engagement drive
D
DIAGNOSIS AND TESTING
The following diagnosis and testing
procedures may be applied to all three
starter
motors.
Where applicable
read solenoid for relay.
A schematic diagram of the start-
ing circuit is shown in Fig. 3
The majority of starting problems
usually fall into one of the following
situations: the starter will not crank
the engine; the engine will crank at
normal speed but will not start; and
the starter cranks the engine very
slowly.
If the engine will crank but will
not start, the trouble is usually in the
engine, fuel system or ignition system
rather than in the starting
system.
Following are road map
type
charts which may be followed to de-
termine the cause of the difficulty
and the corrective action.
ROAD SERVICE
On road service calls, connect a
booster battery to the system for
cases of a starter that will not crank
the engine or a starter that cranks the
engine very slowly. If the starter
turns the engine over, but the engine
still will not start, even with the
booster battery attached, refer to the
following charts. Be certain that cor-
red battery polarity is observed when
using a booster battery; posidve to
posidve, and negadve to negadve
FIG. 1 -Starter Mounting -Typical
connecdon of the au:dliary cables.
STARTER WILL NOT CRANK
THE ENGINE
Refer to Fig. 2 for this symptom.
NOTE I-NEUTRAL START
SWITCH TEST
On vehicles equipped with an au-
tomatic
transmission,
apply
the
brakes and attempt to start the en-
gine while moving the selector lever
through all
ranges.
This may deter-
mine if the problem is caused by a
maladjusted or defective neutral-
start switch. Refer to Group 7 Part 3
for the adjustment of this switch.
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