Toyota 3R-B 1969, Repair Manual

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9-2 S T A R T I N G S Y S T E M - T r o ub l e Shooting
T R O U B L E S H O O T I N G
Symptoms & ]Rr*olDcitale Cdusss Remedies
1
i
S ta rte r d oes not turn
S ta rte r spins, but does not crank the engine
a
.
P o o r contact of starter switch
contact points
Replace ignition switch
b
.
Burnt o r p oor contact of mag­
Clean contact plate o r replace mag­
netic switch contact plate
netic switch
c
.
Open magnetic switch pull-in
coil circuit
R eplace magnetic switch
d. Open magnetic switch holding
coil circuit
Replace magnetic switch
e
.
P o o r contact of brush
D r e s s commutator and brush
f.
Burnt commutator
Lathe cut commutator
9-
Commutator mica too high
U nd er cut mica
h
.
Shorted field coil R eplace field coil
i
.
Shorted armature
Replace armature
j
.
Weak brush spring tension
Replace springs
k
.
P o o r soldering of field coil S o ld e r
1. Worn bushings
R eplace bushings
m
.
Weak battery
R e c h a rg e battery
n
.
Shorted battery cell/s R eplace battery
o
.
P o o r contact of battery
terminal/s
Clean and tighten terminal/s
P.
Open circuit between starter
switch and magnetic switch
R ep air
q-
P o o r battery ground cable con­
nection
Clean and tighten
S ta r te r turns, but pinion does not mesh with ring g e a r
a
.
S ta r te r clutch pinion g e a r worn
R eplace starter clutch
b.
D efe ctiv e starter clutch Replace starter clutch
c
.
D efective d r iv e spring
R ep lac e d rive spring
d.
P o o r movement of clutch on
splines
Clean and c o r r e c t
e
.
Worn starter clutch bushing
R eplace starter clutch
f.
P o o r starter clutch pinion travel
Adjust magnetic switch stud
9- Worn starter bushing/s
C o r r e c t
h.
Worn starter bushing/s
R ep lac e bushing/s
i
.
Ring g e a r w orn
Replace ring ge a r
S ta r te r motor keeps running
a
.
Shorted magnetic switch coil
R ep lac e coil
b.
Melted magnetic switch contact
plate
R ep lac e megnetic switch
c
.
S ta r te r switch returns poorly
R eplace ignition switch