Page 329 of 1954
Starting Syste m
Starter Overhau l
CAUTION : Disconnec t th e batter y cabl e befor e remov -
in g th e starte r (se e pag e 4-6 ).
NOTE : Th e PC M memor y settin g i s neede d afte r recon -
necting th e batter y (se e pag e 11-125 ).
BRUS H HOLDE R
BRUS H SPRIN G
BRUS H HOLDE R
Test , pag e 4-1 2
EN D COVE R RIN
G
GEA R
ARMATUR E HOUSIN G
Test , pag e 4- 9
MOLYBDENU M
DISULFID E OVERRUNNIN
G
CLUTC H ASSEMBL Y
GEA R SHAF T
PLANETAR Y GEA RInspection , pag e 4-1 3
PLAT E
MOLYBDENU M
DISULFID E
ARMATUR EInspection an dTest , pag e 4-1 0
MOLYBDENU M
DISULFID EOVERRUNNIN
G
CLUTC H ASSEMBL Y
Inspection , pag e 4-1 3
SOLENOID
LEVER
STARTE R SOLENOI D
Test , pag e 4- 9
RIN G GEA R PINIO
N STO P
SPRIN
G CLI P
Replac e
MOLYBDENU M
DISULFID E GEA
R HOUSIN G
PLANETAR Y GEA RARMATUR E
STEEL BAL L
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Page 330 of 1954
Starter Solenoid Test
1. Remove the starter solenoid from the gear housing.
SOLENOID
SCREWS
GEAR HOUSING
2. Check for continuity between the terminals in each
solenoid plunger position according to the table.
PLUNGER
SOLENOID HOUSING (GROUND)
Starter Field Winding Test
1. Check for continuity between the brushes. If there's
no continuity, replace the armature housing.
2. Check for continuity between each brush and the
armature housing (ground).
If continuity exists, replace the armature housing.
BRUSHES
ARMATURE HOUSING (GROUND)
GROUND
PULL-IN COIL
HOLD-IN COILProCarManuals.com
Page 331 of 1954

Starting Syste m
Armatur e Inspectio n an d Tes t
1. Inspec t th e armatur e fo r wea r o r damag e du e to con -
tact wit h th e permanen t magnet . I f ther e i s wea r o r
damage , replac e th e armature .
Inspect fo r damag e
2. Chec k commutato r surfac e an d diameter .
I f th e surfac e is dirt y o r burnt , resurfac e wit h emer y
clot h o r a lath e withi n th e followin g specifications ,
o r reconditio n wit h #50 0 o r #60 0 sandpaper .
COMMUTATO R
SANDPAPE R
If commutato r diamete r i s belo w th e servic e limit ,
replac e th e armature .
Commutato r Diamete r
Standard (NEW )
31.9-32. 1 m m
(1.25 6 -1.26 4 in )
Servic e Limi t
31.5 mm
(1.24 0 in )
VERNIE R CALIPE R
COMMUTATO R
3. Measur e th e commutato r runout .
I f th e commutato r runou t i s withi n th e servic e
limit , chec k th e commutato r fo r carbo n dus t o r
bras s chip s betwee n th e segments .
If th e commutato r runou t i s no t withi n th e ser -
vice limit , replac e th e armature .
Commutato r Runou t
Standar d (NEW )
0-0.05 m m
(0-0.00 2 in ) Servic
e Limi t
0.1 m m
(0.00 4 in )
DIA L INDICATO R
COMMUTATO R
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Page 332 of 1954
4.
Check for mica depth. If necessary, undercut the mica
with a hacksaw blade to achieve proper depth. If the
service limit cannot be maintained, replace the arma-
ture.
NO-GOOD
GOOD
MICA DEPTH
Commutator Mica Depth
Standard (NEW)
0.5-0.8 mm
(0.020-0.031 in)
Service Limit
0.20
mm
(0.008 in)
5.
Check for continuity between the segments of the
commutator. If an open circuit exists between any
segments, replace the armature.
COMMUTATOR SEGMENT
6.
Place the armature on an armature tester. Hold a
hacksaw blade on the armature core. If the blade is
attracted to the core or vibrates while the core is
turned, the armature is shorted. Replace the arma-
ture.
ARMATURE TESTER
HACKSAW BLADE
ARMATURE
7. With an ohmmeter, check that no continuity exists
between the commutator and armature coil core,
and between the commutator and armature shaft. If
there is continuity, replace the armature.
SHAFT
COIL CORE
COMMUTATOR
HIGH
MICAProCarManuals.com
Page 333 of 1954

Starting Syste m
Starte r Brus h Holde r Tes t
1.Chec k tha t ther e is n o continuit y betwee n th e an d
brush holders . I f ther e i s continuity , replac e th e
brus h holde r assembly .
BRUSH HOLDE R
BRUSH HOLDE RBRUSH HOLDE R
2.Inser t th e brus h int o th e brus h holder , an d brin g th e
brus h int o contac t wit h th e commutator , the n attac h
a sprin g scal e to th e spring . Measur e th e sprin g ten -
sio n a t th e momen t th e sprin g lift s of f th e brush .
SPRIN G SCAL E(Commerciall y available )
SPRING
BRUSH
Spring Tensio n
29. 1 - 37. 8 N (2.9 7 - 3.8 5 kgf , 6.54 8 - 8.48 8 Ibf )
Starte r Brus h Inspectio n
Measure th e brus h length . I f th e lengt h no t withi n th e
servic e
limit, replac e the brus h holde r assembly .
Brush Lengt h
Standar d (NEW )
18 m m
(0.7 1 in)
Servic e Limi t
10 m m
(0.3 9 in)
BRUS H
NOTE : T o sea t ne w brushe s afte r installin g the m in thei r
holders , sli p a stri p o f #50 0 o r #60 0 sandpaper , wit h th e
gri t sid e up , ove r th e commutator , an d smoothl y rotat e
th e armature . Th e contac t surfac e o f th e brushe s wil l b e
sande d to th e sam e contou r a s th e commutator .
BRUSH HOLDE R
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Page 334 of 1954
Planetary Gear Inspection
Check if the planetary gears are worn or damaged. If they
are, also check the condition of the armature shaft gear
and ring gear.
ARMATURE
SHAFT GEAR
RING
GEAR
PLANETARY GEARS
Overrunning Clutch Inspection
Slide the overrunning clutch along the shaft.
Does it move freely? If not, replace it.
1.
2.
Rotate the overrunning clutch both ways.
Does it lock in one direction and rotate smoothly in
reverse? If it does not lock in either direction or it
locks in both directions, replace it.
SHAFT
3.
4.
DRIVE GEAR
If the starter drive gear is worn or damaged, replace
the overrunning clutch assembly; the gear is not avail-
able separately.
Check the condition of the torque converter ring gear
if the starter drive gear teeth are damaged.ProCarManuals.com
Page 335 of 1954

Starting Syste m
Overrunnin g Clutc h Remova l
1. Pu t th e en d o f a pip e (inne r diamete r 1 3 m m (0.5 1 in) )
agains t th e pinio n stop , an d strik e th e pip e t o forc e
the pinio n sto p ove r th e sprin g clip .
A: 1 3 m m (0.5 1 in)
PINIO N STO P
PIPE
SPRIN G CLI P
PLANETAR Y GEA R SHAF T
NOTE: B e carefu l no t t o damag e th e planetar y gea r
shaft whe n strikin g th e pipe .
2. Remov e th e sprin g cli p the n pul l th e pinio n sto p
and overrunnin g clutc h of f th e shaft .
SPRIN G CLI P
PINIO N STO P
Starte r Reassembl y
NOTE: Us e th e illustratio n o n pag e 4- 8 a s referenc e fo r
reassembly .
1 . Pr y bac k eac h brus h sprin g wit h a screwdriver , the n
positio n th e brus h abou t halfwa y ou t o f it s holder ,
an d releas e th e sprin g t o hol d i t there .
2 . Instal l th e armatur e i n th e housing . Nex t pr y bac k
eac h brus h sprin g agai n an d pus h th e brus h dow n
unti l i t seat s agains t th e commutator , the n releas e
th e sprin g agains t th e en d o f th e brush .
3 . Instal l th e en d cove r o n th e brus h holder .
END COVE R
BRUSH HOLDE R
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Page 336 of 1954

Performance Tes t
NOTE : Befor e startin g th e followin g checks , disconnec t
th e wir e fro m termina l M , an d mak e a connectio n a s
describe d belo w usin g a s heav y a wir e a s possibl e (prefer -
abl y equivalen t t o th e wir e use d in th e vehicle) .
Pull-i n Coi l Test :
Connec t th e batter y a s shown . I f th e starte r pinio n pop s
out , i t i s workin g properly .
CAUTION : D o no t leav e th e batter y connecte d fo r mor e
tha n 1 0 seconds .
Disconnec t th e wire .
Hold-i n Coi l Test :
Disconnec t th e batter y fro m th e M terminal . I f th e pinio n
doe s no t retract , th e hold-i n coi l i s workin g properly .
CAUTION : D o no t leav e th e batter y connecte d fo r mor e
tha n 1 0 seconds . Retractin
g Test :
Disconnec t th e batter y als o fro m th e body . I f th e pinio n
retract s immediately , i t i s workin g properly .
CAUTION : D o no t leav e th e batter y connecte d fo r mor e
tha n 1 0 seconds .
NOTE : Th e PC M memor y mus t b e rese t afte r reconnect -
in g th e batter y (se e pag e 11-125 ).
Starte r No-loa d Test :
1. Clam p th e starte r firml y in a vise .
2. Connec t th e starte r t o th e batter y a s show n i n th e
diagra m below , an d confir m tha t th e moto r start s
an d keep s rotating .
3 . I f th e electri c curren t an d moto r spee d mee t th e
specification s whe n th e batter y voltag e i s a t 1 1 V ,
th e starte r i s workin g properly .
Specifications :
145 A or les s curren t dra w
3,30 0 rp m o r mor e rp m
BOD Y(GROUND )
BODY(GROUND )
BATTERY
STARTER
BATTER Y
BODY(GROUND )
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