Pontiac FIREBIRD 1972 Service Manual page 769

ENGINE ELECTRICAL 6E-7
2. Secure cover with screws and install nuts on motor
and switch terminals.
1. Disconnect field strap.
2. Remove solenoid to drive housing attaching screws,
motor terminal bolt, and remove solenoid.
CAUTION: Be sure to install allinsulator wash-
ers under attaching screws and nuts.
3. Remove solenoid return spring.
DISASSEMBLE STARTER
4. Remove shift lever pivot pin.
5. Remove starter thru bolts.
1. Disconnect field straps from terminal on solenoid.
6. Separate starter end housing from motor frame.
2. Remove thru bolts.
7. Remove shift lever.
3. Remove commutator end frame, field frame and ar-
mature from drive housing.
8. Replace by reversing above procedures.
4. Remove overrunnin'g clutch from armature shaft as
follows:
C H E C K C U R R E N T D R A W
a. Slide thrust collar (Fig. 6E-7) off end of armature
shaft.
Check current draw of hold-in winding by connecting a
variable source of voltage (in series with an ammeter) to
the switch terminal of solenoid and ground. Ammeter
should read 14.5-16.5 amps. @ 10 volts. To check the
current draw of both windings, ground the solenoid motor
terminal and connect a source of voltage (in series with an
ammeter) to the switch terminal of solenoid and ground.
The ammeter should read 41-47 amps. @ 10 volts.
b. Slide a standard half-inch pipe coupling or other
metal cylinder of suitable size (an old pinion of
suitable size can be used if available) onto shaft so
end of coupling or cylinder butts against edge of
retainer (Fig. 6E-8).
Tap end of coupling with hammer, driving re-
tainer towards armature and off snap ring.
CAUTION: Either of the above checks must be
completed in a minimum length of time to pre-
vent overheating solenoid windings. Heating
will cause the current draw readings to be be-
low specifications which are based on a temper-
ature of 80°F.
c. Remove snap ring from groove in shaft, using
pliers or other suitable tool. If snap ring is too
badly distorted during removal, it will be neces-
sary to use a new one when reassembling clutch.
DISASSEMBLE
d. Slide retainer and cldtch from armature shaft.
d
1. Remove nuts from motor terminal (marked "B") and
switch terminal.
2. Remove two screws securing cover and carefully
remove cover.
CAUTION: Terminal studs have welded lead
connections; therefore be extremely careful not
to twist during removal of nuts.
SPIRAL SPLINES
THRUST
COLLAR
If solenoid contacts are slightly burned or dirty, con-
tacts should be cleaned. When contacts are badly
burned, burned parts should be replaced.
ASSEMBLE
1. When assembling cover on solenoid, make sure the
terminal studs are properly positioned in cover. The
cover gasket must be centered under cover to insure
proper sealing.
I
Fig. 6E-7 Armature and Overrunning Clutch Assembly