Checking Governor Feed Port Opening - Pontiac Grand Prix Service Manual

TURBO HYDRA-MATIC TRANSMISSION M-38 7G-10
AS SHOWN TO
CHECK FEED PORT
S THAN
,020"
THE
VERNOR ASSEMBLY
S T BE REPLACED
Fig. 76-42 Checking Governor Feed Port Opening
2. Support governor on 3/16" plates installed in
exhaust slots of governor sleeve, place in arbor press
and, with a long punch, press gear out of sleeve.
3. Carefully clean governor sleeve of chips that remain
from original gear installation.
4. Support governor on 3/16" plates installed in
exhaust slots of sleeve, position new gear in sleeve and,
with a suitable socket, press gear into sleeve until
nearly seated. Carefully remove any chips that may
have shaved off gear hub and press gear in'until it
bottoms on shoulder (Fig. 76-41).
5. A new pin hole must be drilled through sleeve and
gear. Locate hole position 90 degrees from existing
hole, center punch and, while supporting governor,
drill new hole through sleeve and gear, using a
standard (1 /8") drill.
6. Install new retaining split pin.
7. Wash governor assembly thoroughly to remove any
chips that may have collected.
ASSEMBLY
1. Install governor valve in bore of governor sleeve,
large end first.
2. Install governor weights, springs and thrust cap on
governor.
NOTE: Lip of secondary weight must be over end of
valve.
3. Align pin holes in thrust cap, governor weights,
governor sleeve and install new pins. After installing,
crimp both ends of pins to prevent their falling out.
4. Check governor weight assemblies for free move-
ment on pins.
9. Check governor valve for free movement in
governor sleeve.
6. Suspending governor assembly by its driven gear
(weights out), check valve opening at feed port.
Opening must be .020" minimum (Fig. 76-42).
7. Check governor valve opening at exhaust port while
holding weights completely inward. Opening must be
.020" minimum.
NOTE: If less than .020' minimum feed port or exhaust
port is found governor assembly must be replaced.
VALVE BODY ASSEMBLY
DISASSEMBLY (Fig. 76-43)
1. Position valve body assembly with cored face up
and accumulator piston assembly at upper left corner.
2. Remove manual valve and link assembly from lower
left hand bore.
3. From next bore up, Temove retaining pin, detent
valve actuating lever, bolt, detent actuating lever
bracket, detent valve stop, spring seat retainer, spring
seat, spring and detent valve.
4. Using Accumulator Compressor J 21885 on direct
clutch accumulator piston, compress piston and re-
move retainer "E" ring (Fig. 76-44).
5. Remove tool, direct clutch accumulator piston, metal
oil seal ring and direct clutch accumulator spring.
6. From lower right hand bore, compress boost valve
sleeve and, turning valve body over, remove retaining
pin, boost valve sleeve assembly, pressure regulator
valve spring and pressure regulator valve. Then,
remove reverse and modulator boost valve and
intermediate boost valve from boost valve sleeve.
7. From next bore up, compress 2-3 shift control valve
sleeve and remove retaining pin, 2-3 shift control valve
sleeve assembly, 2-3 shift valve spring and 2-3 shift
valve. Then, remove 2-3 shift control valve and control
valve spring from 2-3 shift control valve sleeve.
8. From next bore up, compress 1-2 shift control valve
sleeve and remove retaining pin, 1-2 shift control valve
sleeve assembly and 1-2 shift valve. Then, remove 1-2
shift control valve and control valve spring from 1-2
shift control valve sleeve.
9. From next bore up, compress manual low control
valve plug and remove retaining pin, plug, manual low
control valve spring and manual low control valve.