Assemble Governor; Inspect Front Servo; Rear Servo - Pontiac TRANS AM 1977 Service Manual

7A4-38 1 9 7 7 PONTIAC SERVICE MANUAL
PINS
THRUST CAP
Fig. 7A4-63 Governor Assembly
-
Exploded
View
2639
Fig. 7A4-64 Driving Pin From Governor
Assemble Governor
1. Install governor valve in bore of governor sleeve.
2. Install governor weights and springs and thrust cap
on governor sleeve.
3. Align pin holes in thrust cap, governor weight
assemblies and governor sleeve and install new pins. Crimp
both ends of pins to prevent them from falling out.
4. Check governor weight assemblies for free operation
on pins and governor valve for free movement in governor
sleeve.
5. Check for valve opening at entry (feed) and exhaust
ports of governor as follows:
a. Check valve opening at entry (feed) port with a feeler
gage as shown with governor weights extended completely
outward (Fig. 7A4-65).
b. Check valve opening at exhaust port with a feeler gage
as shown by holding the governor weights completely inward
(Fig. 7A4-66).
c. If less than .02OV minimum opening is found, governor
assembly must be replaced.
INSPECT FRONT SERVO
1.
Inspect servo pin for damage (Fig. 7A4-67).
2. Inspect servo piston and oil seal ring for damage. Do
not remove the teflon oil seal ring from the servo piston unless
the ring requires replacement. For service, the oil seal ring
will be aluminum.
3. Check fit of servo pin in piston.
REAR SERVO
DISASSEMBLE
1. Remove rear accumulator piston from rear servo
piston (Fig. 7A4-68).
2.
Remove E-ring, retaining rear servo piston to band
apply pin (Fig. 7A4-69).
3. Remove rear servo piston and seal from band apply
(servo) pin (Fig. 7A4-70).