Pontiac FIREBIRD 1972 Service Manual page 943

78-54 1972 PONTIAC SERVICE MANUAL
12. Remove output shaft-to-rear internal gear thrust
14. Remove rear internal gear-to-sun gear thrust bearing
bearing and two (2) races.
and two (2) races.
13. Remove rear internal gear and mainshaft (Fig. 7E-
15. Remove rear internal gear-to-mainshaft snap ring to
89). remove mainshaft (Fig. 7E-90).
NOTE: Do not drop bearings.
OVERHAUL OF MAJOR UNITS
GOVERNOR ASSEMBLY
OVERHAUL
All components of governor assembly, with exception of
driven gear, are a select fit and each assembly is calibrated.
The governor, including the driven gear, is serviced as a
complete assembly. However, the driven gear can also be
serviced separately.
It is necessary to disassemble governor assembly in order
to replace driven gear. Disassembly may also be necessary
due to foreign material causing improper operation. In
such cases, proceed as follows:
DISASSEMBLE
and springs. Governor weights are interchangeable
from side to side and need not be identified (Fig.
7E-9 1).
2. Remove governor valve from governor sleeve. Be
careful not to damage valve or sleeve.
3. Perform the following inspections and replace gover-
nor driven gear, if necessary.
INSPECT
1. Wash all parts in cleaning solvent, air dry and b l o ~
out all passages.
2. Inspect governor sleeve for nicks, burrs, scoring or
galling.
1. Cyt off one end of each governor weight pin and
3. Check governor sleeve for free operation in bore of
remove pins, governor thrust cap, governor weights
transmission case.
SLEEVE A N D CARRIER ASSEMBLY
GEAR RETAINING PIN
PINS
VALVE
DRIVEN GEAR
SPRINGS (2)
THRUST CAP
Fig. 7E-9 1 Exploded View of Governor