Direct Clutch Drum To Forward Clutch Housing Needle Roller Bearing; Removing Forward Clutch Retaining Ring And Pressure Plate; Governor Driven Gear Replacement - Pontiac TRANS AM 1977 Service Manual

TURBO HYDRA-MATIC 2 5 0 TRANSMISSION 7A2-35
I
r F O R W A R D CLUTCH PISTON ASSEMBLY
RETAIN ING7
INPUT SHAFT
PISTON RETURN SEAT'
RETAINING RING
FORWARD CLUTCH PRESSURE PLATE"
FIG. 7A2-77 FORWARD CLUTCH ASSEMBLY - EXPLODED VIEW
DIRECT CLUTCH DRUM TO
FORWARD CLUTCH HOUSING
NEEDLE ROLLER BEARING
Housing Needle Roller Bearing
side and need not be identified.
2. Remove governor valve from governor sleeve. Be
careful not to damage valve.
3. Perform following inspections and replace governor
driven gear, if necessary.
Inspection
1. Wash all parts in cleaning solvent, air dry and blow
out all passages.
2. Inspect governor sleeve for nicks, burrs, scoring or
galling.
3. Check governor sleeve for free operation in bore of
transmission case.
4. Inspect governor valve for nicks, burrs, scoring or
galling.
5. Check governor valve for free operation in bore of
governor sleeve.
PRESSURE PLATE
4423
1
Fig. 7 A 2 - 7 9 Removing Forward
Clutch
Retaining Ring
and Pressure Plate
6. Inspect governor driven gear for nicks, burrs or
iamage.
7. Check governor driven gear for looseness on governor
sleeve.
8. Inspect governor weight springs for distortion or
damage.
9. Check governor weights for free operation in their
retainers.
10. Check valve opening at entry and exhaust (.020 inch
minimum).
GOVERNOR DRIVEN GEAR
REPLACEMENT
To facilitate governor repair in the field, a governor
driven gear and replacement pins are available for service use.
The service package contains a nylon driven gear, two
governor weight retaining pins and one governor gear retainer