Chevrolet 10 series 1973, Overhaul Manual

Page: 355 / 522

7 A -5 2 A U T O M A T IC T R A N S M IS S IO N
4. Remove low and reverse roller clutch assembly (fig.
92M).
Inspection
1. Inspect roller clutch inner and outer race for
scratches and indentations.
2. Inspect rollers for wear and roller springs for
distortion.
Assembly
1. Install low and reverse roller clutch assembly to
inner race with oil holes toward rear of
transmission.
2. Install low and reverse overrun clutch outer race.
3. Install low and reverse clutch to cam retaining ring.
NOTE: Low and reverse overrun clutch inner
race should free wheel in the clockwise
direction only.
GOVERNOR ASSEMBLY
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. The driven gear can be
serviced separately.
It is necessary to disassemble governor assembly in order
to replace driven gear. Disassembly may also be
necessary due to improper operation. In such cases,
proceed as follows:
Disassembly
1. Cut off one end of each governor weight pin and
remove pins, governor thrust cap, governor weights,
and springs. Governor weights are interchangeable
from side to side and need not be identified (fig.
93M).
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.
6. Inspect governor driven gear for nicks, burrs, or
damage.
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.
L O W & R E V E R S E R O L LE R
C L U T C H A S S E M B L Y
PINS
A
'l
THRUST CAP
SECONDARY WEIGHT (2) PRIMARY WEIGHT (2)
Fig. 9 2 M -R e m oving Overrun Roller Clutch Assembly
Fig. 9 3 M -G o ve rn o r Assem bly-E xploded View Typical
OVERHAUL MANUAL