Governor Driven Gear Replacement; Checking Exhaust Port Opening; Checking Feed Port Opening; Removing Governor Gear Retaining Pin - Pontiac Grand Prix Service Manual

TURBO HYDRA-MATIC-M-40
73-23
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.
10. Check for valve opening at entry (feed) and
exhaust parts of governor as follows:
a. Check valve opening at entry (feed) with a feeler
'gage, holding governor as shown with governor
weights extended completely outward (Fig. 7E-6 1A).
b. Check valve opening at exhaust with feeler gage,
holding governor as shown with governor weights
c~mpletely inward (Fig. 7E-61 B).
Fig. 7E-61B Checking Exhaust Port opening'
GOVERNOR DRIVEN GEAR REPLACEMENT
To facilitate governor repdr 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 split pin. Replacement of
gear must be performed with care in the following
manner:
1. Drive out governor gear retaining split pin, using
small punch (Fig. 7E-62).
governor plates installed in
c. If less than .020r1 minimum opening is found,
governor assembly must be repaired.
Fig. 7E-61A Checking Feed Port Opening Fig. 7E-62 Removing Governor Gear Retaining Pin