GMC 1976 ZEO 6083 Maintenance Manual page 514

7- 66 TRANSMISSION
3 . Install valve body spacer on transmission .
NOTE :
Valve body spacer to case gasket should
extend approximately 1/8 inch beyond the
spacer plate, over the void case channel, Figure
98 . If service gaskets are being installed, the
valve body spacer to case gasket has an exten-
sion which will cover the void case channel.
4. Install valve body to spacer gasket .
5 . Install guide pins.
6. Install the "O" ring seal on the electrical con-
nector .
7. Lubricate and install electrical connector with
lock tabs facing into case, positioning locator tabs up
on side of case .
CONTROL VALVE ASSEMBLY
(FIGURE 99)
DISASSEMBLY
Figure 100-Removing Front Accumulator
3. Position control valve assembly with cored
face up and accumulator pocket on bottom .
4. Remove manual valve from upper bore .
5 . Install Control Valve Accumulator Piston In-
staller, J-21885, on accumulator piston, compress
piston and remove E-ring retainer, Figure 100.
6. Remove Installer, J-21885, and remove ac-
cumulator piston and spring .
7. Using pin punch, remove retaining pin from
lower left bore, pressing on pin from outer side of
valve body . Remove 2-3 modulator bushing, 2-3 shift
valve spring, 2-3 modulator valve, 3-2 intermediate
spring and 2-3 shift valve from left bore.
NOTE:
2-3 modulator valve will be inside of 2-3
modulator bushing.
8. Using pin punch, remove retaining pin from
lower center left bore, pressing on pin from outer side
of valve body . Remove 1-2 modulator bushing, 1-2
regulator spring, 1-2 detent valve, and 1-2 regulator
valve from lower left center bore .
OTHER COMPONENTS OUT OF BORE.
10 . Remove bore plug, detent valve, detent
regulator valve, spacer and detent regulator valve
spring from upper left center bore .
11 . Remove retaining pin from bottom bore on
left side by prying out with a pair of long nose pliers .
WARNING : HOLD HAND OVER BORE WHEN
REMOVING RETAINER PIN AS 3-2 VALVE
SPRING MAY FORCE BORE PLUG OUT .
12 . Remove bore plug, 3-2 valve, spring and
spacer from bottom left bore .
13 . Remove retaining pin from top bore by pry-
ing out with long nose pliers from outer side of valve
body.
14 . Remove bore plug, 1-2 accumulator valve and
the 1-2 accumulator primary spring .
When disassembling control valve, make certain
that springs are accurately identified so that they can
be properly reassembled .
1 . Position control valve assembly with cored
face down .
NOTE:
1-2 regulator valve and spring and 1-2
detent valve may be inside of 1-2 modulator
bushing.
9. Using pin punch, remove retainer pin from
upper left center bore by pressing on outer side of
valve body .
2. Remove two screws securing detent solenoid to
control valve body and remove downshift solenoid
WARNING: HOLD HAND OVER BORE WHEN
and gasket .
REMOVING RETAINER PIN AS DETENT
REGULATOR VALVE SPRING MAY FORCE