Pontiac FIREBIRD 1972 Service Manual page 1088

7G-50 1972 PONTIAC SERVICE M A N U A L
INTERMEWATE CLUTCH
PARK NEUTRAL ANDREVERSE
M A N U A L L O W
DIRECT CLUTCH
M A N U A L L O W
REVERSE A N D L O W
D E T E N T M O D U L
D E T E N T M O D U L A T
INTERMEDIATE CLUTCH
M O D U L A T O R
E R M E D I A T E CLUTI
M A N U A L L O W
REVERSE NEUTRAL A N D D R I V
Fig. 7G-77 Valve Body Oil Passages
ASSEMBLE NOTE: Free length o f spring is 1 15/16" by
1/4" diameter.
Position valve body with cored face ur, and ac-
cumulator piston bore a t upper left corner.
5.
Beginning a t top right hand bore, install detent
regulator valve spring seat onto stem end of valve and
install detent regulator valve, seat and detent regula-
tor valve spring into bore. Compress spring and in-
stall retaining pin below flush with machined face.
NOTE: Free length of spring is 1 7/8" by 9/16''
diameter.
In next bore down, install manual low control valve
with stem end out, manual low control valve spring
6 .
and plug. Compress plug and install retaining pin
below flush with machined face.
NOTE: Free length of spring is I 1/2
"
by
7/16''
diameter.
In next bore down, install 1-2 shift valve with stem
end out, install control valve spring into its bore in
1-2 shift control valve and both into 1-2 shift control
valve sleeve. Install control valve sleeve assembly into
bore, compress sleeve and install retaining pin below
7.
flush with machined face.
In next bore down, install 2-3 shift valve with stem
end out and 2-3 shift valve spring with narrow end in.
Install control valve spring into 2-3 shift control
valve and install both into 2-3 shift control valve
sleeve. Install sleeve assembly into bore, compress
sleeve and install retaining pin below flush with ma-
chined face.
NOTE: Free length of shift valve spring is 2
1/16" by 7/8" diameter; free length of control
valve spring is 11/16" by 3/16" diameter.
In last bore down, install pressure regulator valve
with stem end out and pressure regulator valve spring
with narrow end in. Install intermediate boost valve,
then reverse and modulator boost valve with stem
end out into boost valve sleeve. Install sleeve assem-
bly into bore, compress sleeve and install retaining
pin below flush with machined face.
NOTE: Free length of spring is 1 11/16" by
1 7/32" diameter.
If removed, install metal oil seal ring to direct clutch
accumulator piston.