Pontiac tempest 1968 Service Manual page 464

T U R B O H Y D R A - M A T I C TRANSMISSION
7 E - 2 9
111
11
i""
8 1
* I wmm- %
REGULATOR DETENT
VALVE VALVE
Fig. 7E-68 Installing Detent Regulator and V a l v e
2. Inspect bushing for c r a c k s , scratches or
distortion.
3. Inspect body for cracks or scored bores.
4. Check a l l springs for distortion or collapsed
coils.
5. Clean governor o i l screen In clean solvent.
ASSEMBLY OP CONTROL VALVE
1. Install front accumulator spring and piston into
valve body.
2. Install special t o o l J 21885 and compress
spring and piston and secure with retaining E - r i n g .
3. Install 1-2 p r i m a r y accumulator spring i n lower
left bore.
4. Install 1-2 p r i m a r y accumulator valve.
5. Install 1-2 accumulator valve with stem end out
Into the 1-2 accumulator bushing and install the
bushing into the bore.
6. Install
1-2 accumulator secondary spring and
bore plug. Compress plug and Install grooved r e ­
taining pin from cast surface side of the valve body,
with the grooves entering the pin hole last. Tap pin
with hammer until flush with cast surface.
7. In next bore up, Install detent spring and
spacer. Compress spring and secure with' small
screwdriver (Fig. 7E-68).
8. Install detent regulator valve, wide land f i r s t .
9. Install detent valve, narrow land f i r s t .
10. Install bore plug (hole out), depress spring by
pressing In on plug and install retaining pin. Remove
screwdriver.
11. In lower right hand bore, install 3-2 valve.
(Except PB and PT models)
12. Install 3-2 spring, spacer, bore plug (hole
out) and retaining pin (Except PB and PT models).
13. In next bore up, install 2-3 valve, stem end
out, and 3-2 intermediate spring.
14. Install 2-3 modulator valve into bushing and
install both parts into valve body bore.
15. Install 2-3 valve spring and retaining pin.
16. In next bore up, install 1-2 valve, stem end
out (Small land f i r s t ) .
17. Install the 1-2 regulator valve train as follows:
a. (All models except PA and PC) Install the
1-2 regulator valve, spring and detent valve Into
bushing, aligning spring In bore of detent valve
and Install parts into valve body bore.
b. (Models PA and PC) Install the 1-2 modu­
lator spring and 1-2 modulator valve into the
1-2 modulator bushing. Install parts into valve
body bore.
18. Compress bushing against spring and install
retaining pin.
19. Install the governor o i l screen in the gover­
nor o i l feed hole (Fig. 7E-67).
NOTE: Screen is held in place by the governor
feed pipe when installed on the transmission case.
2 0 . Install manual valve with detent pin groove to
the right.
Oil PUMP
DISASSEMBLY O F OIL PUMP (Fig. 7E-69)
1. Place o i l pump assembly i n hole in bench or
holding fixture J 6116 and J 21364 adapter.
2. Compress regulator boost valve bushing against
pressure regulator spring and remove snap ring,
using snap ring pliers (Fig. 7E-70).
3. Remove regulator boost valve bushing and
valve.
4. Remove pressure regulator spring.
5. Remove regulator valve, spring retainer and
spacer(s), i f present (Fig. 7E-71).
6. Remove pump cover to body attaching bolts.
7. Remove pump cover from body.