Chevrolet 1977 10 Series, Repair Manual, Page: 300 / 468

(350)7A-16
OVERHAUL MANUAL
J-2 3 0 6 9
Fig. 7 A - 5 3 B - R e m o v i n g A c c u m u l a t o r Piston Cover R eta in in g
Ring
Fig. 7 A - 5 4 B - - ln t e r m e d ia t e C lu tch A c c u m u la t o r C o m p o n e n t s
Fig. 7A-5 5B-Rem ovin g Direct Clutch Accumulator Piston
Retaining "E" Ring
VALVE BODY DISASSEMBLY, INSPECTION,
AND REASSEMBLY (FIG. 7A-56B)
Disassembly
1. Position valve body assembly with cored face up and
direct clutch accum ulator piston pocket positioned as shwon
in Figure 7A-56B.
2. Remove manual valve from lower left hand bore.
3. From lower right hand bore remove the pressure
regulator valve train retaining pin, boost valve sleeve,
interm ediate boost valve, reverse and m odulator boost valve,
pressure regulator valve spring, and the pressure regulator
valve.
4. From the next bore, remove the 2-3 shift valve train
retaining pin, sleeve, control valve spring, 2-3 shift control
valve, shift valve spring, and the 2-3 shift valve.
5. From the next bore, remove the 1-2 shift valve train
retaining pin, sleeve, shift control valve spring, 1-2 shift
control valve, and the 1-2 shift valve.
6. From the next bore, remove retaining pin, plug,
manual low control valve spring, and the m anual low control
valve.
7. From the next bore, remove the retaining pin, spring,
seat, and the detent regulator valve.
8. Install Tools J-22269 and J-24675 on direct clutch
accum ulator piston and compress piston only enough to
remove retaining "E" ring (fig. 7A-55B).
CAUTION: Piston may be damaged i f piston is over
compressed.
9. Remove direct clutch accum ulator piston, and metal
oil seal ring, and spring.
10. From the next bore down from the direct clutch
accum ulator, remove the detent actuating lever bracket bolt,
bracket, actuating lever and retaining pin, stop, spring
retainer, seat, outer spring, inner spring, washer and detent
valve.
Inspection
1. Inspect all valves for scoring, cracks and free
movement in their respective bores.
2. Inspect valve body for cracks, scored bores,
interconnected oil passages and flatness of m ounting face.
3. Check all springs for distortion or collapsed coils.
Reassembly
1. Install direct clutch accum ulator piston spring and
piston into valve body.
2. Install special toosl J-22269 and J-24675 and compress
spring and piston only enough to install retaining ring.
NOTE:
Align piston and oil seal ring when entering
bore.
3. Install the detent valve, washer, outer spring, inner
spring, spring seat, and spring retainer. Install detent valve
stop and detent valve actuating bracket. Torque bolt to 52
in. lbs. Assembly detent actuating lever with retaining pin.
4. Install the pressure regulator valve, spring, reverse
and m odulator boost valve, interm ediate boost valve, boost
valve sleeve and retaining pin.
5. In the next bore up, install 2-3 shift valve, shift valve