Turbo Action 27253 Turbo Hydro 200 Manual Valve Body (PRN321) - Manual (Page 2)

Part # 27253 2 2/14/08
STEP #6: Remove remaining six valve body bolts. Lower valve body carefully. Be careful to not drop
manual valve (Fig. #5). Also, there will be one (1) ball sitting on the plate (remove) and four
(4) balls sitting in the valve body. In addition, there will be a large spring sitting in the valve
body. (Fig. #6). Discard the one (1) ball sitting on the plate, the spring,#1, #2 and #4 balls.
See Fig. #8. Do Not discard #3 ball.
STEP #7: Remove old spacer plate and gaskets. Be sure all gasket material is removed from the
transmission case.
STEP #8: Tap governor hole 5/16-18 and install Set Screw (#24126). This hole must be deep enough so
that the Set Screw is below the surface of the case. Suggest Loctite on Set Screw. Fig. #9.
STEP #9: Be sure #3 Ball is placed into new valve body. See Fig. #8.
STEP #10: Place valve body gasket on valve body (V.B. marked on gasket #27097). See Fig. #7.Now
place valve body spacer plate on top of gasket.
STEP #11: Place case gasket #27098 on top of valve body spacer plate. This is the gasket marked C.
Fig. #7.
SPECIAL NOTE:
Use petroleum jelly to keep gaskets from moving around.
Maximum Performance and Durability Do Steps #12- #15, otherwise skip to Step #16.
STEP #12: Remove front pump assembly and drum assemblies from transmission. NOTE: You should
use lockup transmission parts for best results.
STEP #13: Remove direct clutch drum lip seal. CAUTION: DO NOT remove any lip seals from the direct
clutch piston.
STEP #14: Remove ball check that is located in the front pump assembly.
STEP #14A Tap Reverse Port hole 3/8”-16 and install Set Screw (#23138).This hole must be deep enough
so that the Set Screw is flush or slightly below the surface of the case. Suggest Loctite on Set
Screw Fig.10.
STEP #15: Reinstall all parts per General Motors specifications.
STEP #16: Raise valve body up carefully into transmission being sure that manual valve lines up properly
with shift linkage. Fig. #5. NOTE: Do Not reinstall ball that set on plate or the big spring.
.
STEP #17: Install all valve body bolts finger tight, except manual detent roller spring bolt (Fig. #4).
Suggest using two filter bolts thru filter holes to guide valve body into place. This will
keep gaskets lined up. Then install rest of bolts before tightening up any and be sure
you keep manual valve lined up.
STEP #18: Now place bolt and manual detent roller and spring into place, being sure that manual valve
was lined up properly. See Fig. #4. Tighten all bolts 6-8 ft. lbs. starting from the center of
valve body out.
STEP #19: Install filter and filter gasket using the two long filter bolts. Tighten 6-8 ft. lbs.
CAUTION : If installing a new filter, there are two types, one for lockup transmissions and
one for non-lockup. This valve body requires the lock-up type pan and filter or
an extra deep pan with proper filter.
Non-lockup pan is approximately 2 1/8” deep. Filter sits approx. 2” above pan
rail.
Lockup pan is approximately 2 9/16” deep. Filter sits approx. 2 1/2 “ above
pan rail.