B&M 70239 SHIFT IMPROVER KIT - Manual (Page 2)

TH-700 DEEP OIL PAN 70289 The
B&M TH-700 deep oil pan ads ap-
proximately 3 quarts of extra oil ca-
pacity to your transmission. The
additional oil capacity will help re-
duce the temperature of your trans-
mission, thereby promoting longer
transmission life.
TEMPERATURE GAGE KIT 80212
Most transmission and converter fail-
ures can be traced directly to exces-
sive heat. The B&M transmission tem-
perature gage can save you a costly
repair bill by warning you ahead of
time of an overheated transmission.
The B&M temperature gage is ex-
tremely accurate and dependable, it
comes with all necessary hardware
and is easy to install.
INTRODUCTION
This kit can be installed in a few
hours by carefully following the in-
structions. Read all instructions
first to familiarize yourself with
the parts and procedures. Trans-
mission components are precision
fit, work slowly and do not force any
parts. Burrs and dirt are the number
one enemies of an automatic trans-
mission. Cleanliness is very impor-
tant, so a clean work surface from
which oil can easily be removed is
necessary.
This kit contains all parts nec-
essary to obtain two different levels
of performance, depending on in-
tended use:
1. Heavy Duty; Towing, campers,
motor homes and 4-wheel drive ve-
hicles. Shift feel is firm and posi-
tive.
2. Street; Dual purpose perfor-
mance vehicles, street and strip
performance cars. Street level pro-
duces the firmest shift feel.
DISASSEMBLY
Automatic transmissions nor-
mally operate at temperatures be-
tween 150 F and 250 F. We sug-
gest the vehicle be allowed to cool
for several hours before disassem-
bly to avoid burns from hot oil and
parts. Have an oil drain pan ready to
catch oil and a tray on which to put
small parts so they won’t get lost.
The vehicle should be raised so
bore, if so remove O-ring (or seal)
from pump.
STEP 3. (See Figs. 2 and 3) There
are a variety of different wiring har-
nesses used on the TH700. Before
proceeding further make a sketch
and some notes describing your
particular unit, recording which con-
nectors go to which switch. Notice
that the connectors are color coded.
N o w r e m o v e c o n n e c t o r s f r o m
switches. Unplug the wiring har-
ness from the case electrical con-
nector by prying the lock tab away
from the plug and pulling down on
the plug, do not pull on the wires.
Removing solenoid is not required,
just tie the wires up out of the way.
STEP 4. Remove all except the
center valve body bolt (See Fig. 2.)
Beginning with the mid 1987 model
year, TH-700’s have a tube cross-
ing over the valve body. This tube is
removed by simultaneously pulling
both ends out of their respective
bores. With the tube removed (if
equipped) hold the valve body up
firmly with one hand and remove the
remaining bolt slowly. There are
several check balls in the valve body there is at least 2 feet ground clear-
ance for ease of installation and
safety.
CAUTION: MAKE SURE THE VE-
HICLE IS RIGIDLY AND SECURELY
SUPPORTED, JACK STANDS,
WHEEL RAMPS OR A HOIST
WORK BEST, DO NOT USE JACKS
ALONE.
STEP 1. The TH700 does not have
a drain plug. Position your drain
pan beneath the transmission to
catch oil. Remove the oil pan by
removing the rear bolts first, then
work towards the front. Loosen but
do not remove the three front bolts.
If the pan sticks to the gasket,
insert a flat screwdriver between
the pan and case and pry down
gently to break pan loose. Now
remove the front three bolts slowly
to permit draining the rest of the oil.
Remove pan gasket material from
the pan and case.
STEP 2. Remove the oil filter by
gently pulling it straight down. The
pickup tube has an O-ring (or seal)
around the end that fits into the
pump housing. Sometimes the O-
ring (or seal) remains in the pump
Figure 1
2