B&M 10225 SHIFT IMPROVER KIT - Manual (Page 3)

and held in place with a pinch bolt. Use a 7/16" wrench or
socket and loosen the bolt but do not remove it. Use
screwdriver to pry the lever up and off the shaft. Place
transmission shift lever in low gear and shifter should also be
in low gear. Loosen the pinch bolt and pry the selector lever
off the larger manual lever shaft. Let the two levers hang free.
STEP 3. Remove the valve body by removing the ten bolts
with a 7/16" wrench or socket. There is a spring between the
valve body and the case so remove the last bolt slowly. This
will also reduce the amount of oil splatter as the valve body
is removed. Pull valve body down and forward to disengage
park rod from back of case. It may be necessary to rotate
driveshaft slightly to disengage the rod. There will be a spring
(1-2 accumulator spring) between the valve body and case
(See Fig. 3), remove and discard it. Place valve body in oil pan
and set them on work bench.
STEP 4. Adjust front band. Loosen locknut. (See Fig. 2)
Tighten band adjusting screw to 72-in. lbs. (snug). Then back
off adjusting screw two full turns. Hold band adjusting screw
and tighten ¾” jam nut securely.
STEP 5. Your work bench should be clean as stressed
in the beginning of these instructions. Place the valve
body on the bench with the filter side up. Remove the three
filter screws and remove the filter. Set the screws aside in
a small tray so they won’t be lost. As you disassemble the
valve body, when removing a valve and a spring, keep them
together.
Now remove the pressure regulator spring retainer located
next to the selector lever. (See Fig. 4) Remove three
shorts screws to remove retainer. Late model valve bodies
with large cage will require removal of one long valve body
screw. (See Fig. 5)
Figure 3
1-2 accumulator.
Remove spring
Park rod attached
to valve body
selector lever.
Figure 4
Figure 5
CAUTION: Hold your hand against the retainer while
removing the screw (See Fig. 4) so the large pressure
regulator spring does not fly out. Remove the retainer and
adjustment plate, pressure regulator spring and converter
valve spring and set them aside. Remove the regulator valve
and converter valve and lay them next to their respective
springs. Large cage models: Be careful that the throttle
pressure valves do not fall out when working on the valve
body.
STEP 6. Set the valve body on the bench with the filter side
up and the selector lever assembly in the top left corner.
The valve body consists of: (1) thick casting containing the
valve bores and will be referred to as the casting; (2) a thin
stamped steel plate with numerous different shaped holes
called a separator plate, and; (3) a thin aluminum casting
that looks like a maze called a transfer plate.
B&M RACING CHATSWORTH, CA www.bmracing.com
3/7