Mc Leod 1300 Series Bolt On Hydraulic Bearing - Manual (Page 3)

3
This hydraulic bearing is designed with a constant running bearing that will touch the fingers of the clutch
at all times, but does not apply pressure when the clutch is engaged. The assembly consists of four major parts: 1)
Upper Housing, 2) Lower Housing, 3) Piston, 4) Constant running bearing. The unit does not need any tools to
disassemble, unless you want to remove the AN-4 lines. See Fig A & B.
Figure A Figure B
Step 1) Be sure the throw-out bearing is in its full collapsed position. Place assembly on the bench with the bearing
face up. Push down on the bearing face until it stops. Prior to installing the bearing assembly it is strongly
recommended you fabricate a protective cover for the AN -4 lines where these lines exit the bell housing. The
protective cover can be rubber hose, such as heater hose or similar material. This hose should be about 6” in
length for each AN -4 line. Slice the rubber hose lengthwise and slip it over the AN -4 lines and secure with zip ties
or safety wire. This will prevent the AN -4 lines from chafing on the bell housing and prematurely failing.
Remove the bearing retainer/input collar from the front of the transmission. For 1364 Bearing Assemblies:
There is a factory bearing race between the input collar and the input shaft bearing assembly. This race
must be installed between the input shaft bearing and the McLeod bearing assembly! Place the hydraulic
bearing assembly over the input shaft and bolt it onto the front of the transmission. Allen head bolts about ¼”
longer than factory bolts work well. The relief at the rear of the lower housing must be aligned to the transmission
similar to the stock relief position. Note: A small bead of silicone will help seal the lower housing to the
transmission. Remember the line with the bleeder valve must be at the top position!
Muncie and Saginaw Transmissions: If your transmission has a slinger nut (found under the bearing collar) you
must machine or grind the slinger flange off of the nut (approx .200”) to clear the rear of the new bearing housing. The
stock OD of the slinger nut measures 2.00”, when machined the OD should measure 1.800”. See Figure C & D
Caution – The slinger nut is a left hand thread. Remove by rotating clockwise. The throw-out bearing has a seal to
prevent transmission oil from escaping; the original collar did not have this seal. Reinstall slinger nut onto trans.