326
GEARCASE SERVICE, 75 – 90 HP MODELS
GEARCASE DISASSEMBLY
Remove t he four d riveshaft bea ring h ousing
screws.
Remove t he drivesh aft from th e gearcase . The
bearing housing, shims, thrust bearing, and thrust
washer will come out with the driveshaft.
If driveshaft cannot be remove d, refer to Locked
Driveshaft Removal on p. 326.
Remove the pinion gear from the gearcase.
Locked Driveshaft Removal
The driveshaft to pinion taper is a locking taper. If
necessary, use Driveshaft Puller, P/N 390706, and
Backing Plate , P/N 325867, to break the lock.
Install the too ls as shown by clamp ing them
around t he d riveshaft. Alternately tighten the two
vertical screws aga inst the backing plate inserted
between th e p uller an d th e g earcase until t he
driveshaft pops loose from the pinion.
If upper driveshaft becomes separated from lower
driveshaft, use Lower Driveshaf t Puller ,
P/N 342681, t o remove . Inst all puller into lower
driveshaft and turn 90° to position hook under pin
in driveshaft. Thread Slide Hammer, P/N 391008,
into puller and remove driveshaft.
1. Driveshaft bearing housing screws COA3153
1. Bearing housing
2. Shims
3. Thrust bearing
4. Thrust washer
COA3558
COA3159
1. Drive shaft
2. Puller
3. Backing plate
41177
46905
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