Model 120S; Installation, Lower Gear Housing–Adapter Housing - Volvo Penta MS2 Workshop Manual

Repair - lower gear housing, sailboat drive
56. On the other hand, if the marking pattern is dis-
placed in relation to the figure above, the thickness of
the shims underneath the front bearing race must be
increased and the thickness of the shims behind the
bearing race in the rear bearing housing must be re-
duced to the same extent.
NOTE! In this case, the propeller shaft will be dis-
placed backwards (away from the pinion), which
means that the flank clearance will be too large. This
can not be changed in any other way than by remov-
ing the vertical shaft, pressing off the roller bearings
and changing the ferrule.
Install a new ferrule. Then re-install the bearings and
put the shaft back in the gear housing. Turn round to
establish the new flank clearance and check the
marking pattern. Please refer to items 50-51.
57. When the correct flank clearance has been ob-
tained, disassemble the tool and propeller shaft, and
wash off all marker dye from the crown wheel and pin-
ion.
Re-install the propeller shaft and rear bearing housing.
Please refer to item 47. Then install the upper, outer
bearing race. Use tool no. 884757.
74
884757

Model 120S

Installation, lower gear
housing–adapter housing
Preferably use the shims which were installed previ-
ously, if only new bearings have been installed. Shim
thickness can also be measured as in the points be-
low.
58. Check that there is no end float in the vertical
shaft. Then install spacer ring (1).
9985472
59. Use a depth micrometer 9985472 to measure the
distance (A) from the division plane down to the spac-
er ring (1).
1
A
1