Specifications

3
51
ASSEMBLING AND TESTING THE ENGINE
DISASSEMBLING AND
REASSEMBLING THE WATER
PUMP
Should it be necessary to intervene on the
two bearings or oil seal, you must disas-
semble the shaft and then the entire clutch
casing.
To access the impeller to verify its wear-
and-tear state you must remove the pump
cover by loosening the three screws that fa-
sten the cover to the internal casing of the
clutch. Then open the special snap ring 36
and extract the impeller.
Verify that the front part of the impeller is
not damaged. Otherwise, replace the ele-
ment.
Check the wear-and-tear state of the oil seal
and replace it if not intact.
3.16.1
WATER PUMP UNIT
The pump unit consists of a centrifugal im-
peller 26 that supports the shaft 21, which
is fastened to the pump gear 20 by means
of the roller 22. The impeller is closed with
cover 32 by means of three bolts 33 and
sealed with O-ring 27 and oil seal 25.
3.16
EXPLODED VIEW OF THE PUMP UNIT:
20) Pump gear;
21) Shaft;
22) Roller;
23) Bearing 10x22x6;
24) Bearing;
25) Oil seal 10x18x4;
26) Impeller;
27) O-ring;
32) Cover;
33) Screw M5x16;
34) Screw M6x8;
35) Seal 6x12x1.5;
36) Seeger 9e