Gilera Runner RSTPurejet Service Manual page 186

Cooling system
- Lubricate the oil seal and push it home using the
special tool as shown in the picture
Specific tooling
020168Y Water seal punch mount on half-
crankcase
Using the air heater, warm up the water pump
bearing housing, without directing the air flow di-
rectly against the oil seal
- Lubricate the end of the water pump shaft on the
oil seal side, using the recommended product.
Recommended products
AGIP GREASE MU3 Grease for odometer
transmission gear case
Soap-based lithium grease with NLGI 3; ISO-L-
XBCHA3, DIN K3K-20
- Insert the shaft, with bearings, into its housing by
pushing and turning it at the same (turn anticlock-
wise for tightening)
- Turn it rapidly to the end of the threading.
- Should this operation prove difficult, do not carry
on; instead, start over by reheating the crankcase
N.B.
FAILURE TO OBSERVE THIS RULE MAY RE-
SULT IN DAMAGE TO THE THREAD OF THE
COPPER INSERT ON THE IMPELLER, OR SEP-
ARATION OF THIS FROM THE IMPELLER IT-
SELF.
Specific tooling
020169Y Water pump crankshaft fitting and re-
moval spanner
See also
Removal
rpm-timing sensor circuit
Thermostat
COOL SYS - 4
Runner RST Purejet