Sunbeam ALPINE I SERIES: APLINE II SERIES, Workshop Manual, Page: 36 / 413

3rd
re-Issue
Page6
FAN PULLEY
CENTRE
BEARING
UNIT
BODY THROWER
I;
I
WSM.12-4
Section A (Cooling
System)
COVER PLATE
IMPELLOR
.040"' (1.01 mm.)
Fig. l.
Sectionol view of water pump
ALPINE SERIES I AND RAPIER 111 '4·00"-'4-0I• (101•6-101·8 mm.)
ALPINE SERIES II AND 111-4-865'-4•875• (121·5-123·8 mm.)
fit on the pump spindle which forms part of a
specially constructed shaft and bearing unit.
The bearing unit is lubricated in manufacture only.
There Is no provision for renewal of the lubricant
In service. It is therefore most Important not to
wash the complete pump in petrol (gasolene),
paraffin (kerosene) or any other form of cleaning
fluid, as these would enter the bearing and destroy
the lubricant. Cleaning of the pump body should be
left until the pump Is dismantled.
The pump should be dismantled In the following
manner:-
I . Remove bearing locating screw, see Fig. 2, and
the countersunk bolt and nut holding on the
back cover plate. Remove cover plate and its
paper Joint.
2. Support pump body and press on spindle at the
lmpellor end. This will bring the lmpellor
against the pump body and allow the spindle
to be pressed out of the impellor and housing
leaving the water seal in position.
3. Lift the water seal out of the pump body.
4. Carefully examine the spindle and bearing unit.
If the bearing shows any signs of wear or rough-
ness when rotated, the fan pulley centre should
be supported on Its underside and the spindle
pressed out,