Advertisement
1
! 1
u
Paee Q\
u
(Q)
W A TER
PUMP
The cooling water is circulated by a centrifugal
type pump mounted on the front end of the
cylinder block and driven by a Vee belt from
the engine crankshaft. Provision is made for
fitting a fan on the front of the water pump pulley.
Tbe pump does not require greasing as the
I,earings are treated with a special grease before
assembly.
.
When re-assembling to cylinder block a new
joint should be used to cnsure that a watertight
joint is made.
To Dismande Water Pump.
Remove split pin from slotted nut securing
water pump pulley, and remove nut and washer.
Remove water pump pulley.
Remove impeller from shaft.
Remove front bearing re-
taining circlip using long
nose pliers for the purpose.
Remove rear seal.
Using a suitable press,
press the shaft out of the
~
body from the impeller end
.~
leaving tbe thrower loose
in the body. These can now
be removed from the body.
Remove the front seal and
tlanges. The two bearings
and distance piece will still
be on the water pump shaft.
These can be removed by
means of a suitable press.
@~@(f3) ,~
~j;
1r1'4)/
~G)
.Ol~.
]
/
]
-,.
""'"
-:---(~)
..
..:::...,/
]
,.
.==+-
J
-
~
@
@
Fil. Q.l. Water Pump in Section
6. Hearings
12. Distante Piece
7. Plain Washer 13. Front Scal
8. Split Pin
Retaining Plate
9. Slotted Nut
14. Front Scal
10. Pulley
IS. Front Seal
11. Circlip
Housing
I. Body
2. Impellcr
3. Sbaft
4. Rcar Scal
S. Throwcr
To Remoye and Refit Water Pump.
Slacken dynamo securing screws and remove
fan belt.
Remove fan.
Unscrew nuts securing water pump to cylinder
block and remove water pump.
To refit pump to cylinder block is a reversal of
the above procedure.
~:
-J
~
Inspection.
Ir the water pump drive
shaft shows signs of wear
in the region of the bear-
ings, the shaft must be
renewed, as a wam shaft in
this region wilt allow the
inner race of the bearing to
rotate on the shaft.
Clean impeller and check for cracks and broken
blades.
Examine casing for cracks.
Wash hearings in thin lubricating oil and examine
for pitting, corrosion or wear. Ir necessary renew
hearings.
To Re-Assemble Water Pump.
1. Press rear hearing on to shaft, fit hearing
-
Advertisement
