Page 65 - Vauxhall 20-60 H.P. (R Type) Chassis Shop Manual

VAUXHALL 20-60 SHOP MANUAL

WATER PUMP — TO REPLACE

SECTION Reverse operations detailed in either ( Section 336 or 337 ) according to
338 method of fitting.

IMPELLER SPINDLE — TO REMOVE

SECTION – Remove water pump ( Section 336 or 337 ) .
339 – Remove castellated nut from the front end of the impeller spindle. (The spindle

cannot be punched through the fan pulley on account of the Woodruff Key,
which will not pass the ball bearing). Drag off the fan pulley and remove the
key, slacken the impeller gland set screws and the spindle complete with the
impeller can be withdrawn from the rear of the pump body.

IMPELLER SPINDLE BEARINGS — TO REMOVE

SECTION – Remove water pump ( Section 336 or 337 ) .
340 – Remove impeller spindle ( Section 339 ).
– Remove ball bearing retaining ring and withdraw bearing.

– Unscrew the fan gland set screws and take out gland and packing. The
bronze bearing fitted in the rear of the pump casing can then be pressed
out from the rear of the casing.

INSPECTION
SECTION – Examine ball bearing for rough running and radial play and replace, if
341 necessary. Examine bronze bearing, gland and water pump casing.

TO REPLACE
SECTION – Press bronze bearing into pump casing. Remove grease gun nipple
342 – Insert a drill in the grease hole and drill through the bearing to establish

communication to the impeller spindle. Remove any burrs formed in the
bearing by the, drill. The impeller spindle must be a working fit in the
bearing and, if necessary^ the bearing must be reamed out to size. For
further reassembly, reverse operations given for removal ( Section 340 ).

IMPELLER GLAND LEAKAGE

SECTION To stop water leakage from the impeller gland, tighten the gland set screws.
343 If this adjustment does not check the leakage, repack the gland, using special

gland packing.
FAN BELT ADJUSTMENT

SECTION It is most unlikely that the fan belt will require any adjustment. If, however, for
344 some reason such adjustment is deemed advisable, remove the radiator and the
four bolts clamping together the flanges of the pulley attached to the camshaft,
and replace the distance piece fitted between the flanges by one of thinner section.
This will cause the belt to ride higher on the pulley and thus take up the slack.

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