Page 36 - Vauxhall 20-60 H.P. (R Type) Chassis Shop Manual
P. 36
VAUXHALL 20-60 SHOP MANUAL
when carrying out this operation, one bolt at a time being removed and
replaced by a hot rivet, which should be quickly snapped into position
with a minimum amount of force, care having been taken to provide a
suitable dolly and snap beforehand.
NOTE— Whenever it is necessary to fit a new crown wheel, a new
bevel pinion should also be fitted if a quiet axle is to result.
DIFFERENTIAL GEAR —
TO REPLACE AND ADJUST
( See Figure 5 )
SECTION To replace, reverse the operations given for removal ( Section 108 ). The
111 crown wheel is adjusted into mesh with the bevel pinion by means of screwed
sleeves ‘B’ housed in the differential carrier. To make the adjustment,
remove the rivets holding the locking plates in position and take away the
locking plates. Slacken off the adjusting sleeve towards which it is desired
to move the crown wheel and screw in the opposing sleeve a corresponding
amount. Repeat this operation until the correct meshing of the teeth is
obtained. See that both sleeves are screwed right home and finally replace
the locking plates and rivets.
The crown wheel should be adjusted into mesh with the bevel pinion until
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there is a back lash of 003” to 006” between the teeth. This will be found
to give the most satisfactory results.
AXLE — TO REMOVE
SECTION Wedge the front wheels and lift the rear of the car by means of suitable
112 lifting tackle 112 sufficiently high to permit the rear axle to be withdrawn
complete with road wheels.
Take the weight of the axle on jacks, unpin the brake connections and
remove the four bolts clamping the axle to each rear spring. Remove rear
shackles and lower the springs. The jacks can now be removed and the axle
withdrawn complete with the propeller shaft. It is unnecessary to disconnect
either of the propeller shaft couplings for this operation, because the shaft
will slide out of the splines at the forward end as the axle is withdrawn.
BEVEL PINION — TO REMOVE
( See Figure 5 )
SECTION – Remove axle ( Section 112 ) .
113 – Remove propeller shaft and rear fabric coupling from axle.
– Remove the split pin and castellated nut, ‘H’ from the end of the bevel
pinion shaft; take off the propeller shaft balancing drum and draw off
the coupling spider from the pinion shaft by means of a suitable drag.
– Remove the pinch bolt ‘J’, and bevel pinion adjustment locking plate
located at the side of the bevel pinion housing, also remove triangular
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