TRANSMISSION.
Clutch.
The Borg and Beck loin. diameter dry, single plate clutch has a spring cushion
drive and a total frictional area of 88 sq. ins.
The clutch pedal
is
isolated from the
clutch housing by means of a flexible hydraulic control.
A
clearance of
-&
in. should
be maintained between the carbon release bearing and the pressure pad. This may
be checked by removing the
clevis pin connecting the clutch release arm and the
slave cylinder connecting arm and measuring the amount of free movement at this
connecting point.
This should be
$
in. If it is other than this, adjustment may be effected by slack-
ening off clevis locknut and rotating clevis in the appropriate direction to obtain
the requisite free movement. When this has been obtained the pin should be re-
placed, split pinned and
clevis locknut fully tightened.
The method of bleeding is the same as that described for the brakes on Page 13.
The clutch release bearing requires no lubrication.
Gearbox.
The gearbox provides 4 speeds forward and reverse, with synchromesh 2nd,
3rd and top gears.
Ratios are as follows
:-
......
1st Gear
...........
......
3.07:l 2nd Gear
....
.....
1.88:l
......
3rd Gear
............
...
1.27:l 4th Gear
......
......
1.OO:l
Reverse
....
...... .....
3.07:l
Instructions for lubrication are given on Page
7.
The gearbox mainshaft is extended in a housing which allows the use of a short
propeller shaft and provides additional mainshaft bearings to give firmer positioning
for the gears.
Oil capacity
64
pints.
When Overdrive
is
fitted (optional extra) the combined
capacity of the gearbox and overdrive is eight pints.
Propeller Shaft.
The open propeller shaft has Hardy Spicer needle roller bearing universal joints.
Lubrication particulars for this will be found on the lubrication chart on Page 11.
Rear Axle.
The rear axle is of the semi-floating type with shim adjustment for all the
bearings and meshing of the Hypoid drive gear and pinion matched assembly.
The
axle shafts are
splined at the inner ends, which engage splines in the differential side
gears, while the outer ends have tapers and keys to
fit
the rear wheel hubs.
The hubs are supported by taper roller bearings pressed on to the axle shafts
and located in the ends of the axle tubes.
Outward thrust on either wheel is taken
by the adjacent hub bearing, whilst inward thrust is transmitted through the axle
shafts and slotted axle shaft spacer to the opposite bearing. Thus, each hub bearing
takes thrust in one direction only.
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