Triumph TR2 Service Instructions Manual page 144

GEARBOX
to the overdrive unit, holding the latter
vertically in the vice as shown in
Fig. 33. After engaging top gear, turn
the constant pinion until the splines in
the overdrive unit mesh with those of
the mainshaft. The eight springs are
now located on their spigots and a nut
and washer fitted to each long stud.
These two nuts are now evenly tighten-
ed until the pump roller is nearing the
pump driving cam. The driving cam
should have been assembled on the
gearbox mainshaft splines so that the
least amount of eccentricity is nearest
to the pump roller. It is necessary to
depress the pump plunger with a
screwdriver to allow the pump roller
Fig.
34
Method of setting Valve Operating
-
- .
to pass over the cam.
m he
nuts are
Levers.
now finally tightened.
CAUTION. Do not use undue force
in tightening the nuts on the long studs.
There are two sets of splines in the
overdrive unit and unless these are in
line, it is impossible to tighten the
overdrive unit home on to the adapter
plate face.
The overdrive valve setting should
now be checked.
VALVE CHECKING
On the R.H. of the overdrive unit and pinned
to 'the valve operating shaft, is a valve
setting lever with a
&"
diameter hole. In
the casting adjacent to this lever is another
&"
diameter hole. Actuate the solenoid
with a 12 volt battery and while the plunger
is drawn into the solenoid and if the valve
adjustment is correct, it should be possible
to insert a
h"
diameter pin through the
valve setting lever and into the casting (see
Fig. 34).
If
this is not possible then the valve must be
re-adjusted in the following manner.
VALVE ADJUSTMENT (Fig. 35)
Remove the cover plate by unscrewing
three cheese headed bolts. Slacken off the
clamping bolt on the solenoid lever.
Rotate the valve setting lever until its
&"
diameter hole coincides with the
6"
&a-
meter hole in the casting. Insert a +%"
setting lever and into the casting thus
locking the valve operating shaft.
Actuate the solenoid with a 12 volt battery
and while the plunger is drawn into the
solenoid, tighten the clamping bolt on the
solenoid lever and at the same time ensure
that opposite end of the solenoid lever is
against the head of the actuating bolt.
Repeat the first check and if satisfactory,
refit the cover plate.
diameter pin through &e hole in &e
Fig. 35
Setting Solenoid Lever.
21