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OVERDRIVE 'A' TYPE
OVERDRIVE ASSEMBLY
Removing
I.
Remove gearbox. 37.20.01.
2.
Drain gearbox and overdrive units of oil.
3.
Place gearbox, bell housing flange down on bench.
4.
Remove four nuts on short studs securing overdrive
to gearbox.
5.
Remove, evenly, the nuts on long studs securing
overdrive to gearbox.
6.
Lift off overdrive unit, collect eight overdrive clutch
return springs.
- Remove and refit
40.20.07
l824A
Refitting
7.
Use a dummy mainshaft to ensure that the splines on
the uni-directional clutch and the planet carrier are
aligned.
8.
Check that pump cam is fitted to mainshaft with
long, plain end towards the gearbox.
9.
Rotate mainshaft until narrowest part of cam is
towards bottom of gearbox.
10.
Thread a length of soft iron wire through the pump
plunger and form it into a continuous loop just below
sump level.
NOTE: The plunger of the oil pump must be
depressed whilst fitting the overdrive to allow it to
come up below the drive cam when fitted.
Continued
40.20.07A Sheet I
Triumph TR6 Manual. Part No. 545277 Issue I
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