Triumph TR6 PI Operation Manual page 239

SYNCHROMESH GEARBOX
Reassembling
31. Refit the reverse lever with fulcrum pin, washer and
nut to the gearbox.
NOTE: Position the lever on the pin so that two screw
threads (approx) are visible between the gearbox and
lever. Replace the reverse idler gear and shaft.
32. Using heavy grease to retain the thrust washers in
position, fit the countershaft cluster.
33. Align the thrust washers and fit the spindle.
34. Check the countershaft end float. The end float
should be 0'007 to 0'012 in (0'18 to 0'30 mm).
Adjust by selective use of thrust washers or if
necessary remove metal from the steel backing face of
the thrust washer. Withdraw the spindle.
35. Check the end float of the 1st, 2nd and 3rd gears on
their respective bushes. End float should be 0'004 to
0.008 in (0'1 to 0'2 mm).
Part No.
Colour in ± 0'001 Thickness mm
±
0 '25
129941 Metal
0'119 3'02
36b
129942 Green 0'122
3'10
129943 Blue 0'125
3V
129944 Orange 0'128
3'25
134670
Yellow 0'133
3"38
iii
ii
L638B
f Remove the items from the mainshaft but
36a
suitably identify selected adjustment washer for
association with 2nd gear.
NOTE: Interchange of Ist and 3rd gear bushes is
permissible to obtain these figures.
ii. If necessary reduce the bush length to reduce
the end float or fit a new bush to increase the
end float.
36. Check the total end float of the 2nd and 3rd gear
bushes on the mainshaft.
Q.
Temporarily fit to the front end of the
mainshaft in order:
i.
Adjustment washer.
ii.
Bush - 2nd gear.
iii.
Thrust washer,
iv.
Bush - 3rd gear
v.
Thrust washer - fit reversed.
iv.
Sectioned washer - fit reversed.
b.
Insert the deeper portion of a discarded circlip
in its groove in the mainshaft to retain the
items.
c.
Measure the bush end float on the mainshaft
using feeler gauges.
d. End float is to be within 0'003 to 0'009 in
(0'08 to 0'23 mm).
e.
Adjustment of end float is to be made by
selection of the adjustment washer (a. L) of
appropriate thickness listed as follows:
37.20.04 Sheet 3
Triumph TR6 Manual. Part No. 545277 Issue I