Lotus TURBO ESPRIT Service Manual page 282

SECTION FB
Page 29
given for bearings which have previously been used and new bearings.
(i)
Bearings previously used should be within
4
to
6
kg.
If
the
reading i s less than
4
kg, increase the thickness of the adjusting
washers. For readings inexcess of
6
k g reduce the thickness
of
the adiusting washers.
(ii)
New bearings should be within
6
to
9
kg.
If
the reading i s less
than
6
kg, increase the thickness o f the adjusting washers. For
readings i n excess o f
9
k g reduce the thickness o f the adjusting
was hers
.
NOTE:
A n adjusting washer
0.1 0
mm thick corresponds approximately to a
bearing stress of: 0.250 k g for new bearings
0.500kg for used bearings
IMPORTANT: The thickness of the was hers fitted against the left- hand and
right-hand bearings corresponds to the setting o f the bearing
stress only.
To adjust the backlash these washers must be redistributed to the left and
right, without changing the overall thickness.
FB,13.
-
BACKLASH ADJUSTMENT
a
T o
check the backlash adjustment both drive shaft housings must be fitted.
1 .
Measure the clearance between the crown wheel and pinion teeth
i
.em
backlash.
(a)
F i t a dial gauge TOOOT0615 to a support, fixed to the gearbox casting.
(b)
A d just the position of the dial gauge so that the measuring probe
touches the flank o f a tooth a t heel (outer edge o f crown wheel) see
figure
1 0.
This should be achieved somewhe& near maximum diameter
o f the crown wheel
.
(c)
Move the crown wheel to the extent o f the backlash several times
and measure the difference on the dial gauge.