Differential Pinion Gear Backlash - Check And Adjust - Lotus Elise Service Notes

MANUAL GEARBOX
Differential Pinion Gear Backlash - Check and
Adjust
10. Select circlip(s) from sizes available which
equal thickness required. Fourteen circlips are
available ranging from 0.5 mm to 1.15 mm
thick in increments of 0.05 mm.
^ CAUTION: No more than two circlips may
/ ! \ be fitted, it is not always possible to select
the exact thickness of circlips required;
where this occurs, always fit a slightly thinner
pack to avoid pre-loading bearings.
11. Remove bolts securing gear case; remove
gear case.
12. Remove input shaft assembly.
13. Remove input shaft bearing from differential
housing using a soft metal drift.
37M0171
1. Position differential assembly with bearings
located in V blocks.
2. Fit both inboard drive shaft joints to align
gears.
3. Assemble a DTI gauge with stylus of gauge
contacting one of the planet gears; zero the
gauge.
4. Measure and record planet gear backlash.
5. Repeat procedure for other planet gear.
6. Compare backlash figures obtained with the
following:
Planet gear backlash = 0.05 to 0.15 mm
7. If backlash is not as specified, remove planet
gears, measure thickness of original thrust
washers and from figures obtained, calculate
thickness of thrust washers required to give
correct backlash.
- CAUTION: Thrust washers selected must
/ j \ be of equal thickness, and are available
from 0.70 to 0.90 mm thick in increments
of 0.20 mm.
8. Fit selected thrust washers, secure pinion shaft
with a new pin.
REVISED: 12/97 OVERHAUL 2 5