Land Rover DEFENDER LT77S - Manual (Page 36)

MANUALGEARBOX DEFENDER
INPUT-MAINSHAFT BEARING ADJUSTMENT
1. Turn gearbox over with input shaft uppermost.
Remove layshaft support plate.
NOTE: Correct shimming of the input
shaft bearing is vital to ensure that the
mainshaft assembly has the design
intended e n d float, and the bearings are not
pre-loaded.
2. Measure the thickness of a new front cover
gasket.
3. Place the original shim on mainshaft bearing
and finger tighten the bolts.
4. Measure the clearance between front cover and
gearcase with two feeler gauges.
5. If required, change the selective washer to
provide a clearance of
to
(0.001 to less than the gasket
thickness.
NOTE: This will ensure that when the
gasket and cover is fitted t o the correct
torque, the input and mainshaft bearings
will have n o pre-load more than
end float.
6. Remove front cover and keep gasket and
selective washer together.
Mainshaft selective washers
Part number
FRC 4327
FRC 4329
FRC 4331
FRC 4333
FRC 4335
FRC 4337
FRC 4339
FRC 4341
FRC 4343
FRC 4345
FRC 4347
FRC 4349
FRC 4351
FRC 4353
FRC 4355
FRC 4357
FRC 4359
FRC 4361
FRC 4363
FRC 4365
FRC 4367
FRC 4369
2.35
LAYSHAFT BEARING ADJUSTMENT
1.
2.
Place original selective washer on layshaft
bearing, fit front cover without gasket, and
finger tighten bolts.
Measure clearance, with two feeler gauges,
between cover and gearcase. Select
a shim
that will provide a clearance equal to the
thickness of the gasket that was selected and
measured when calculating the adjustment of
the input and mainshaft bearing.
32 OVERHAUL