Defender (1993+). Manual - part 38
ASSEMBLY RENEWAL
SPECIAL TOOLS
CLUTCH
The major part
of clutch assembly renewal is the
LRT-12-001 Clutch centralising tool
removal of the transmission
to
gain access to the
clutch. Because of the considerable combined weight
Remove
of
the main gearbox and transfer box and the off-set
centre
of
gravity,
it
is vital that clutch replacement
1.
Remove the transmission, see
SECTION
37.
must only be undertaken by organisations or
2. Mark the position of the clutch cover
to
the
individuals that have the necessary experience and
flywheel to assist
with
reassembly.
essential equipment
to
enable the transmission to be
3.
Working evenly and diagonally remove the
removed safely, without the risk
of personal injury
clutch cover securing bolts.
and damage
to
the transmission and vehicle. Details
4.
Do not disturb the three bolts in the clutch
of
the recommended transmission hoist and special
cover.
cradles are contained in
SECTION
37.
5.
Remove clutch cover assembly.
6.
Withdraw the clutch friction plate.
Always ascertain the reason for the necessity to
renew the clutch before attempting to
fit
a new
assembly. Careful examination of the clutch and the
associated components should be carried out. This
should
also
include checking the clutch hydraulic
system
if
the
reason for clutch failure is not
immediately apparent. See "Clutch
Fault Diagnosis".
If oil is present on the clutch lining the source of the
oil
contamination should be investigated.
If
necessary, the rear main bearing oil seal should be
renewed as described
in SECTION
12
.
Excessive wear of the clutch due to the vehicle
having been used continually for wading without the
flywheel housing plug being fitted, would be evident
by
rust on all parts including the release assembly
and splines of the primary shaft.
The clutch cover and friction plate should always be
7.
Reverse items 5 and
6,
aligning the assembly
renewed together. Also it would certainly be wise
to
replace the release bearing and possibly the
marks and using the centralising
tool
I
8.
Fit the cover securing bolts, working in a
When fitting the clutch
it
is
important that
the
splines
diagonal sequence. Finally tightening the bolts
to
a torque
of 28Nm.
of the primary shaft are smeared with Molybdenum
Disulphide grease such as Rocol
M.T.S.
1000
to
9.
Refit
the
transmission.
prevent seizure.
Also the friction plate must be
centralised while the cover bolts are evenly tightened
to the correct torque.
Refitting
remainder
of
the mechanism
if any wear
is
present.
LRT-12-001.