1999 LAND ROVER DISCOVERY gearbox

MANUAL GEARBOX - R380
REPAIRS 37-15
32.Remove 3 bolts securing oil cooling pipe
housing to gearbox, release housing and
discard 'O' rings.
33.Using a second jack support the weight of the
engine.
34.Remove 14 bolts securing gearbox to engine.
35.With assistance, remove gearbox from engine.
Refit
1.Clean gearbox to engine mating faces, dowels
and dowel holes.
2.Raise gear gearbox on jack and align to clutch
and engine.
3.Fit bolts securing gearbox to engine and
tighten to 45 Nm (33 lbf.ft).
4.Lubricate and fit new 'O' rings to oil cooling
pipe housing. 5.Position coolant pipe housing, fit bolts and
tighten to 25 Nm (18 lbf.ft).
6. If fitted: Secure harness in retaining clips,
connect Lucars to differential lock warning
switch and multiplug to neutral sensor.
7.Position breather pipes and secure 'P' clip with
bolt.
8.Using new sealing washers fit breather pipe
banjo bolts and tighten to 15 Nm (11 lbf.ft).
9.Connect oil temperature sensor Lucars and
reverse lamp switch multiplug.
10.Position low ratio selector cable to housing and
secure with 'C' washer and clevis pin.
11.Secure cable to fuel pipes with new cable ties.
12.Raise gearbox, ensuring gear change lever is
located in grommet.
13.Fit gearbox mountings and tighten bolts to 85
Nm (63 lbf.ft).
14.Fit nuts to mountings and tighten to 48 Nm (37
lbf.ft).
15.Remove 3 bolts securing support plate to
gearbox.
16.Position clutch slave cylinder and heat shield,
fit bolts and tighten to 25 Nm (18 lbf.ft).
17.Clean handbrake back plate and mating face.
18.Position handbrake back plate, fit bolts and
tighten to 75 Nm (46 lbf.ft).
19.Clean handbrake drum.
20.Fit handbrake drum and tighten retaining
screw.
21.Clean propeller shafts and mating faces.
22.Position propeller shafts, align to marks and
tighten bolts to 47 Nm (35 lbf.ft).
23.Clean exhaust silencer and tail pipe mating
faces.
24.Position silencer and secure on mountings,
using a new gasket align to tail pipe, fit nuts
and tighten to 25 Nm (18 lbf.ft).
25.Position rear cross member, fit bolts and
tighten to 25 Nm (18 lbf.ft).
26.Refill gearbox with oil.

+ MAINTENANCE, PROCEDURES,
Manual gearbox.
27.Refill transfer gearbox oil.

+ MAINTENANCE, PROCEDURES,
Transfer box.
28.Fit front exhaust pipe.

+ MANIFOLDS AND EXHAUST
SYSTEMS - V8, REPAIRS, Front pipe.
29.Fit gear lever extension, fit clamp bolt and
tighten to 25 Nm (18 lbf.ft).
30.Fit gear lever trim and gear change knob.
31.Connect battery earth lead.
32. Fit battery cover and cooling fan cover and
secure fixings.

MANUAL GEARBOX - R380
37-16 REPAIRS
Gearbox - Diesel
$% 37.20.02.99
Remove
1.Release turn buckles and remove battery cover
and cooling fan cowl.
2.Disconnect battery earth lead.
3.Remove gear lever knob and gear lever trim.
4.Remove clamp bolt and remove gear lever
extension.
5.Apply a little lubricant to gear lever to aid
removal through grommet.
6.Remove exhaust front pipe.

+ MANIFOLDS AND EXHAUST
SYSTEMS - Td5, REPAIRS, Pipe - front.7.Remove starter motor.

+ CHARGING AND STARTING,
REPAIRS, Starter motor - diesel.
8.Drain gearbox oil.

+ MAINTENANCE, PROCEDURES,
Manual gearbox.
9.Drain transfer gearbox oil.

+ MAINTENANCE, PROCEDURES,
Transfer box.
10.Remove 3 nuts securing intermediate silencer
to tail pipe.
11.Release silencer from mounting rubbers,
remove silencer and discard gasket.
12.Remove front propeller shaft.

+ PROPELLER SHAFTS, REPAIRS,
Propeller shaft - front.
13.Remove rear propeller shaft.

+ PROPELLER SHAFTS, REPAIRS,
Propeller shaft - rear.

MANUAL GEARBOX - R380
REPAIRS 37-17
14.Remove handbrake drum retaining screw and
remove handbrake drum.
15.Remove 4 bolts from handbrake back plate,
release back plate and tie aside.
16.Remove 2 bolts securing clutch slave cylinder,
collect heat shield, release slave cylinder and
position aside. 17.Fit support plate LRT-99-007 to gearbox jack.
18.Position gearbox jack and support plate to
gearbox and secure with 3 bolts.
19.Support the weight of gearbox, remove nuts
securing gearbox mountings to body.
20.Remove 4 bolts securing both mountings to
gearbox, raise gearbox and remove both
mountings.
21.Lower gearbox sufficiently to access top of
gearbox.

MANUAL GEARBOX - R380
37-18 REPAIRS
22.Ensure gear lever is released from grommet
and no wires or pipes are trapped when
gearbox is lowered.
23.Remove clevis pin and 'C' washer securing low
ratio selector cable to lever and release cable
from lever housing.
24.Remove 2 cable ties securing cable to fuel
pipes. 25.Disconnect 2 Lucars from oil temperature
sensor and disconnect reverse lamp switch
multiplug.
26.Remove banjo bolts securing breather pipes
and discard sealing washers.
27.Remove bolt securing breather pipe 'P' clip and
release breather pipes.
28. If fitted: Disconnect 2 Lucars from differential
lock switch, release and disconnect transfer
box neutral sensor multiplug. Release harness
from 2 retaining clips.
29.Position container to catch oil spillage
30.Remove 2 bolts securing oil cooling pipe
housing to gearbox, release housing and
discard 'O' rings.
CAUTION: Always fit plugs to open
connections to prevent contamination.
31.Using a second jack support the weight of the
engine.

MANUAL GEARBOX - R380
REPAIRS 37-19
32.Remove 8 bolts securing gearbox to engine.
33.With assistance, remove gearbox from engine.
Refit
1.Clean gearbox to engine mating faces, dowels
and dowel holes.
2.With assistance raise gearbox on jack and
align to clutch and engine.
3.Fit bolts securing gearbox to engine and
tighten to 50 Nm (37 lbf.ft).
4.Clean oil cooling pipe housing mating faces.
5.Lubricate and fit new 'O' rings to oil cooling
pipe housing.
6.Position cooling pipe housing, fit bolts and
tighten to 25 Nm (18 lbf.ft).
7. If fitted: Secure harness in retaining clips,
connect Lucars to differential lock warning
switch and multiplug to transfer box neutral
switch.
8.Position breather pipes and secure 'P' clip with
bolt.
9.Using new sealing washers fit breather pipe
banjo bolts and tighten to 15 Nm (11 lbf.ft).
10.Connect oil temperature sensor Lucars and
reverse lamp switch multiplug.
11.Position low ratio selector cable to housing and
secure with 'C' washer and clevis pin.
12.Secure cable to fuel pipes with new cable ties.
13.Raise gearbox, ensuring gear change lever is
located in grommet.
14.Fit gearbox mountings and tighten bolts to 85
Nm (63 lbf.ft).
15.Fit nuts to gearbox mountings and tighten to 48
Nm (37 lbf.ft).
16.Remove 3 bolts securing support plate to
gearbox. 17.Position clutch slave cylinder and heat shield,
fit bolts and tighten to 25 Nm (18 lbf.ft).
18.Clean handbrake back plate and mating face.
19.Position handbrake back plate, fit bolts and
tighten to 75 Nm (55 lbf.ft).
20.Clean handbrake drum.
21.Fit handbrake drum and tighten retaining
screw.
22.Fit front propeller shaft.

+ PROPELLER SHAFTS, REPAIRS,
Propeller shaft - front..
23.Fit rear propeller shaft.

+ PROPELLER SHAFTS, REPAIRS,
Propeller shaft - rear.
24.Clean exhaust silencer and tail pipe mating
faces.
25.Position silencer and secure on mountings,
using a new gasket align to tail pipe, fit nuts
and tighten to 25 Nm (18 lbf.ft).
26.Fit exhaust front pipe.

+ MANIFOLDS AND EXHAUST
SYSTEMS - Td5, REPAIRS, Pipe - front.
27.Refit starter motor.

+ CHARGING AND STARTING,
REPAIRS, Starter motor - diesel.
28.Refill gearbox with oil.

+ MAINTENANCE, PROCEDURES,
Manual gearbox.
29.Refill transfer gearbox with oil.

+ MAINTENANCE, PROCEDURES,
Transfer box.
30.Fit gear lever extension, fit clamp bolt and
tighten to 25 Nm (18 lbf.ft).
31.Fit gear lever trim and gear change knob.
32.Connect battery earth lead.
33.Fit cooling fan cowl and battery cover and
secure fixings.

MANUAL GEARBOX - R380
37-20 REPAIRS
Seal - gearbox mainshaft
$% 37.23.01
Remove
1.Remove transfer gearbox.

+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - V8.
2.Using tool LRT-37-009, LRT-37–010 and
LRT-37-001/2, remove oil seal collar.
3.Remove main shaft oil seal. Refit
1.Clean oil seal recess.
2.Lubricate new seal.
3.Using tool LRT-37-014, fit new seal.
4.Clean oil seal collar and mating face.
5.Using tool LRT-37-015 and LRT-37-021, fit oil
seal collar.
6.Fit transfer gearbox.

+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - V8.

MANUAL GEARBOX - R380
REPAIRS 37-21
Seal - input shaft
$% 37.23.06
Remove
1.Remove gearbox assembly.

+ MANUAL GEARBOX - R380,
REPAIRS, Gearbox - V8.
2.Remove retaining peg and remove release
bearing.
3.Remove bolt securing clutch release fork,
remove retaining clip and remove clutch
release fork.
4.Remove 2 bolts securing release bearing
sleeve and remove bearing sleeve. 5.Remove 6 bolts securing bell housing and
remove bell housing.
6.Remove and discard 6 bolts securing oil seal
housing and remove housing.
7.Using a soft metal drift, carefully remove input
shaft front bearing track from housing.
8.Remove oil seal from housing.

MANUAL GEARBOX - R380
37-22 REPAIRS
Refit
1.Using a suitable solvent clean seal housing
mating faces.
2.Clean seal recess, bearings and bearing races.
3.Lubricate new oil seal and fit using a suitable
mandrel into housing.
4.Fit input shaft front bearing track using a press
and suitable mandrel.
5.Apply sealant, Part No. STC 4404 to seal
housing.
6.Position seal housing, fit new bolts and tighten
by diagonal selection to 25 Nm (18 lbf.ft).
7.Clean bell housing mating faces, dowels and
dowel holes.
8.Position bell housing, fit bolts and tighten to 75
Nm (55 lbf.ft).
9.Clean release bearing sleeve mating faces,
dowel and dowel holes.
10.Position release bearing sleeve, fit bolts and
tighten to 25 Nm (18 lbf.ft).
11.Examine clutch release fork pivot points for
wear and replace as required.
12.Apply a smear of Molybdenum disulphide
grease to pivot points and position release
fork.
13.Fit retaining clip ensuring it locates over pivot
point washer, fit release fork bolt and tighten to
10 Nm (7 lbf.ft).
14.Clean release bearing and bearing sleeve
mating faces.
15.Apply smear of Molybdenum disulphide grease
to release bearing sleeve.
16.Fit release bearing and secure with retaining
peg.
17.Fit gearbox assembly.

+ MANUAL GEARBOX - R380,
REPAIRS, Gearbox - V8.