1999 LAND ROVER DEFENDER oil

MANUAL GEARBOX
11
REPAIR Refit
44.Clean gearbox to engine mating faces, dowels
and dowel holes.
45.With assistance raise gearbox on jack and align
to clutch and engine.
46.Fit lower bolts securing clutch housing to engine
and tighten to50 Nm (37 lbf.ft).
NOTE: Do not fit upper bolts at this stage.
47.Fit earth leads and secure with bolt.
48.Connect Lucars to differential lock switch,
multiplug to reverse light switch, position
multiplug to bracket and connect low ratio detect
multiplug - if fitted.
49.Raise gearbox jack and guide transfer gearbox
lever through tunnel.
50.Secure body harness clips to bracket on top of
transfer gearbox.
51.Position battery earth lead to transfer gearbox
and tighten retaining nut.
52.Connect multiplug to speed sensor and secure
harness in clip on transfer gearbox.
53.Position mounting brackets and rubber
mountings, positioning heat shield to LH
mounting and tighten bracket bolts to85 Nm (63
lbf.ft).
54.Position nuts to mountings and tighten to48 Nm
(35 lbf.ft).
55.Remove 3 bolts securing support plate
LRT-99-007to gearbox.
56.Position handbrake cable through heel board.
57.Position clutch slave cylinder, fit bolts and
tighten to25 Nm (18 lbf.ft).
58.Clean propeller shafts and mating faces.
59.Position propeller shafts, align to marks and
tighten nuts to48 Nm (35 lbf.ft).
60.Clean intermediate silencer and tail pipe mating
faces.
61.Position silencer and secure on mountings,
using a new gasket align to tail pipe, fit nuts and
tighten to25 Nm (18 lbf.ft).
62.Refill gearbox with oil.See Adjustment.
63.Refill transfer gearbox with oil.See
MAINTENANCE ,
64.Fit exhaust front pipe.See MANIFOLD AND
EXHAUST SYSTEM, Repair.
65.Refit starter motor.See ELECTRICAL, Repair.
66.Fit bolt securing shim plate to clutch housing and
tighten10 Nm (7 lbf.ft).
67.Position heater pipe to gearbox housing, fit
upper bolts securing clutch housing to engine
and tighten to50 Nm (37 lbf.ft).
68.Position gearbox breather pipes to clips on
heater hose.69.Fit air cleaner.See FUEL SYSTEM, Repair.
70.Fit cooling fan.See COOLING SYSTEM,
Repair.
71.Fit and align tunnel cover, fit and tighten screws.
72.Position relay panel, fit spacers and tighten
screws.
73.Position hand-brake lever and tighten bolts to25
Nm (18 lbf.ft).
74.Connect handbrake cable to lever, fit clevis pin,
washer and new split pin.
75.Connect Lucar to hand-brake switch.
76.Position gaiter to handbrake lever and secure
with trim stud.
77.Locate insulation pad over gear levers and fit to
tunnel cover.
78.Align spline marks, fit gear lever to lower lever,
fit washer and secure with retaining nut.
79.Position gear lever cover.
80.Position gearbox tunnel carpet.
81.Fit gear lever and transfer gear lever knobs.
82.Reconnect battery negative lead.
83.Fit battery cover.
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TRANSFER GEARBOX
1
REPAIR BOTTOM COVER - TRANSFER GEARBOX -
RESEAL
Service repair no - 41.20.06
1.Raise vehicle on ramp.
2.Remove 6 bolts securing rear underbelly panel
and remove panel.
3.Drain transfer gearbox oil.
4.Remove 10 bolts securing bottom cover to
transfer gearbox and remove cover.
Refit
5.Clean bottom cover and mating face on transfer
gearbox.
6.Clean bolt threads.
7.Apply Loctite 290 to bolt threads.
8.Apply Hylosil RTV sealant to bottom cover
sealing face.
9.Position bottom cover, fit bolts and tighten to25
Nm (18 lbf.ft).
10.Fill transfer gearbox with oil.
11.Fit rear underbelly panel and tighten bolts.
12.Lower vehicle on ramp.TRANSFER GEARBOX
Service repair no - 41.20.25.99
Remove
1.Position vehicle on a’4 post’ramp
2.Remove battery cover.
3.Disconnect battery negative lead.
4.Select low range gear and leave vehicle in
neutral.
5.Remove gear lever knobs.
6.Remove gearbox tunnel carpet.
7.Remove gear lever cover.
8.Release and remove insulation pad.
9.Remove cubby box.See CHASSIS AND
BODY, Repair.
10.Remove 4 screws securing access panel,
diagnostic plug mounting bracket and place
aside.
11.Remove trim stud and lift up handbrake gaiter for
access to clevis pin.
12.Remove split pin, washer, clevis pin and
disconnect cable from handbrake lever.
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41TRANSFER GEARBOX
2
REPAIR
13.Release handbrake outer cable from heelboard.
14.Remove breather pipe banjo bolt from transfer
gearbox high/low cross shaft housing and
discard sealing washers.
15.Remove retaining clip and disconnect high/low
operating rod from lever.
16.Remove cooling fan.See COOLING SYSTEM,
Repair.
17.Remove front exhaust pipe.See MANIFOLD
AND EXHAUST SYSTEM, Repair.
18.Drain transfer gearbox oil.
19.Remove 3 nuts securing intermediate silencer to
tail pipe.
20.Release intermediate silencer from rubber
mountings and remove silencer from tail pipe,
discard gasket.
21.Using a centre punch, mark relationship between
front propeller shaft and transfer gearbox drive
flanges and rear propeller shaft and brake drum
drive flanges.
22.Remove 4 nuts securing front propeller shaft to
transfer gearbox drive flange and remove
propeller shaft.
23.Remove 4 nuts securing rear propeller shaft to
brake drum flange.
24.Release propeller shaft and tie aside.
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TRANSFER GEARBOX
5
REPAIR
43.If transfer gearbox is to be refitted, remove and
discard input shaft oil seal.
Refit
44.Clean mating faces of main gearbox extension
case and transfer gearbox.
45.Remove all traces of sealant from threads of
transfer gearbox securing bolts and studs.
46.Clean input shaft oil seal recess in transfer
gearbox.
47.Lubricate new input shaft oil seal with transfer
gearbox oil.
48.Using toolLRT-37-014, fit input shaft oil seal, lip
side facing inwards.49.Ensure guide studsLRT-41-009are fitted in
main gearbox extension case.
CAUTION: If securing studs were removed
during transfer gearbox removal, apply
Loctite 290 to threads of new studs; fit
studs and tighten to 45 Nm (33 lbf.ft).
50.Secure transfer gearbox to support plate
LRT-99-010, fit and tighten 4 bolts.
51.Raise transmission hoist until transfer gearbox
can be located over guide studsLRT-41-009.
52.Apply Loctite 290 to threads of securing bolts
and studs.
53.Fit and lightly tighten 2 nuts to secure transfer
gearbox to main gearbox extension case.
54.Remove guide studsLRT-41-009.
55.Ensuring bolts are in their original fitted
locations, fit and lightly tighten 4 bolts to secure
transfer gearbox to main gearbox extension
case.
56.Progressively tighten nuts and bolts to45 Nm
(33 lbf.ft).
57.Position earth leads to RH side of transfer
gearbox, fit and tighten bolt.
58.Connect low ratio detect switch multiplug and
secure to bracket. Connect Lucars to differential
lock warning lamp switch.
59.Raise gearbox jack and guide transfer gearbox
lever through tunnel.
60.Connect body harness clips to bracket on top of
transfer gearbox.
61.Position earth lead to transfer gearbox, tighten
nut to45 Nm (33 lbf.ft).
62.Connect speed sensor multiplug and secure
harness in clip.
63.Position heat shield to LH mounting, fit
mountings and brackets and tighten bolts to85
Nm (63 lbf.ft).
64.Fit nuts securing RH and LH mountings and
tighten to48 Nm (35 lbf.ft).
65.Position breather pipe to transfer gear box, fit
new sealing washers and tighten banjo bolts to
15 Nm (11 lbf.ft).
66.Remove bolts securing support plate to gearbox
jack.
67.Remove bolts securingLRT-99-010to transfer
gearbox.
68.Apply Loctite 290 to threads of bottom cover
securing bolts, fit bolts and tighten to25 Nm (18
lbf.ft)
69.Position differential lock control rod and secure
with retaining clip.
70.Clean rear propeller shaft to brake drum flange
mating faces.
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41TRANSFER GEARBOX
6
REPAIR 71.Release propeller shaft, align flange markings
and connect to studs.
72.Fit nuts securing propeller shaft and tighten to48
Nm (33 lbf.ft).
73.Clean front propeller to transfer gearbox flange
mating faces.
74.Fit propeller shaft, align flange markings and
tighten nuts to48 Nm (33 lbf.ft).
75.Using new gasket, fit intermediate silencer and
tighten nuts to25 Nm (18 lbf.ft).
76.Fit exhaust front pipe.See MANIFOLD AND
EXHAUST SYSTEM, Repair.
77.Refill transfer gearbox with recommended oil.
78.Fit cooling fan cowl.
79.Fit high/low operating rod and secure with
retaining clip.
80.Position handbrake outer cable to heelboard.
81.Position handbrake cable to lever, fit clevis pin,
washer and new split pin.
82.Position handbrake gaiter and secure with trim
studs.
83.Fit insulation pad to tunnel.
84.Fit gear lever cover.
85.Fit gear lever knobs.
86.Position diagnostic plug bracket, access panel
and tighten screws.
87.Fit carpet to transmission tunnel.
88.Fit cubby box.See CHASSIS AND BODY,
Repair.
89.Fit cooling fan.See COOLING SYSTEM,
Repair.
90.Reconnect battery negative lead.
91.Fit battery cover.GASKET - REAR COVER PLATE
Service repair no - 41.20.30
Remove
1.Raise vehicle on’4 post ramp’.
2.Mark rear cover plate to bearing housing for
assembly purposes.
3.Noting fitted position of stud bolt and harness
clip bracket, remove 5 bolts and stud bolt
securing cover plate.
4.Collect harness clip bracket.
5.Remove cover plate.
Refit
6.Clean cover plate and mating face.
7.Apply Hylosil RTV 102 to rear cover mating face.
8.Align reference marks, fit cover plate.
9.Clean cover bolts and apply Loctite 290 threads
of bolts and stud nut.
10.Position clip bracket, fit stud nut and bolts,
tighten by diagonal selection to25 Nm (18
lbf.ft).
11.Check/top-up transfer gearbox oil.
12.Lower vehicle.
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41TRANSFER GEARBOX
8
REPAIR 17.Apply Hylomar PL32 sealant to switch threads.
18.Position switch into gearbox housing until
locknut/spacer bottoms out on housing.
19. Switches fitted with spacer:Tighten spacer
securing differential lock switch to11 Nm (8
lbf.ft).
20.Connect Lucars to switch.
21. Switches fitted with locknut:Adjust switch.
See Adjustment.
22.Fit and align tunnel cover, fit and tighten screws.
23.Fit hand-brake lever and tighten bolts to25 Nm
(18 lbf.ft).
24.Secure bulkhead carpet to LH side of tunnel.
25.Position relay/fuse panel, fit spacers and tighten
screws.
26.Fit insulation pad around gear levers.
27.Fit gear lever (s) gaiter.
28.Fit gearbox tunnel carpet.
29.Fit gear lever knobs.
30.Reconnect battery negative lead.
31.Fit battery cover.SEAL - INPUT SHAFT
Service repair no - 41.20.50
Remove
1.Remove transfer gearbox.See this Section.
2.Remove and discard input shaft oil seal from
transfer gearbox.
Refit
3.Clean oil seal recess in transfer gearbox.
4.Lubricate new oil seal with transfer gearbox oil.
5.UsingLRT-37-014, fit input shaft seal to transfer
gearbox.
6.Fit transfer gearbox.See this Section.
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TRANSFER GEARBOX
9
REPAIR SEAL - FRONT OUTPUT SHAFT
Service repair no - 41.20.51
Remove
1.Position vehicle on 4 post ramp.
2.Remove underbelly panelSee CHASSIS AND
BODY, Repair.
3.Mark front propeller shaft to transfer gearbox
flanges for reassembly purposes.
4.Remove and discard 4 nuts securing front
propeller shaft to transfer gearbox drive flange,
and release propeller shaft from flange.
5.Restrain transfer gearbox drive flange using
LRT-51-003, remove and discard drive flange
nut, remove and discard steel and felt washers.
6.UsingLRT-99-500if necessary remove drive
flange from transfer gearbox.
7.Remove and discard front input shaft oil seal
from transfer gearbox.
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41TRANSFER GEARBOX
10
REPAIR Refit
8.Clean oil seal recess.
9.Lubricate new input shaft oil seal with transfer
gearbox oil.
10.Fit oil seal usingLRT-41-012.
NOTE: Use end of tool marked ’FRONT’ to
fit seal.
11.Position drive flange, fit new felt and steel
washers.
12.PositionLRT-51-003fit new drive flange nut and
tighten to148 Nm (109 lbf.ft).
13.Align marks and position front propeller shaft to
output flange. Fit new nuts and tighten to48 Nm
(35 lbf.ft).
14.Fit underbelly panel.See CHASSIS AND
BODY, Repair.
15.Check/top-up transfer gearbox oil.SEAL - REAR OUTPUT SHAFT
Service repair no - 41.20.54
Remove
1.Loosen brake shoe adjuster bolt.
2.Remove rear propeller shaft.See PROPELLER
SHAFTS, Repair.
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