1999 LAND ROVER DISCOVERY gearbox

ENGINE - V8
REPAIRS 12-2-25
Mounting - rear - RH
$% 12.45.09
Remove
1.Raise vehicle on lift.
2.Remove 8 bolts securing rear cross member
and remove cross member.
3.Support transfer gearbox on jack.
CAUTION: To prevent damage to
components, cushion the jack pad with a
block of wood or hard rubber.
4.Remove nut securing mounting to body
bracket.
5.Remove nut securing mounting to mounting
bracket.
6.Remove 4 bolts securing mounting bracket to
gearbox.
7.Remove mounting and mounting bracket
assembly.
8.Remove mounting rubber.
9.Remove heat shield, if fitted.Refit
1.If fitted, position heatshield, fit mounting rubber
to mounting bracket, fit nut but do not tighten.
2.Position mounting bracket assembly, fit bolts
securing mounting bracket to gearbox and
tighten to 85 Nm (63 lbf.ft).
3.Fit nut securing mounting to body bracket and
tighten to 48 Nm (35 lbf.ft).
4.Tighten nut securing mounting to gearbox
bracket to 48 Nm (35 lbf.ft).
5.Position rear cross member, fit bolts and
tighten to 26 Nm (19 lbf.ft).
6.Lower vehicle.

ENGINE - V8
REPAIRS 12-2-29
30. Models with automatic gearbox: Remove
access plug and remove 4 bolts securing
torque converter to drive plate.
31.Rotate engine to access bolts.
32.Remove 12 bolts securing engine to gearbox.
DO NOT remove the top 2 bolts at this
stage.
33.Collect support brackets from bell housing
bolts.
34.Attach suitable lifting equipment to engine. 35.Remove 4 nuts securing engine mountings,
raise engine and remove engine mountings.
36.Lower engine, remove top bolts securing
engine to gearbox and collect bracket.
37.Support gearbox on a jack.
38.Release engine from gearbox dowels.
39.With assistance remove engine from engine
bay.

ENGINE - V8
12-2-30 REPAIRS
Refit
1.Clean mating faces of engine and gearbox,
dowel and dowel holes.
2.Lubricate splines and bearing surface on first
motion shaft with grease.
3.With assistance position engine in engine bay,
align to gearbox and locate on dowels.
4.Position support brackets, fit bell housing bolts
and tighten to 50 Nm (37 lbf.ft).
5.Position engine mountings, fit nuts and tighten
to 85 Nm (63 lbf.ft).
6.Lower lifting equipment and remove from
engine.
7. Models with automatic gearbox: Align torque
converter to drive plate, fit bolts and tighten to
50 Nm (37 lbf.ft). Fit access plug.
8.Fit exhaust front pipe.

+ MANIFOLDS AND EXHAUST
SYSTEMS - V8, REPAIRS, Front pipe.
9.Position oil cooling pipe saddle clamps and
tighten bolts.
10.Position engine harness into foot well.
11.Connect 5 multiplugs to ECM.
12.Fit toe board and secure with trim fixings.
13.Connect engine harness earth to body and
secure with nut.
14.Connect engine harness to main harness
multiplug.
15.Connect multiplug to EVAP purge valve.
16.Connect engine harness multiplugs to fuse
box.
17.Connect starter lead to fuse box and secure
with nut.
18.Connect engine harness positive lead to
battery and tighten nut.
19.Fit fuse box cover.
20.Position engine earth lead and secure with
bolt.
21.Position coolant rail and secure with bolt.
22.Connect harness clips to coolant rail.
23.Connect hose to coolant rail and coolant pump
and secure with clips.
24.Connect PAS pump high and low pressure
pipes and secure with clips.
25.Position oil cooling pipe saddle clamp to PAS
pump housing and secure with bolt.
26.Clean A/C compressor and housing mating
faces, dowels and dowel holes.
27.Position A/C compressor, fit bolts and tighten
to 22 Nm (16 lbf.ft).
28.Connect multiplug to A/C compressor.
29.Clean ACE pump and housing mating faces,
dowels and dowel holes.
30.Position ACE pump, fit bolts and tighten to 22
Nm (16 lbf.ft). 31.Clean all pulley 'V's, fit auxiliary drive belt,
using a 15mm spanner, release belt tensioner
secure belt and re-tension drive belt .
32.Ensure auxiliary drive belt is correctly located
on all pulleys.
33.Fit radiator.

+ COOLING SYSTEM - V8, REPAIRS,
Radiator.
34.Fit top hose and secure with clips.
35.Connect fuel pipe to fuel rail.
36.Position ignition coils and connect ht leads.
37.Fit upper inlet manifold.

+ MANIFOLDS AND EXHAUST
SYSTEMS - V8, REPAIRS, Gasket - inlet
manifold - upper - Without Secondary Air
Injection.
38.Fit new oil filter and refill engine with oil.

+ ENGINE - V8, REPAIRS, Filter - oil.

+ MAINTENANCE, PROCEDURES,
Engine oil - V8 engine.
39.Top up gearbox oil.

+ MAINTENANCE, PROCEDURES,
Automatic gearbox.

ENGINE - V8
REPAIRS 12-2-31
Flywheel
$% 12.53.07
Remove
1.Remove gearbox

+ MANUAL GEARBOX - R380,
REPAIRS, Gearbox - V8.
2.Restrain flywheel.
3.Working in sequence, progressively slacken 6
bolts securing clutch cover to flywheel.
Remove bolts.
4.Remove clutch cover.
5.Remove clutch plate.
6.Release crankshaft sensor multiplug from
bracket.
7.Remove 2 bolts securing crankshaft sensor
cover. 8.Remove crankshaft sensor cover.
9.Remove 2 nuts securing crankshaft sensor.
10.Remove crankshaft sensor.
11.Remove 6 bolts securing flywheel.
12.Remove flywheel.
On early engines, balance weights are on
engine side of flywheel; replacement flywheels
will have balance weights on clutch side of
flywheel.
Refit
1.Clean mating faces of flywheel and crankshaft,
dowel and dowel hole. Ensure bolt holes in
crankshaft are clean and dry.
2.Fit flywheel to crankshaft and tighten bolts to
78 Nm (58 lbf.ft).
3.Clean crankshaft sensor and mating face.
4.Fit crankshaft sensor and tighten nuts to 6 Nm
(4.4 lbf.ft).
5.Fit crankshaft sensor cover and tighten bolts to
6 Nm (5 lbf.ft).
6.Fit crankshaft sensor multiplug to bracket.
7.Clean clutch cover, drive plate and spigot bush
in end of crankshaft. Renew worn components
as necessary.
8.If refitting existing drive plate, apply 'Molycote
FB 180' to splines.

ENGINE - V8
12-2-32 REPAIRS
9.Fit alignment tool LRT-12-001 to spigot
bearing in crankshaft.
10.Fit drive plate onto tool LRT-12-001 ensure
side marked 'flywheel side' is towards flywheel.
11.Fit clutch cover and locate on dowels.
12.Fit clutch cover bolts and tighten in diagonal
sequence to 40 Nm (30 lbf.ft).
13.Fit gearbox assembly.

+ MANUAL GEARBOX - R380,
REPAIRS, Gearbox - V8.
Plate - drive - automatic
$% 12.53.13
Remove
Note: Later engines are fitted with a modified
starter ring gear which incorporates the reluctor
plate, spacer and hub. The modified ring gear
may be fitted as a replacement to early
engines.
1.Remove automatic gearbox.

+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Gearbox - convertor and
transfer gearbox - V8.
2.Remove 2 bolts securing CKP sensor cover.
3.Remove CKP sensor cover.
4.Remove 2 nuts securing CKP sensor.
5.Remove CKP sensor.

ENGINE - V8
REPAIRS 12-2-33
6. Early engines: Remove 4 bolts securing drive
plate clamp ring and remove ring.
7. Early engines: Remove drive plate from hub.
8. Early engines: Remove 6 Allen bolts securing
hub and starter ring gear, remove hub, starter
ring gear and collect spacer.
On early engines, balance weights are on
engine side of drive plate; replacement drive
plates will have balance weights on torque
converter side of drive plate.9. Later engines: Remove 4 bolts securing drive
plate clamp ring and remove ring.
10. Later engines: Remove drive plate.
11. Later engines: Remove 6 Allen bolts securing
starter ring gear to crankshaft; remove starter
ring gear.
Refit
1. All engines: Ensure bolt holes in crankshaft
are clean and dry.
2. All engines: Clean all components
3. All engines: Check that drive plate is free from
cracks and distortion.
4. Early engines: Fit hub, starter ring gear and
spacer to crankshaft, fit Allen bolts and tighten
to 78 Nm (58 lbf.ft).
5. Early engines: Fit drive plate and clamp ring,
fit bolts and tighten to 45 Nm (33 lbf.ft).
6. Later engines: Fit starter ring gear, fit Allen
bolts and tighten to 85 Nm (63 lbf.ft).
7. Later engines: Fit drive plate and clamp ring,
fit bolts and tighten to 45 Nm (33 lbf.ft).
8.Clean CKP sensor and mating face.
9.Fit crankshaft sensor and tighten nuts to 6 Nm
(5 lbf.ft).
10.Fit CKP sensor cover and tighten bolts to 6 Nm
(5 lbf.ft).
11.Fit CKP sensor multiplug to bracket.
12.Fit automatic gearbox.

+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Gearbox - convertor and
transfer gearbox - V8.

ENGINE - V8
REPAIRS 12-2-37
Gasket - sump
$% 12.60.38
Remove
1.Release fixings and remove battery cover.
2.Disconnect battery earth lead.
3.Remove dipstick.
4.Raise the vehicle on a ramp.
5.Drain engine oil.

+ MAINTENANCE, PROCEDURES,
Engine oil - V8 engine.
6.Remove 8 bolts securing cross member and
remove cross member.
7.Raise front of vehicle under body to increase
clearance between engine and front axle.
8.Disconnect and release gearbox oil cooler pipe
and discard 'O' ring. 9.Remove 2 clips securing oil cooler pipes at
front of sump.
10.Remove clip securing oil cooler pipes to side of
sump.
11.Remove clip bracket.
12.Remove 2 forward facing bolts securing sump
to bell housing.
13.Remove 4 rear facing bolts securing sump to
bell housing.
14.Remove 2 bolts in sump recess.
15.Remove 3 nuts securing front of sump.

ENGINE - V8
12-2-38 REPAIRS
16.Remove 12 bolts securing sump flange to
engine.
17.Manoeuvre sump over front axle and remove
sump.
18.Discard sump gasket.
Refit
1.Clean all traces of sealant from the sump and
sump mating faces using a plastic scraper or
solvent.
2.Ensure bolt holes in cylinder block are clean
and dry.
3.Apply a 5 mm (0.2 in) wide bead of sealant, Part
No. STC 50550, across the cylinder block to
front cover joint and across the cylinder block to
rear main bearing joint. Apply a globule of
sealant to cover the ends of the cruciform
seals, (see illustration).
4.Fit new gasket, dry, to sump, ensuring that
locating tags are correctly positioned.
5.Manoeuvre sump into position, fit and lightly
tighten 2 bolts to retain sump in place, then fit
and lightly tighten remainder of bolts.
6.Working in the sequence illustrated, tighten the
sump bolts to 22 Nm (16 lbf.ft).
7.Position side clip bracket, fit and tighten bolt. 8.Position oil cooler pipe clips, fit and tighten
nuts.
9.Clean gearbox oil cooler pipe 'O' ring recess
and mating face.
10.Lubricate and fit new 'O' ring to gearbox oil
cooler pipe.
11.Position pipe and tighten nut.
12.Lower front of vehicle.
13.Position cross member to chassis, fit bolts and
tighten to 25 Nm (18 lbf.ft).
14.Refill engine oil and fit dipstick.
15.Connect battery earth lead.
16.Fit battery cover and retain with fixings.