1999 LAND ROVER DISCOVERY oil pressure

TORQUE WRENCH SETTINGS
06-4
Engine V8
* New bolts must be fitted
+ Apply sealant, Part Number STC 50552 to threads
TORQUE DESCRIPTION METRIC IMPERIAL
Engine mounting bolts (rear, LH & RH) to gearbox bolts 85 Nm (63 lbf.ft)
Engine mounting (rear, LH & RH) nuts 45 Nm (33 lbf.ft)
Cylinder head bolts tighten, then 90°, then a further 90° * 20 Nm (15 lbf.ft)
Rocker shaft bolts 40 Nm (30 lbf.ft)
Alternator mounting bracket 40 Nm (30 lbf.ft)
Auxiliary drive belt tensioner 45 Nm (33 lbf.ft)
Engine earth lead 22 Nm (16 lbf.ft)
Rocker cover screws/bolts * 8 Nm (6 lbf.ft)
Torque converter to drive plate 50 Nm (37 lbf.ft)
A/C compressor 22 Nm (16 lbf.ft)
ACE pump 22 Nm (16 lbf.ft)
Flywheel to crankshaft 78 Nm (58 lbf.ft)
Crankshaft sensor 6 Nm (5 lbf.ft)
Crankshaft sensor cover 6 Nm (5 lbf.ft)
Spacer and hub to crankshaft - Early engines 85 Nm (63 lbf.ft)
Drive plate and clamp ring - Early engines 45 Nm (33 lbf.ft)
Drive plate to crankshaft Allen bolts - Later engines 85 Nm 63 lbf.ft)
Oil pick up strainer 10 Nm (7 lbf.ft)
Filter head adaptor 13 Nm (10 lbf.ft)
Filter head 8 Nm (6 lbf.ft)
Sump bolts 22 Nm (16 lbf.ft)
Oil pressure switch 15 Nm (11 lbf.ft)
Timing gear cover to cylinder block + 22 Nm (16 lbf.ft)
Oil cooler pipe to timing gear cover 15 Nm (11 lbf.ft)
Crankshaft pulley bolt 270 Nm (200 lbf.ft)
Coolant outlet elbow 22 Nm (16 lbf.ft)
Auxiliary housing 40 Nm (30 lbf.ft)
Jockey pulley 50 Nm (37 lbf.ft)
Camshaft gear 50 Nm (37 lbf.ft)
Rocker shaft bolts 40 Nm (30 lbf.ft)
Connecting rod bolts
Final torque - turn through 80°°20 Nm
80°(15 lbf.ft)
80°
Initial torque - all main bearing cap bolts and side bolts 13.5 Nm (10 lbf.ft)
Final torque - main bearing cap side bolts 11 to 15 45 Nm (33 lbf.ft)
Final torque - main bearing cap bolts 1 to 8 72 Nm (53 lbf.ft)
Final torque - main bearing cap bolts 9 and 10 92 Nm (68 lbf.ft)
Final torque - main bearing cap side bolts 16 to 20 45 Nm (33 lbf.ft)
Viscous fan nut 45 Nm (33 lbf.ft)
Camshaft thrust plate bolts 22 Nm (16 lbf.ft)
Secondary Air Injection adapters 33 Nm (24 lbf.ft)

TORQUE WRENCH SETTINGS
06-6
Engine management system - Td5
Engine management system - V8
+ Apply sealant, Part No. STC 50552 to threads
TORQUE DESCRIPTION METRIC IMPERIAL
ECT sensor15 Nm (11 lbf.ft)
Fuel tank cradle45 Nm (33 lbf.ft)
CKP sensor10 Nm (7 lbf.ft)
MAP and IAT sensor 10 Nm (7 lbf.ft)
Fuel cooler to inlet manifold - upper bolts 25 Nm (18 lbf.ft)
Turbocharger to exhaust manifold 30 Nm (22 lbf.ft)
Turbocharger drain pipe 10 Nm (7 lbf.ft)
Banjo bolt to oil feed pipe 25 Nm (18 lbf.ft)
Fuel temperature sensor 14 Nm (10 lbf.ft)
Pressure regulator 25 Nm (18 lbf.ft)
Glow plugs16 Nm (12 lbf.ft)
EUI clamp bolts32 Nm (24 lbf.ft)
EGR valve to exhaust manifold 10 Nm (7 lbf.ft)
EGR valve to inlet manifold 10 Nm (7 lbf.ft)
EGR clip25 Nm (18 lbf.ft)
TORQUE DESCRIPTION METRIC IMPERIAL
Spark plugs20 Nm (15 lbf.ft)
Fuel tank cradle45 Nm (33 lbf.ft)
ECT sensor +10 Nm (7 lbf.ft)
CKP sensor6 Nm (4.4 lbf.ft)
CMP sensor8 Nm (6 lbf.ft)
KS sensor22 Nm (16 lbf.ft)
Throttle body10 Nm (7 lbf.ft)
Plenum chamber22 Nm (16 lbf.ft)
Breather adaptor6 Nm (4.4 lbf.ft)
Throttle cable abutment bracket 10 Nm (7 lbf.ft)
TP sensor 2.2 Nm (1.6 lbf.ft)
IACV sensor8 Nm (6 lbf.ft)
HO
2S sensor45 Nm (33 lbf.ft)
Ignition coils8 Nm (6 lbf.ft)
Fuel rail9 Nm (7 lbf.ft)

TORQUE WRENCH SETTINGS
06-12
Automatic gearbox - ZF4HP22
+ Apply sealant, Part No. STC 50553 to threads
TORQUE DESCRIPTION METRIC IMPERIAL
Selector lever to selector shaft nut 26 Nm (19 lbf.ft)
Starter inhibitor switch bolts 10 Nm (7 lbf.ft)
Engine to torque converter bolts - Td5 & V8 + 50 Nm (37 lbf.ft)
Closing plate to gearbox housing bolt - V8 7 Nm (5.2 lbf.ft)
Fluid pump to intermediate plate bolts 10 Nm (7 lbf.ft)
Intermediate plate Allen plugs (M14) 40 Nm (30 lbf.ft)
Intermediate plate Allen plugs (M20) 50 Nm (37 lbf.ft)
Oil cooler adaptors42 Nm (31 lbf.ft)
Extension housing bolts 25 Nm (18 lbf.ft)
Oil sump to gearbox housing bolts 8 Nm (6 lbf.ft)
Oil filter Torx screws8 Nm (6 lbf.ft)
Oil pick-up tube Torx screw 8 Nm (6 lbf.ft)
Parking pawl guide Torx screw 10 Nm (7 lbf.ft)
Pressure regulator to valve body assembly 8 Nm (6 lbf.ft)
Lock-up solenoid valve, retaining fork Torx screw 8 Nm (6 lbf.ft)
Lock-up solenoid valve assembly to valve body Torx screws 8 Nm (6 lbf.ft)
Gearbox bell housing (intermediate plate and converter housing to gearbox casing) bolts 46 Nm (34 lbf.ft)
Speed sensor bracket screws 8 Nm (6 lbf.ft)

CAPACITIES, FLUIDS, LUBRICANTS AND SEALANTS
09-4
Gearbox oil
Manual Gearbox: Use Texaco MTF 94 oil for refill
and topping-up.
Automatic Gearbox: Use Texamatic 9226, ATF
Dexron 11D or Dexron 111 for refill and topping-up
Transfer box
Use Texaco Multi-Gear 75W/90R or oil meeting
specification API GL5.
Front and rear axles
Use Texaco Multi-Gear 75W/90R.
Air Conditioning
Use lubricating oil Nippon Denso ND-8.
General Greasing
Use Multipurpose Lithium Base Grease N.L.G.I.
consistency No. 2.
Bonnet latch
Lubricate cable and latch with oil.
Sealants
The following table lists those sealants which are
used during repair / overhaul procedures covered in
this manual; it is essential that the sealant specified
for a particular procedure is used at all times.
Component Application Land Rover
Part No.
Td5 Engine Timing chain fixed
guide Allen screwSTC 50552
Td5 Engine Camshaft cover
gasket joint lineSTC 50550
Td5 Engine Oil pick-up strainer
Torx screwsSTC 50552
Td5 Engine Oil pump drive
sprocket retaining
boltSTC 50552
Td5 Engine Timing chain cover,
crankshaft rear oil
seal and sump
gasket joint linesSTC 50550
Td5 Engine Oil pressure relief
valve plugSTC 50552
Td5 Engine Camshaft carrier to
cylinder headSTC 4600
Td5 Engine Timing cover STC 50550
V8 Engine Sump gasket to
cylinder blockSTC 50550
V8 Engine 'V' grooves at end
of cylinder head -
Inlet manifold
gasketSTC 50550
V8 Engine Cruciform seal
endsSTC 50550
V8 Engine Dipstick tube STC 50554
V8 Engine Timing cover bolts STC 50552
Engine
Management
System - V8Engine coolant
temperature (ECT)
sensor threadsSTC 50552
Manifolds and
Exhaust
System - V8'V' grooves at end
of cylinder head -
Inlet manifold
gasketSTC 50550
Manual
Gearbox -
R380Gear selector
housingSTC 4404
Manual
Gearbox -
R380Selector housing
boltsSTC 50552
Manual
Gearbox -
R380Input shaft oil seal
housingSTC 4404
Manual
Gearbox -
R380Reverse inhibitor
shaft threadsSTC 50552

MAINTENANCE
10-6 PROCEDURES
Handbrake
Check
1.With the vehicle stationary, on a level surface,
apply and release handbrake and check for
correct operation.

+ BRAKES, ADJUSTMENTS,
Handbrake.
Alarm handset battery
Replace
1.Insert the blade of a small, flat bladed
screwdriver into the slot at the rear of the
handset and prise the back from the handset.
2.Slide the battery out of the clip taking care not
to touch the circuit board or the battery
contacts.
3.Press and hold one of the buttons for at least 5
seconds.
4.Fit the replacement battery ensuring that
correct polarity is maintained (+) side facing
upwards. Avoid touching the flat surfaces of the
battery.
5.Press the 2 halves of the handset together.
6.Check that handset operates correctly.
Road wheels
Remove
1.Mark the wheel to stud relationship to ensure
that the wheels are refitted in the same
position.
2.Loosen wheel nuts. Raise the vehicle to a
wheel-free condition and remove the wheel
nuts.
Tyres
Check
1.Check tyres for compliance with manufacturer's
specification; visually for cuts, lumps, bulges,
uneven tread wear and depth.
2.Check tyre pressures, condition and tread
depth. Measure the tread depth across the
width of the tyre and around the circumference.
Brake pads, discs and calipers
Check
1. Check front and rear brake pads for wear,
ensure all pads are wearing evenly.
2.Check brake discs for signs of cracking,
excessive scoring or oil contamination.
3.Check calipers for signs of fluid leaks.
4.Clean excessive deposits of brake dust from
pads, calipers and disc shields using brake
cleaner.

ENGINE - V8
DESCRIPTION AND OPERATION 12-2-5
1Core plugs
2Cylinder block
3Camshaft
4Dipstick tube, clamp and bolt
5Woodruff key
6Timing chain
7Camshaft timing gear
8Washer
9Bolt - camshaft timing gear
10Thrust plate - camshaft end-float
11Bolt - camshaft thrust plate
12Gasket - timing cover
13Timing cover
14Oil pressure switch
15Bolt
16Crankshaft front oil seal
17Oil filter element
18Crankshaft front pulley
19Washer
20Bolt - crankshaft front pulley
21Upper main bearing shell
22Upper centre main bearing shell and thrust
washer
23Crankshaft
24Woodruff key
25Crankshaft timing gear
26Lower main bearing shells
27Numbers 1, 2 and 3 main bearing caps
28Bolt - main bearing caps
29Oil pick-up pipe and strainer30'O' ring
31Bolt - oil pick-up pipe
32Gasket - sump
33Sump
34Bolt - sump
35Sump oil drain plug
36Sealing washer
37Spacer, washers and nut - oil pick-up pipe
38Number 4 main bearing cap
39Bolt - connecting rod big-end bearing cap
40Connecting rod big-end bearing shell - lower
41Connecting rod big-end bearing cap
42Number 5 - rear main bearing cap
43Cruciform seal - rear main bearing cap
44Number 5 - rear main bearing shell
45Crankshaft rear oil seal
46Crankshaft knock sensor
47Side bolt - main bearing cap
48Side Allen bolt - main bearing cap
49Dowty washers
50Connecting rod big-end bearing shell - upper
51Connecting rod
52Piston
53Gudgeon pin
54Oil control ring
55Top compression ring
562nd compression ring
57Flywheel/drive plate and starter ring gear
58Bolt - flywheel/drive plate

ENGINE - V8
12-2-6 DESCRIPTION AND OPERATION
Description
General
The V8 petrol engine is an eight cylinder, water cooled unit having two banks of four cylinders positioned at 90 degrees
to each other. The engine comprises five main castings - two cylinder heads, cylinder block, timing cover and the oil
sump, all of which are manufactured from aluminium alloy.
NAS market vehicles from 03 model year receive a 4.6 litre version of the V8 engine to replace the previous 4.0 litre
version.
Cylinder heads
The cylinder heads are fitted with replaceable valve guides and valve seat inserts with the combustion chambers
formed in the head. Each cylinder head is sealed to the cylinder block with a gasket. The exhaust manifolds are bolted
to the outside of each cylinder head whilst the inlet manifolds are located in the centre of the 'Vee' and are bolted to
the inside face of each head. Inlet and exhaust manifolds are sealed to the cylinder heads by means of gaskets.
Each cylinder has a single inlet and exhaust valve. The exhaust valves are of the 'carbon break' type, a recess on the
valve stem prevents a build-up of carbon in the valve guide by dislodging particles of carbon as the valve stem moves
up and down the guide. Inlet and exhaust valve stem oil seals are fitted at the top of each valve guide. Valve operation
is by means of rocker arms, push rods and hydraulic tappets. Each of the rocker arms is located on a rocker shaft
which is supported by means of pedestals bolted to the cylinder heads. A spring, positioned on either side of each
rocker arm, maintains the correct relative position of the arm to its valve stem. The rocker arms are operated directly
by the push rods which pass through drillings in the cylinder heads and cylinder block. The bottom end of each push
rod locates in a hydraulic tappet operated by the single, chain driven camshaft.
The rocker covers are bolted to the cylinder heads and are sealed to the heads by a rubber gasket. Stub pipes for
crankcase ventilation hose connections are fitted to each rocker cover, the pipe in the right hand cover incorporates
an oil separator. The engine oil filler cap is situated in the right hand cover.
Cylinder block and camshaft
The cylinder block is fitted with cast iron cylinder liners which are shrink fitted and locate on stops in the block. The
camshaft is positioned in the centre of the cylinder block and runs in one piece bearing shells which are line bored
after fitting. Camshaft end-float is controlled by a thrust plate bolted to the front of the cylinder block. A timing gear,
chain driven by the crankshaft timing gear is bolted to the front of the camshaft.
Crankshaft and main bearings
The crankshaft is carried in five main bearings. The upper main bearing shell locations are an integral part of the
cylinder block casting. The lower main bearing caps are bolted to the cylinder block on either side of the upper bearing
shell locations with an additional bolt being inserted into each cap from either side of the cylinder block. The rear
main bearing cap carries the crankshaft rear oil seal and is sealed to the cylinder block by means of cruciform shaped
seals in each side of the cap. Number four main bearing cap carries the stud fixing for the oil pick-up pipe. Lower
main bearing shells are plain whilst the upper shells have an oil feed hole and are grooved. Crankshaft end-float is
controlled by the thrust faces of the upper centre shell. The crankshaft timing gear is located on the front of the
crankshaft by means of a Woodruff key which is also used to drive the gear type oil pump. The flywheel/drive plate
carries the crankshaft position sensor reluctor ring and is dowel located and bolted to the flywheel.
Timing cover
The timing cover is bolted to the front of the cylinder block and is sealed to the block with a gasket. The disposable,
full flow oil filter canister is screwed on to the timing cover which also carries the oil pressure switch, oil pressure relief
valve and crankshaft front oil seal. The gear type oil pump is integral with the cover which also has an internal oilway
to direct oil from the oil cooler to the filter.
NOTE: Oil coolers are only fitted to vehicles up to VIN 756821.

ENGINE - V8
12-2-8 DESCRIPTION AND OPERATION
Lubrication
A - To oil cooler, B - From oil cooler
NOTE: The oil cooler is only fitted to vehicles up to VIN 756821.
1Rocker shaft assembly
2Hydraulic tappet
3Oil pump4Oil filter element
5Oil pick-up pipe and strainer
6Oil pressure switch