1999 LAND ROVER DISCOVERY ECU

MANIFOLDS AND EXHAUST SYSTEMS - V8
REPAIRS 30-2-9
Tail pipe
$% 30.10.22
Remove
1.Raise vehicle on ramp.
2.Remove 3 nuts securing intermediate pipe/
silencer to tail pipe.
3.Release and remove tail pipe from mounting.
4.Collect intermediate pipe/silencer to tail pipe
gasket.
Refit
1.Clean silencer and tail pipe mating faces.
2.Position tail pipe and secure on mounting.
3.Using a new gasket, align tail pipe to
intermediate pipe/silencer.
4.Fit nuts to intermediate pipe/silencer and
tighten to 25 Nm (18 lbf.ft).
Heat shield - brake servo - Without
Secondary Air Injection
$% 30.10.48
Remove
1.Release fixings and remove battery cover.
2.Disconnect battery earth lead.
3.Remove nut securing heat shield bracket to
valance.
4.Remove 2 bolts securing heat shield and
remove heat shield.
Refit
1.Fit heat shield, tightening bolts to 25 Nm (18
lbf.ft) and nut to 10 Nm (7 lbf.ft).
2.Connect battery earth lead.
3.Fit battery cover and secure with fixings.

MANIFOLDS AND EXHAUST SYSTEMS - V8
30-2-10 REPAIRS
Heat shield - brake servo - With
Secondary Air Injection
$% 30.10.48
Remove
1.Release fixings and remove battery cover.
2.Disconnect battery earth lead.
3.Remove nut securing heat shield bracket to
valance.
4.Remove 2 bolts securing heat shield and
remove heat shield.
Refit
1.Fit heat shield, tightening bolts to 25 Nm (18
lbf.ft) and nut to 10 Nm (7 lbf.ft).
2.Connect battery earth lead.
3.Fit battery cover and secure with fixings.
Gasket - inlet manifold - lower
$% 30.15.08
Remove
1.Remove both rocker covers.
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+ ENGINE - V8, REPAIRS, Gasket
- rocker cover - LH.
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+ ENGINE - V8, REPAIRS, Gasket
- rocker cover - RH.
2.Release and disconnect LH injector harness
and multiplugs.
3.Release 3 clips securing top hose and remove
top hose.
4.Remove auxiliary drive belt.

+ CHARGING AND STARTING,
REPAIRS, Belt - auxiliary drive.

MANIFOLDS AND EXHAUST SYSTEMS - V8
REPAIRS 30-2-11
5.Remove 3 bolts securing ACE pump, release
pump and position aside.
6.Remove 2 bolts securing alternator and
remove alternator. 7.Remove 3 bolts securing PAS pump pulley and
remove pulley.
8.Remove jockey pulley.
9.Position tray to catch spillage, release PAS
pump high pressure pipe.
CAUTION: Always fit plugs to open
connections to prevent contamination.
10.Remove bolt securing oil cooling pipe and
release bracket from auxiliary housing.
11.Remove two bolts securing PAS pump.
12.Remove 5 bolts and one nut securing auxiliary
housing. Pull housing forward, release PAS
pump and remove housing.

MANIFOLDS AND EXHAUST SYSTEMS - V8
30-2-12 REPAIRS
13.Remove 4 bolts securing top hose outlet and
remove outlet pipe.
14.Remove and discard 'O' ring.
15.Position absorbent cloth to catch spillage.
16.Disconnect fuel pipe.
CAUTION: Always fit plugs to open
connections to prevent contamination.17.Using the sequence shown, remove 12 bolts
securing the inlet manifold.
18.Remove inlet manifold.
19.Remove 2 bolts securing inlet manifold gasket
and collect gasket clamps.

MANIFOLDS AND EXHAUST SYSTEMS - V8
REPAIRS 30-2-13
20.Remove inlet manifold gasket.
21.Remove gasket seals.
Refit
1.Clean all traces of sealant from cylinder head
and cylinder block notches.
2.Clean mating faces of cylinder block, cylinder
head and inlet manifold.
3.Apply sealant, Part No. STC 50550 to cylinder
head and cylinder block notches.
4.Fit new gasket seals, ensuring ends engage
correctly in notches.
5.Fit new inlet manifold gasket.
6.Position gasket clamps and fit bolts, but do not
tighten at this stage.
7.Position inlet manifold to engine. Fit manifold
bolts and, working in the sequence shown,
tighten bolts initially to 10 Nm (7 lbf.ft) then to
51 Nm (38 lbf.ft).
8.Tighten gasket clamp bolts to 18 Nm (13 lbf.ft).
9.Connect fuel pipe.
10.Clean top hose outlet pipe mating faces.
11.Fit new 'O' ring to outlet pipe.
12.Position outlet pipe, fit bolts and tighten to 22
Nm (16 lbf.ft).
13.Position alternator, fit bolts and tighten to 45
Nm (33 lbf.ft).
14.Position PAS pump to auxiliary housing and
locate housing on engine. Fit bolts and tighten
to 40 Nm (30 lbf.ft).15.Fit and tighten auxiliary housing nut to 10 Nm (7
lbf.ft).
16.Fit bolts securing PAS pump and tighten to 22
Nm (16 lbf.ft).
17.Position oil cooling pipe bracket fit bolt and
tighten to 22 Nm (16 lbf.ft).
18.Fit and tighten PAS pump high pressure pipe.
19.Position jockey pulley and tighten bolt to 50 Nm
(37 lbf.ft).
20.Clean PAS pump pulley mating faces.
21.Position PAS pump pulley, fit bolts and tighten
to 22 Nm (16 lbf.ft).
22.Clean ACE pump dowels and dowel holes.
23.Position ACE pump, fit bolts and tighten to 22
Nm (16 lbf.ft).
24.Fit auxiliary drive belt.

+ CHARGING AND STARTING,
REPAIRS, Belt - auxiliary drive.
25.Secure injector harness and connect injector
multiplugs.
26.Position top hose and secure clips.
27.Fit rocker covers.
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+ ENGINE - V8, REPAIRS, Gasket
- rocker cover - LH.
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+ ENGINE - V8, REPAIRS, Gasket
- rocker cover - RH.
28.Check and top up PAS fluid

MANIFOLDS AND EXHAUST SYSTEMS - V8
30-2-14 REPAIRS
Gasket - exhaust manifold
$% 30.15.12
This procedure is the same for both exhaust manifold
gaskets.
Remove
1.Raise front of vehicle.
WARNING: Do not work on or under a
vehicle supported only by a jack. Always
support the vehicle on safety stands.
2.Remove 3 nuts securing front pipe to exhaust
manifold, release front pipe and collect gasket.3.Remove 8 bolts and spacers securing exhaust
manifold.
4.Remove exhaust manifold.
5.Remove 2 manifold gaskets.
Refit
1.Clean exhaust manifold and cylinder head
mating face.
2.Position exhaust manifold and new gaskets on
cylinder head.
3.Fit spacers and exhaust manifold securing
bolts and, working from the centre outwards,
tighten bolts to 38 Nm. (28 lbf.ft).
4.Clean front pipe and manifold mating faces.
5.Using a new gasket, position front pipe, fit nuts
and tighten to 30 Nm. (22 lbf.ft).
6.Remove stand(s) and lower vehicle.

MANIFOLDS AND EXHAUST SYSTEMS - V8
REPAIRS 30-2-15
Gasket - inlet manifold - upper - Without
Secondary Air Injection
$% 30.15.24
Remove
1.Release fixings and remove battery cover.
2.Disconnect battery earth lead.
3.Remove bonnet.

+ EXTERIOR FITTINGS, REPAIRS,
Bonnet.
4.Release MAF sensor harness from clip.
5.Loosen clips securing air intake hose. Release
and remove air intake hose.
Note: Pre 03 MY air intake hose illustrated.
6.Disconnect throttle and cruise control cables.
Release cables from abutment bracket and
position aside. 7.Disconnect EVAP pipe from inlet plenum.
8.Disconnect multiplug from throttle body.
9.Remove clip securing breather hose to throttle
body and release breather hose.
10.Position a drain tray beneath the engine to
collect coolant.
11.Release clips securing coolant hoses to
throttle body and disconnect hoses.

MANIFOLDS AND EXHAUST SYSTEMS - V8
30-2-16 REPAIRS
12.Disconnect brake servo vacuum pipe from inlet
plenum.
13.Disconnect breather hose from inlet plenum.
14.Remove bolt securing coolant rails.
15.Release engine harness from bulkhead clips
and position aside.
16.Remove 4 bolts securing ignition coils and
position ignition coils aside. 17.Release plug leads from upper manifold clips.
18.Disconnect multiplug from IACV.
19.Release and disconnect IACV hose.