Page 863 of 976

ELECTRICAL
43
REPAIR ANTI-THEFT ALARM ECU (96 MODELS)
Service repair no - 86.55.85
Remove
1.Remove 4 studs securing fascia left hand
closing panel.
2.Remove closing panel.
3.Disconnect 2 multiplugs from ECU.
4.Remove nut securing ECU/relay bracket.
5.Lower bracket.
6.Remove 2 nuts securing ECU to bracket.
7.Remove ECU.
NOTE: A new ECU must be initialised
using TestBook.
Refit
8.Reverse removal procedure.HANDSET (96 MODELS)
If vehicle does not respond to handset immediately, it
may have lost synchronisation. To re-synchronise,
press either button, 4 times in quick succession. If
handset still fails to respond, check batteries, refer to
Owner's handbook. If batteries are okay, it may be
necessary to use emergency key access, refer to
Owner's handbook.
NOTE: New handsets must be initialised
using TestBook.
PASSIVE COIL (96 MODELS)
Service repair no - 86.77.35
Remove
1.Remove steering column shroud.
See
STEERING, Repair, Steering column shroud
2.Release multiplug from harness clip and
disconnect.
3.Release passive coil from starter switch.
4.Remove bulb holder/starter switch shroud.
5.Remove coil.
Refit
6.Fit coil, ensuring switch illumination bulb harness
passes through large cut-out.
7.Secure coil with cable tie.
8.Position bulb holder/starter switch shroud and
locate bulb.
9.Locate bulb holder/starter switch shroud,
ensuring cut-out in shroud aligns with lug on
starter switch.
10.Connect multiplug and secure to clip.
11.Fit column shroud.
Page 872 of 976

86ELECTRICAL
2
OVERHAUL
LUBRICATION
Apply clean engine oil:
a. A spot into rotor spindle before fitting rotor
arm.
Apply Omnilube 2 (or equivalent) grease.
b. Auto advance mechanism.
c. Pick-up plate centre bearing.
d. Pre tilt spring and its rubbing area (pick-up
and base plate assembly).
e. Vacuum unit connecting peg (pick-up and
base plate assembly).
f. Connecting peg hole in vacuum unit
connecting rod.
Fitting pick-up and base plate assembly
1.Pick-up leads must be prevented from fouling
rotating reluctor. Both leads should be located in
plastic guide as illustrated. Check during
re-assembly.
Fitting reluctor
2.Slide reluctor as far as it will go on rotor shaft,
rotate reluctor until it engages with coupling ring
beneath pick-up base plate. Distributor shaft,
coupling ring and reluctor are 'keyed' and rotate
together. Fit 'O' ring, flat washer and retaining
circlip.Pick-up air gap adjustment
1.Air gap between pick-up limb and reluctor teeth
must be set within specified limits, using a
non-ferrous feeler gauge.
2.If adjustment is necessary, loosen two barrel
nuts to set the air gap.
See ENGINE TUNING
DATA, Information, Engine 3.9 V8i
NOTE: When original pick-up and base
plate assembly has been refitted, air gap
should be checked, and adjusted if
necessary.
When fitting a new assembly air gap will require
adjusting to within specified limits.
Amplifier module
1.Before fitting module, apply MS4 Silicone grease
or equivalent heat-conducting compound to
amplifier module backplate, seating face on
distributor body and both faces of heatsink
casting.
Page 904 of 976

ENGINE
OVERHAUL9
5.Check that timing pinLRT-12-045moves
freely in and out of injection pump hub, if pin
does not move freely, slacken 3 bolts, move
gear slightly and re-check.
6.When timing pin moves freely, tighten 3 bolts
to 25 Nm.
7.Remove timing pinLRT-12-045and
flywheel/drive plate locking toolLRT-12-044.
8.Rotate crankshaft twice in a clockwise direction
using crankshaft pulley bolt until flywheel/drive
plate locking toolLRT-12-044can be refitted.
9.Slacken timing belt tensioner securing bolt and
re-tension timing belt.
10.Tighten tensioner bolt to 45 Nm.
11.Fit timing pinLRT-12-045into fuel injection
pump gear hub plate and pump hub. If timing
pin cannot be inserted, slacken injection pump
gear bolts, rotate pump shaft using shaft nut
until pin slides easily into pump hub, Tighten
bolts to 25 Nm.
12.Tighten camshaft gear bolt to 80 Nm.
13.Remove timing pin and flywheel/drive plate
locking tools.
14.Fit plug to flywheel housing, tighten to 12 Nm.
15.Remove crankshaft pulley bolt.
16.Support timing belt front cover on suitable
blocks of wood.
17.Smear a new crankshaft oil seal with engine
oil.
18.Using toolLRT-12-077,fit oil seal from inside
face of front cover.
19.Fit a dry, new gasket to timing belt rear cover.
20.Position timing belt front cover to rear cover.
21.Fit bolts of the correct length in positions
shown.
Page 908 of 976

ENGINE
OVERHAUL13
Inspecting components
1.Measure and record diameter of rocker shaft at
one of the pedestal locations.
2.Measure and record diameter of rocker shaft at
each of the rocker arm locations.
3.Compare measurements obtained and
calculate difference between diameters. If wear
at any rocker shaft location exceeds 0.025 mm,
a new rocker shaft must be fitted.
4.Check rocker arm pads for signs of wear,
replace rocker arms as necessary.
5.Check threads and ball ends of each tappet
adjusting screw for wear. Pay particular
attention to ball ends, replace any showing
signs of flattening on the ball or damage to
threads.
6.Check that each nut runs freely on adjusting
screw threads.
7.Check each push rod for signs of wear and for
straightness, replace as necessary.
8.Check valve caps for signs of wear, replace as
necessary.
9.Check rocker arm bushes for scoring and
wear.
10.Assemble each rocker arm to its fitted location
on rocker shaft and check clearance of bush to
shaft does not exceed 0.12 mm.
11.If clearance exceeds figure given, bushes must
be replaced.Rocker arm bushes - replace
1.Support rocker arm on bed of hand press.
2.Using a suitable piloted mandrel, press bush
out of rocker arm.
3.Lubricate replacement bush with engine oil and
press into rocker arm ensuring that lubrication
holes in bush and arm are aligned.
4.Check that lubrication holes in each rocker arm
are clear.
5.Check that lubrication holes in rocker shaft are
clear.
6.Check spacers and washers for wear, replace
as necessary.
Page 911 of 976
ENGINE
16
OVERHAUL
18.Check sealing washers for damage or
distortion, replace as necessary.
19.Position a new gasket - dry to rocker cover.
20.Position rocker cover to cylinder head, fit 3
flange nuts and working from centre outwards,
tighten to 10 Nm.
21.Lubricate a new 'O' ring with engine oil and fit
to crankcase breather cyclone unit.
22.Fit cyclone unit to rocker cover, fit bolt and
tighten to 9 Nm.
23.Connect breather hoses to cyclone unit, rocker
cover and cylinder block.
Page 915 of 976
ENGINE
20
OVERHAUL
6.Remove spring cup, valve spring and spring
seat. Keep components in their fitted order.
7.Remove and discard valve stem oil seal.
8.Remove valve, and retain in fitted order.
9.Repeat above procedures for remaining
valves.Cylinder head - inspection
1.Decarbonise cylinder head.
2.Examine cylinder head for cracks, pay
particular attention to area between inlet and
exhaust valve seats. Cracks indicate engine
has overheated and cylinder head must be
replaced.
3.Check core plugs for signs of corrosion and
leakage, replace as necessary.4.Check cylinder head for warping using a
straight edge and feeler gauges.
Maximum warping = 0.08 mm
CAUTION: Cylinder head must not be
refaced, if warping exceeds figure given,
head must be replaced.
5.Check valve seat inserts for burning, pitting or
damage, replace inserts if pitting cannot be
removed by valve lapping-in or refacing.
Page 916 of 976
ENGINE
OVERHAUL21
Valve springs - inspection
1.Check free length of each spring = 46.28 mm
2.Check that end coils of each spring are square
to body of spring.Valves and guides - inspection
1.Remove carbon from valves.
2.Examine head of each valve for cracks and
burning and valve seat for pitting or burning,
replace valves as necessary.
3.Check valve seating faces for pitting, if light
pitting cannot be removed during valve
grinding operations, valves may be refaced.
CAUTION: If refacing results in valve head
stand down being exceeded, valves must
be replaced.
4.Check valve seating face angles.
Inlet = 60°00' to 60°30' - included angle =120
°
Exhaust = 45°00' to 45°30' - included angle =
90°
5.Reface or replace valves as necessary.
6.Check each valve stem for wear, measure at
each end and centre of valve stem.
Inlet = 7.96 mm
Exhaust = 7.94 mm
7.Replace any valve with stems that are worn.
Page 919 of 976
ENGINE
24
OVERHAUL
3.Lightly lubricate the tool with engine oil.
4.Insert pilot into valve guide from combustion
chamber side of cylinder head until shoulder of
pilot contacts guide.
5.Check that collet is fully inserted into valve
guide and expand collet against the guide
using a suitable tommy bar.
6.Assemble the 45°cutter,MS621(exhaust
valves) and 60°cutter,MS627(inlet valves) to
toolLRT-12-501.
7.Position toolLRT-12-501and appropriate
cutter to valve seat insert to be refaced.
8.Using the Allen key, adjust position of cutter so
that centre of cutter contacts area of seat insert
to be cut.