Range Rover Classic. Manual — part 179
86
ELECTRICAL
4
REPAIR
ELECTRONIC IGNITION - V8i
A Lucas 35DLM8 distributor is employed. This has a
conventional vacuum advance unit and centrifugal
automatic advance mechanism.
A pick-up module, in conjunction with a rotating timing
reluctor inside distributor body, generates timing
signals. These are applied to an electronic ignition
amplifier module mounted on side of distributor body.
NOTE: Pick-up air gap is factory set. Do
not adjust gap unless pick-up is being
changed or base plate has been moved.
Use a non-ferrous feeler gauge to set air gap.
DISTRIBUTOR - V8i
Service repair no - 86.35.20
Remove
1. Disconnect battery negative lead.
2. Disconnect vacuum hose.
3. Remove distributor cap.
4. Mark distributor body and centre line of rotor
arm.
5. Add alignment marks to distributor and front
cover.
NOTE: Marking distributor enables
refitting in exact original position, but if
engine is turned while distributor is
removed, complete ignition timing procedure
must be followed.
6. Release distributor clamp.
7. Raise distributor, disconnect multiplug from
amplifier unit.
ELECTRICAL
5
REPAIR
Refit
NOTE: If a new distributor is being fitted,
mark body in same relative position as
distributor removed.
8. Leads for distributor cap should be connected as
illustrated.
Figures 1 to 8 inclusive indicate plug lead
numbers.
RH-Right hand side of engine, when viewed
from rear.
LH-Left hand side of engine, when viewed from
rear.
9. If engine has not been turned while distributor
has been removed, carry out instructions 10. to
17. Alternatively proceed to instruction 18.
10. Fit new ’O’ ring seal to distributor housing.
11. Turn distributor drive until centre line of rotor arm
is 30˚ anti-clockwise from mark made on top
edge of distributor body.
12. Position distributor to engine, connect multiplug
to amplifier; fit distributor in accordance with
alignment markings.
NOTE: It may be necessary to align oil
pump drive shaft to enable distributor
drive shaft to engage in slot.
13. Fit clamp and bolt. Secure distributor in exact
original position.
14. Connect vacuum hose to distributor and low
tension lead to coil.
15. Fit distributor cap.
16. Reconnect battery.
17. Using suitable electronic equipment, set ignition
timing.
See Adjustment, Ignition Timing
18. If engine has been turned with distributor
removed, carry out instructions 19. to 29.
19. Set engine-No. 1 piston to static ignition timing
figure.
If engine is 3.9 V8i.
See ENGINE TUNING
DATA, Information, ENGINE 3.9 V8i.
If engine is 4.2 V8i.
See ENGINE TUNING
DATA, Information, ENGINE 4.2 V8i.
20. Turn distributor drive until rotor arm is
approximately 30˚ anti-clockwise from number
one sparking plug lead position on cap.
21. Fit distributor to engine.
22. Check that centre line of rotor arm is now in line
with number one sparking plug lead on cap.
Reposition distributor if necessary.
23. If distributor does not seat correctly in front
cover, oil pump drive is not engaged. Engage by
lightly pressing down distributor while turning
engine.
24. Fit clamp and bolt, do not tighten.
25. Set ignition timing statically.
If engine is 3.9 V8i.
See ENGINE TUNING
DATA, Information, ENGINE 3.9 V8i.
If engine is 4.2 V8i.
See ENGINE TUNING
DATA, Information, ENGINE 4.2 V8i.
26. Connect vacuum hose to distributor.
27. Fit distributor cap.
28. Reconnect battery negative lead.
29. Using suitable electronic equipment set the
ignition timing.
See Adjustment, Ignition
Timing
86
ELECTRICAL
6
REPAIR
IGNITION COIL
Service repair no - 86.35.32
Remove
1. Disconnect battery negative lead.
2. Noting their fitted positions, disconnect electrical
leads from ignition coil.
3. Remove two bolts securing ignition coil clamp,
recover suppressor.
4. Remove coil.
Refit
5. Reverse removal procedure.
BULB REPLACEMENT
For bulb type and rating refer to rating shown on the
bulb or bulb replacement list.
See GENERAL
SPECIFICATION DATA, Information, Bulbs
HEADLAMP ASSEMBLY / SEALED BEAM UNIT
Service repair no - 86.40.02
Remove
1. Disconnect battery negative lead.
2. Remove radiator grille.
See CHASSIS AND
BODY, Repair, Radiator Grille
3. Remove three screws and headlamp retaining
rim.
4. DO NOT disturb beam adjusting screws.
5. Withdraw sealed beam unit. Disconnect wiring
plug from rear of unit.
6. Remove three securing screws, pry away
grommet. Remove headlamp bowl.
Refit
7. Reverse removal procedure.
ELECTRICAL
7
REPAIR
HEADLAMP ASSEMBLY/BULB REPLACEMENT
Service repair no - 86.40.02
Remove
1. Disconnect battery negative lead.
2. Remove radiator grille.
See CHASSIS AND
BODY, Repair, Radiator Grille
3. Remove three screws and headlamp retaining
rim.
4. DO NOT disturb beam adjusting screws.
5. Withdraw headlamp unit. Disconnect wiring plug
from rear of unit.
6. Remove rubber dust cover.
7. Release retaining clip, remove bulb
8. Remove three securing screws, pry away
grommet. Remove headlamp bowl.
Refit
9. Reverse removal procedure.
DO NOT touch quartz envelope of bulb. Gently
clean using methylated spirits if contact does
occur.
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