Land Rover 90 110 Workshop Rover Manual

							ELECTRICAL EQUIPMENT 
ELECTRICAL PRECAUTIONS 
86 
The following  guidelines  are intended  to ensure  the 
safety  of the  operator  whilst preventing  damage  to 
electrical  and any electronic  components  fitted to the 
vehicle. 
Before  commencing  any  test procedure 
on a vehicle 
ensure that the  test equipment  is working correctly  and 
any  harness 
or connectors  are in good condition,  this 
particularly  applies to mains  leads and plugs. 
WARNING:  Before commencing  work on an ignition 
system,  all high  tension  terminals,  adaptors and 
diagnostic  equipment 
for testing should be inspected  to 
ensure  that they  are adequately  insulated and shielded 
to  prevent  accidental  personal contacts and minimize 
the  risk 
of shock.  Wearers of surgically  implanted 
pacemaker  devices should not be in close  proximity  to 
ignition  circuits or diagnostic  equipment. 
L 
Polarity 
Never rcversc connect the vehicle  battery  and  always 
observe 
the correct  polarity  when connecting  test 
equipment. 
High  voltage  circuits 
Whenever  disconnecting  live high  tension  circuits 
always  use  insulated pliers and 
never allow the open 
end  of a high  tension  lead 
to come into contact  with 
other  components  particularly  electronic  control units. 
Exercise  caution  when  measuring  the  voltage 
on the 
coil  terminals  while the engine  is running,  since, high 
voltage 
spikes can  occur  on these terminals. 
Connectors  and harness 
Always  ensure  that thesc items are  dry  and  oil free 
before  disconnecting  and connecting  test  equipment. 
Never 
forcc connectors apart either  by using  tools or by 
pulling 
on the  wiring  harness.  Always ensure locking 
tabs  are disengaged  before  removal and note 
orientation to  enable correct reconnection.  Ensure that 
any  protective  covers  and  substances  are replaced 
if 
disturbed.  Having confirmed  a component  to be  faulty 
switch
-off  the  ignition  and disconnect  the  battery. 
Rcmove the  component and support  the disconnected  harness. 
When replacing  the component  keep  oily 
hands  away from electrical  connection  areas and push 
connectors home  until any locking  tabs fully  engage. 
Battery  disconnecting , 
Before  disconnecting  the battery,  switch off all 
electrical  equipment. 
Battery charging 
Recharge  the  battery out of the vehicle  and keep  the 
top  well  ventilated. While being charged  or discharged, 
and  for  approximately  fifteen  minutes afterwards, 
batteries  emit  hydrogen 
gas which is flammable. 
Always  ensure any battery  charging  area is well 
ventilated  and  that every  precaution  is taken  to avoid 
naked  flames  and sparks. 
GENERAL  PRECAUTIONS 
Switch-off ignition prior  to making any connection or 
disconnection in the system as clcctrical  surge caused 
by  disconnecting 
‘live’ connections  can damage 
electronic  componcnts. 
Ensure  hands  and  work surfaces  are clcan  and 
frcc of 
grease,  swarf,  etc.  as  grease collects  dirt  which  can 
cause tracking 
or high-resistance  contacts. 
When  handling  printed circuit boards,  treat 
them as 
you  would  a 
hi-fi record - hold by thc edges only. 
Prior  to commencing 
a test,  and periodically  during a 
test, touch a good  earth,  for instance,  a  cigar lighter 
socket, 
to discharge  body static  as  some  clcctronic 
components are  vulnerable to static electricity. 
TEST  EQUIPMENT 
A  range  of ‘Fast  Check’  testers is available  to provide  a 
means  of fast  effective  diagnosis 
of faults in electronic 
systems  currently  fitted  to Land 
Rover and  Range 
Rover  vehicles. 
It  is essential  that operators  familiarise  themselves  with 
the component> of the  system to be checked  and the 
instruction for the  relevant  fast check  test before 
commencing  diagnosis.  
						

							ELECTRICAL EQUIPMENT- V8 ENGINE DISTRIBUTOR 
OVERHAUL V8 ENGINE DISTRIBUTOR 
DISMANTLE 
1. Unclip and remove  the distributor  cap. 
2. Withdraw the rotor arm. 
3. Remove  the contact  breaker  spring anchor nut  and 
lift off: 
a) the  top
-half of insulation  bush 
b) 
the low  tension  lead (Black) 
c)  the  capacitor  lead (Orange). 
4.  Remove the  contact breaker  retaining  screw, plain 
and  spring  washer  and  remove  contact  set 
assembly 
. 
5. Remove the complete  insulation  bush. 
6. Remove the capacitor. 
7. Remove the dwell-angle adjuster  screw and spring. 
8. Remove thc two screws  and withdraw  the vacuum 
unit  and rubber joint  washer. 
9. Remove the three  screws and  lift off the centrifugal 
advance  cover
-plate  with the  cover  plate earth 
lead. 
10.  Punch 
out the drive  pinion  roll-pin and  remove  the 
drive  pinion  and tab washer. 
. 
-,- 
INSPECTION 
11. Examine  the  parts  for wear  and  replace  as 
necessary.  Renew  the  capacitor  and  contact set. 
Examine  the  distributor  cap for cracks  and 
tracking.  Renew the cap 
if the electrodes  are worn 
and  burned. 
If the cap is serviceable  fit a new H.T. 
pick-up  brush  and spring.  Renew the rotor  arm if 
cracked and if the metal  contact  is burnt and  worn. 
Check 
the low  tension  lead  for  continuity  and 
rcnew if faulty. Check  the vacuum  unit diaphragm 
by  withdrawing 
the air and  placing a finger over the 
air pipe  to determine 
if the  vacuum  is being  held. 
Renew  the unit 
if unsatisfactory. 
ASSEMBLE 
When  assembling,  smear  the centrifugal  cover-plate 
and  vacuum  lever  with Chevron 
SR1 grease or 
equivalent. 
12.  Fit 
the tab  washer  and drive  pinion  and secure  with 
--. l? 
a new roll  pin. 
with  the three  screws  noting that one screw  is used 
to  retain  the centrifugal  advance cover plate earth 
lead. 
14.  Fit the  vacuum  unit and  rubber  joint  washer  and 
ensure  that the operating  lever 
is inserted between 
the two plates  which make up the  centrifugal cover 
plate  assembly. 
Fit the cefitrjfqz! a&..ncP, colJer-p!atP, 2nd Secure 
2 
15.  Fit  the dwell  angle  adjustment  screw and spring. 
16.  Fit the  capacitor. 
17. Fit the  contact  breaker  set ensuring  that  the small 
post  protruding  from  below the contact  set locates 
through  the hole  in the cover  plate into the  hole 
in 
the end of the  vacuum  unit actuating lever.  Secure 
with  the screw, plain  and spring  washers. 
18. Assemble  the contact  breaker  spring insulating 
bushes  and electrical  leads,  as  illustrated 
in thc 
following sequence: 
a)  lower  bush 
b) spring 
c) low  tension  lead 
d)  capacitor  lead 
e)  top  bush 
f)  and  secure  with the anchor  spring nut. 
cam  lubrication  pad. 
19. Apply a few  drops of engine  oil to the  distributor 
Sl 
e 
&-- a 
.il 
20. Using  a feeler  gauge, and  the dwell  angle adjuster, 
set  the  contact  breaker  points 
to a nominal 
clearance  of 
0,35 to 0,40 mm (0.014 to 0.016 in). 
Once the distribute: is fitted te the engine the 
dwell  angle  must  be adjusted  to 26 to 28 using 
special tuning  equipment. 
21.  Fit the  rotor  arm. 
22.  Fit  the  distributor  cap  ensuring  that  the 
H.T. c$ 
23. When  fitting the  distributor to the  engine  insert a 
pick
-up brush moves freely 
in its location. 
new 
0 ring seal  into the body groove.  
						

							.. . ... .. I .. .... d , . .... .. I. ..... .. ,,,. ., .. ., . 
ELECTRICAL EQUIPMENT- V8 ENGINE DISTRIBUTOR 
L 
86 
5 
KEY TO DISTRIBUTOR COMPONENTS 
1. Distributor  cap 
2. Rotorarm 
3. Contact breakcr assembly 
4. Capacitor and retaining  screw 
5. Dwell-angle adjuster  screw and spring 
6. Vacuum  unit and retaining  screws 
7. Vacuum unit joint  washer 
8. Centrifugal  advance cover plate and retaining 
scrcws 
12. Thrust  washer 
13. Contact  breaker L.T. lead and grommet 
14. Distributor  cam 
15. Distributor drive dog .I 10. vacuum  unit actuating  iever 
ST1133M 
3  
						

							86 
OVERHAUL DUCELLIER  DISTRIBUTOR - four 
cylinder  engine 
DISMANTLE 
distributor. 
16. Examine  the advance mechanism  of the  cam,  check e 
the  shaft  for  excessive side play.  If any of these 
parts  arc  damaged 
or worn  renew  the complcte 
ELECTRICAL EQUIPMENT - FOUR CYLINDER DISTRIBUTOR 
1. Remove the distributor  from the engine. 
2. Remove the distributor cap. 
3. Remove  the rotor  arm. 
4.  Remove  the dust cover. 
5. Remove  the felt pad  from  the top  of the rotor. 
6. Remove  the two  screws  retaining  the  condenser 
and  vacuum  unit  and remove  the condenser  lead 
from  the connector block. 
post. 
7. Remove  the retaining  clip  from  the eccentric ‘D’ 
8. Mark  the position of the serrated  cam in relation  to 
the  spring seat 
of the  vacuum  operating link. 
v ST1279M 
9. Disengage  the vacuum  operating  link and serratcd 
cam  from  the eccentric ‘D’ post  and  remove  the 
vacuum unit. 
10.  Remove 
the retaining  screw and withdraw  the fixed 
contact  plate. 
11. Remove the retaining  clip and  insulation  washer. 
12. Release the connector  block from the distributor 
body. 
13. Lift out the moving  contact complete  with 
connector  block and leads. 
14.  Mark  the relationship 
of the base  plate  to the  body 
and  remove the  retaining screw.  Whilst holding  the 
pressure  pad clear 
of the rotor,  withdraw the base 
plate. 
15. Remove  the moving  contact  post-plate. 
INSPECTION 
NOTE:  The distributor  drive dog 
is loosely  retained on 
the drive  shaft,  the ‘float’ allows for any  misalignment. 
17. Examine  all other components  for damage or 
excessive  wear and renew  where  necessary. 
18. Check the  distributor  cover for signs of tracking or 
cracks  and  check  that the pick-up  brush moves 
freely 
in its  holder. 
19.  Check  the rotor  arm 
for damage,  electrode 
security, burning and tracking. 
continued 
4  
						

							ELECTRICAL EQUTPMENT- FOUR CYLINDER DTSTRIBUTOR 186 I 
REASSEMBLE  OVERHAUL 
LUCAS 45D4 DISTRIBUTOR - Four 
cylinder engine 20. Using Rctinax  ‘A’ or equivalent  grease  lubricate 
the  centrifugal  weight pivot  posts  and lightly  smear 
the  cam  pressure  pad and  contact  pivot post. 
21.  Fit the pressure  pad and spring to  the base  plate. 
22.  Fit the  base  plate  to the  body,  lining up the  marks, 
and  secure  with the retaining  screw and clip on the 
opposite  side 
to the vacuum  unit. 
23. Smear a little grease on the post  and fit the moving 
contact post
-plate  to the base plate. 
24. Offer up the vacuum  unit to the  body  and fit the 
25 
I 
26. 
27. 
28. 
29. 
30. 
31. 
32. 
33. 
34. 
35. 
36. 
37.  operating 
link and  serrated  cam 
to the ‘D’ post. 
Ensure  that the identification  marks line up 
-see 
instruction 
8. Secure  the assembly  with  the spring 
clip. 
Secure the  vacuum  unit  and condenser  to the  body 
with  the remaining  screw and clip. 
Fit the  fixed  contact  and  loosely retain with the 
screw. 
Fit the  moving  contact ensuring that the  leaf spring 
locates 
in the nylon guide. 
Fit the connector  block to the body. 
Fit  the  insulation  washer  and retain assembly with 
the spring  clip. 
Fit condenser lead  to connector  block. 
Place  the felt pad 
in the top  of the  rotor  and  add  a 
few  drops  of 
oil. 
Smear a small quantity of grease on the rotor  cam. 
Adjust  the contact  point  gap  to a  datum  setting  of 
0,43 mm (0.017 in) with  a  feeler gauge  by turning 
the 
rotor spindle  until a cam fully  opens  the points. 
Move the  fixed contact  plate 
to obtain the required 
gap  and  tighten  the retaining screw. 
Fit  the  distributor  to the  engine. 
Fit  the  dust  cover. 
Fit  the  rotor  arm and distributor  cap. 
Connect 
the H.T. leads  to the  appropriate  spark 
plugs. 
Dismantling 
I. Remove  the rotor  arm. 
2. Extract the felt pad, if fitted, from the  cam. 
3. Removc  the two vacuum  unit retaining  screws, tilt 
.the unit to disengage  the  operating  arm and 
remove  the vacuum  unit. 
4. Push the low tension  lead  and  grommet  into the 
inside 
of the  body. 
5. Remove  the securing  screws and lift out the base 
plate  assembly. 
6.  Drive  out the  parallel 
pin retaining  the drive dog. 
7.  Remove the  drive dog and thrust  washer. 
8. Remove  the shaft  complete  with automatic 
advance  mechanism  and steel washer. 
9. Push  the moving  contact  spring inwards  and detach 
the  low  tension  connector  from the spring loop. 
10. Removc the  screw  to release  the  earth  lead and 
capacitor. 
11. Remove the sccuring screw  and lift off the contact 
set. 
Inspection 
12. Do not  dismantle  the advance  mechanism  beyond 
removing  the  control  springs.  If any  of the  moving 
parts 
or the  cam  are worn  or damagcd, renew  the 
complete shaft assembly. 
13.  Check  the 
fit of the  shaft  in its  bearing: if the 
bcaring allows cxcessive side  play,  renew  the 
completc distributor. 
14. Check  the base  plate  assembly; if the spring 
between  the plates 
is damaged or if the plates  do 
not  move  freely, renew  the assembly. 
15. Check  the  distributor  cap for signs of tracking or 
cracks  and check  that  the  pick-up brush  moves 
freely  in its  holder. 
16. Chcck the rotor arm for damage,  electrode 
security,  and burning 
or tracking. 
Keassem bling 
17. Reverse  the  procedure in 1 to 11, noting thc 
following  instructions. 
18. Lubricate the contact  pivot  post  with Retinax  ‘A’ 
or  equivalent  grease. 
19. Ensure  that  the steel washer  is fitted  on the  shaft 
and lubricate 
the shaft  with  Rocol  MP (Molypad). 
20. 
Fit the  thrust  washer  with  its  raised  pips  towards 
the  drive  dog. 
continued 
5  
						

							14 ELECTRICAL EQUIPMENT - FOUR CYLINDER DISTRIBUTOR 
ST1832M 
21. Fit the  drive  dog so that the driving  tongues  are 
parallel  with the rotor  arm electrode  and to the  left 
of its centre  line when  the rotor arm points 
upwards  as shown. 
ST 
22. If a new  shaft  is fitted  it must be drilled  through  the 
hole 
in the  drive  dog using  a 4.76 mm (A) drill. 
23. During  drilling,  push the shaft  from the cam end, 
pressing  the drive  dog and washer  against the body 
shank. 
24.  Secure  the pin in the  drive 
dog by ring-punching 
the  holes. 
If the shaft  is new,  tap the  drive end to 
flatten  the washer  pips and ensure  the correct 
end
-float. 
25. 
Set the  contact  points gap. g- ? 21 
6  
						

							ELECTRONIC IGNITION - V8 ENGINE 186 I 
ELECTRONIC  IGNITION - WITH 35DMS \.I I. .. e, ’ DISTRIBUTOR 
The Lucas model 35DM8 distributor  has a conventional 
advancehetard vacuum unit and centrifugal  automatic 
advance mechanism. 
A pick-up  module,  in conjunction  with a  rotating 
timing  reluctor  inside  the  distributor body, generates 
timing  signals.  These are applied 
to an electronic 
ignition  amplifier  unit  fitted under  the  ignition coil 
mounted 
on top of the  left  front  wing valance. 
Key to illustration 
I: Cap 
2. HT Brush  and spring 
3. Rotorarm 
4. Insulation  cover (Flash shield) 
5. Pick-up and  base  plate  assembly 
6. Vacuum  unit 
7. ‘0’ ring oil seal 
- I. 
RR458M 
7  
						

							1861 ELECTRONIC IGNITION - V8 ENGINE 
DISTRIBUTOR - ELECTRONIC IGNITION - 
V8 ENGINES 35DM8 
Remove and refit 
Removing 
1. Disconnect  battery. 
2.  Disconnect  vacuum 
pipe(s). 
3. Remove  distributor  cap. 
4. Disconnect  low tension lead from  coil. 
5. Mark distributor  body in relation to centre  line of 
rotor arm. 
6. 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. 
7. Release  the  distributor  clamp  and remove 
distributor. 
Refitting 
NOTE: 
If a  new  distributor is being  fitted,  mark body in 
same  reiative  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  the rear. 
LH Left  hand  side of engine, when viewed  from 
the  rear. 
8 
RR616M 
9. If engine  has not been  turned  whilst distributor  has 
been removed, proceed  as follows  (items 
10 to 17). 
10. Fit new 0 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.  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 pipe to distributor  and  low 
tension  lead to coil. 
15. Fit distributor cap. 
16. Reconnect  battery. 
17. Using suitable electronic  equipment,  set  ignition 
timing  as follows. 
18. If,  with  distributor  removed, engine has been 
turned 
it will be  necessary  to carry  out the follwing 
procedure. 
19. Sct engine - No. 1 piston  to static ignition  timing 
figure (see section 
05) on compression  stroke. 
20. 
Turn distributor  drive  until rotor  arm is 
approximately 
30 anti-clockwise  from number one 
sparking 
plug lead  position on cap. 
3-1. 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 fron  cover, 
oil pump  drive is not  engaged.  Engage by lightly 
pressing  down distributor  while turning  engine. 
24. Fit clamp and  bolt leaving  both loose at this  stage. 
25.  Set the timing  statically 
to within 2-3of T.D.C. 
26.  Connect  vacuum 
pipe(s) to distributor. 
27. Fit low  tension  lead to coil. 
28.  Fit  distributor  cap. 
29. Reconnect  battery. 
30. Using suitable electronic  equipment set thc ignition 
timing.  
						

							ELECTRONIC IGNITION - V8 ENGINE 186 I 
1. It is essential that the following  procedures  are 
adhcrcd  to.  Inaccurate  timing  can lead to 
scrious 
engine  damage  and additionally  create failurc to 
comply with the emission  regulations  applying to 
the  country  of destination.  If the  engine  is being 
checkcd in  the  vehicle  and is fitted  with an air 
conditioning  unit the compressor  must be isolated. 
2. On initial  engine  build, or if the distributor  has 
been  disturbed  for  any  reason,  the  ignition timing 
must  be set statically 
to within 2-3 of T.D.C. 
(This sequence  is to 
give only an approximation in 
order  that  the  engine  may be started) ON  NO 
ACCOUNT  MUST  THE ENGINE  BE STARTED 
BEFORE  THIS OPERATION  IS CARRIED OUT. 
Refer  to Engine Tuning Data for ignition  timing 
specification. 
% Equipment  required 
Calibrated  Tachomctcr 
Stroboscopic  lamp 
3. Couple stroboscopic  timing lamp  and  tachometer 
to  engine  following  the 
manufacturcrs instructions. 
4. Disconnect  the vacuum pipes  from thc distributor. 
5. Start  engine;  with no load and not exceeding 
3,000 rpm, run  engine until normal opcrating 
temperature  is reached.  (Thermostat  open). Check 
that  the  normal  idling speed  falls  within  the 
tolerance 
specificd in  table. 
6. Idle  speed  for  timing purposes  must not excccd 
750 rpm, and this speed  should  be achieved  by 
removing  a breather  hose, 
NOT BY ADJUSTING 
CARBURETTER  IDLE SETTING  SCREWS. 
7. With the  distributor  clamping  bolt slackened,  turn 
distributor  until 
the timing flash coincides  with the 
timing pointer  and the  correct  timing mark on the 
rim 
of the torsional  vibration dampcr as shown  in 
the  table. 
8. Retighten  the distributor  clamping bolt securely. 
Rccheck  timing 
in the event that  retightening  has 
disturbed  the distributor  position. 
9. Refit vacuum  pipes. 
10. Disconnect  stroboscopic  timing lamp and 
tachometer from  engine. 
LUCAS CONSTANT ENERGY IGNITION SYSTEM 
35DMS PRELIMINARY CHECKS 
Inspect  battery  cables and  connections  to ensure  they 
are  clean  and tight.  Check  battery state of charge 
if in 
doubt  as to its condition. 
Inspect  all LT  connections 
to ensure that  they are clean 
and  tight.  Check  the HT  leads  arc correctly  positioned 
and  not shorting  to earth  against  any  engine 
components.  The wiring  harness  and individual  cables 
should be  firmly 
fastencd to prevent chafing. 
PICK-UP MODULE  AIR GAP  SETTINGS 
Air gap  settings  vary according to vehicle  application. 
NOTE: The gap  is  set initially  at the  factory  and will 
only  require  adjusting if tampered  with or when  the 
pick
-up  module is replaced. 
Test Notes 
(i) The  ignition  must be switched on for  all chccks. 
(ii) Key  to symbols used  in charts  for Tests 2. 
Correct High Low Reading Rcading Reading 
(iii) 
Use feeler  gauges manufactu.red from  a non- 
magnetic material when  setting air gaps. 
TEST 1: 
Check HT Sparking 
Remove 
coiVdistributor HT  lead from  distributor  cover 
and  hold  approximately 
6 mm (0.25 in) from  the 
engine  block. Switch  the ignition 
on and  operate  the 
starter. 
If  regular  sparking  occurs,  proceed 
to Test 6. If no 
sparking proceed to Test 2. 
Test 1 
RR460M 
Crank engine 8 
9  
						

							lzi ELECTRONIC IGNITION - FAULT DIAGNOSIS 
TEST 2: Test 2 
Amplifier Static Checks 
Switch  the ignition ‘ON’ 
(a)  Connect  voltmeter to points  in the circuit  indicated 
by  the  arrow heads and make  a note  of the  voltage 
readings. 
NOTE: Only  move  the voltmeter  positive lead during 
tests  2,3 and 
4. 
(b) Compare voltages obtained  with the specified 
EXPECTED  READINGS 
1 More than 11.5 volts 
2 1 volt max  below  volts at point 1 in test  circuit 
3 1 volt  max below volts  at point 1 in test  circuit 
4 0 volt -0.1 volt 
(c) If all  readings  are correct proceed  to Test 3. 
(d)  Check incorrect reading(s) with chart  to  identify 
area  of possible  faults, i.e. faults  listed  under 
heading “Suspect”. 
- 
RR461Mv 
values  listed below:- 
- 
TEST 3: 
1 2 3 4 SUSPECT 
L v v v Discharged  battery 
d L L v Ign. switch and/or wiring 
v v L d Coil or amplifier 
v v v H Amplifier  earth 
Check Amplifier  Switching 
Disconnect  the High  Tension  lead between  the coil  and 
distributor. 
Connect  the voltmeter between  battery  positive 
(+ ve) 
terminal  and 
HT coil negative (- ve) terminal:  the 
voltmeter should  register zero volts.  Switch  the ignition 
‘on’  and crank the  engine: the voltmeter reading  should 
increase  just above  zero, in which  case proceed  with 
Test 
5. 
If  there  is no  increase in voltage  during  cranking 
proceed  to Test 
4. 
Test 3 
To ign switch 
RR462M 
10 
TEST 4: 
Pick-up Coil  Resistance.  Applications  with Separate 
Amplifier 
Disconnect  the pick-up leads  at  the harness  connector. 
Connect the  ohmmeter leads to the  two pick
-up leads in 
the plug. 
The  ohmmeter  should register between 
2k and 5k ohms 
if pick-up is satisfactory.  Change the amplifier if 
ohmmeter  reading is correct.  If the  engine  still does  not 
start  carry  out Test 
5. 
Change the  pick-up if ohmmeter reading is incorrect. If 
the engine  still does  not start proceed  to Test 5. 
e: e -5 > 
Test 4 A 
RR463M