Land Rover Defender Workshop 1993 Rover Manual

ELECTRICAL EQUIPMENT 
ELECTRONIC IGNITION - PRELIMINARY  CHECKS EXPECTED READINGS 
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  are  correctly 
positioned  and  not shorting 
to earth  against  any 
engine  components.  The  wiring  harness  and 
individual  cables  should  be  firmly  fastened  to...

ELECTRICAL EQUIPMENT 
If there is no  increase  in voltage  during cranking 
proceed 
to Test  4.  TEST 
5: 
Coil HT 
Sparking 
Remove  existing coil/distributor  HT lead  and 
fit test 
HT  lead 
to coil  tower.  Using suitable  insulated  pliers, 
hold  free end about 
6 mm  from  the engine  block and 
crank  the engine.  There should  be 
a good HT spark. 
If  weak  or no  sparking, 
fit new  coil,  repeat  test. 
HT  sparking  good, repeat  test with  original  HT lead. 
If  sparking  is good,...

ELECTRICAL EQUIPMENT 
TEST 7: 
Visual and HT Cable  Checks 
Examine:  Should be: 
1. Distributor  Cover  Clean, dry, no tracking 
2. Coil  Top  Clean, dry, no tracking 
3. HT  Cable  Insulation Must not be cracked 
4. HT  Cable  Continuity  Must not be open 
5. Sparking  Plugs  Clean, dry, and set to 
marks 
marks 
chafed 
or perished 
circuit 
correct  gap. 
NOTE: 
1. Reluctor  Must not foul  pick-up 
2. Rotor  and Flash Must not be cracked 
or 
leads 
or 
show signs of 
tracking  marks. 
8 REISSUED:...

ELECTRICAL EQUIPMENT 
ALTERNATOR - TYPE A127  BATTERY 
Remove  and  refit 
Removal  WARNING: During battery removal  or  before 
carrying  out  any repairs  or  maintenance  to 
1. Disconnect battery ground  lead.  electrical  components  always disconnect  the 
2. Disconnect  the electrical  leads from the  battery  negative  lead  first. If the  positive lead is 
alternator.  disconnected with the negative  lead in place, 
3. Slacken  the two  tensioner  nuts and rotate  the  accidental  contact of the...

ELECTRICAL EQUIPMENT 
STARTER MOTOR - Type M78R 
Overhaul 
Dismantling 
1. Remove the  starter  motor.  13.  Withdraw the brushes  and bus bar. 
2.  Remove  the braid  between the  starter and the 
solenoid terminal. 
15. Remove  the yoke. 
3.  Remove  the solenoid  fixing  screws.  16. Remove  the  intermediate bracket. 
4. Withdraw  the solenoid  body.  17.  Loosen and remove  the  through bolts  from the 
5. Lift and  remove  the solenoid  plunger.  drive end bracket. 
6. Remove two nuts and two...

ELECTRICAL EQUIPMENT 
Inspecting 
Solenoid 
Solenoid  plunger removed, ohmmeter  should read 
infinity. 
23.  Check  the  continuity  and resistance  value 
of 
windings  by connecting  an  ohmmeter  as 
shown. 
Solenoid plunger operated by  hand, ohmmeter 
should  read zero. 
If test results  are unsatisfactory,  replace  the 
solenoid. 
If results  are correct  proceed  to 25. 
(a) Resistance  value  should  be: 1.074  ± 0.035 
ohms  25.  Check operation 
of spring for freedom of 
movement. 
Brush gear...

ELECTRICAL EQUIPMENT 
NOTE: Soak new bushes  in engine oil for  thirty 
minutes  before fitting. 
Reassembly 
Armature 
27. Check 
the armature  insulation  using suitable 
test  equipment.  Connect the tester  between 
any  one  commutator  segment and the shaft. 
The  method  illustrated  uses a 110 
V, 15  W  34. Reverse  the instructions  1 to  22.  Smear  the 
test  lamp. 
If the lamp  illuminates  the armature  teeth and operating  collar of the  roller  clutch 
is faulty,  and a replacement...

ELECTRICAL EQUIPMENT 
11 Discard  the light unit,  or release  the spring 
8. Remove  the  three  screws  retaining  the rim  clip  and discard  the  bulb if faulty. 
and  light  unit,  and remove  the rim. 
12. If required,  fit  a new bulb of the  correct 
9. Withdraw  the  light  unit or reflector  and  wattage and secure  with  the  spring clip, or fit 
disconnect  the  electrical connector.  a 
new  light  unit. 
10 Remove the rubber  grommet. 
14. Disconnect the  electrical  leads  from the bullet...

ELECTRICAL EQUIPMENT 
Assemble and refit 27. The  beam  centres  A are  measured 
horizontally  on the  vehicle  and the dimension 
B  vertically  from the ground. 
17. Fit the  rim seating  to the  headlamp  shell with 
the  two  trimmer  screws and coil spring. 
18.  Fit the  rubber  seal to the  headlamp  shell. 
19.  Connect  the leads  to the  bullet  connectors. 
20.  Fit the  headlamp  shell into the front  wing 
locating  the trimmer  screws into the 
two holes 
in the  wing.  Ensure  that the...

ELECTRICAL EQUIPMENT 
SIDE, TAIL AND FLASHER  LAMPS 
Renew  bulbs and lamps  REAR NUMBER PLATE  LAMP 
Remove  and renew  bulbs 
1. Disconnect the  battery. 1. Disconnect the  battery  and remove  the  single 
2.  Remove  the two  screws  and  fibre washers 
and  withdraw  the  lens  and  collect  the 
two 
rubber  washers inside the  lens. 3. Disconnect the electrical  leads. 
screw 
securing the  lamp  cover and lens. 
2. At this stage  the bulbs  only can be renewed. 
3. Push  the bulb  inwards,  twist...