Land Rover Defender 90 110 Workshop 1984 Rover Manual

V8 CYLINDER ENGINE (12) 
-^ TEST AND FIT THERMOSTAT .I .... :: 
1. Remove the two  bolts  securing  the thermostat 
2. Remove  the housing  gasket. 
3. Withdraw the thermostat. 
housing 
to the  induction  manifold. 
ST858M 
ST856M  
8. Clean the induction  manifold and thermostat 
9. Fit the  thermostat  with the jiggle  pin uppermost at 
10. Fit  the  housing  using a new gasket,  and evenly 
housing 
mating faces. 
12 oclock. 
tighten  the two  bolts. 
. .. ,: ... .. .. .. . 
4. Note  the temperature...

1121 V8 CYLINDER ENGINE 
4. Fit distributor to engine  and check  that centre  line 
of  rotor  arm 
is now in line  with  number  one 
sparking  plug lead in cap.  Reposition  distributor 
if 
nccessary. The vacuum  capsule should be at 90” to 
the  camshaft. 
5. If distributor does not  seat  correctly in front  cover, 
oil pump  drive is not  engaged.  Engage by lightly 
pressing  down distributor  while turning  engine. 
6. Fit clamp and bolt  leaving  both loose  at this  stage. 
7. Rotate...

V8 CYLINDER ENGINE 
FIT ENGINE OIL FILTER .,: 2 .;$., I. . .;:$ :U, 1. Clean  oil pump  mating  face with  filter. 
2. Smear  clean engine  oil on the  rubber  washer  of the 
new  filter. 
3. Fill the filter  with new oil as far  as possible,  noting 
the  angle  at which 
the filter  is to  be  fitted. 
4. Screw on the filter  until the sealing  ring touches  the 
oil pump cover face, then tighten it a further  half 
turn  by hand  only. 
Do not overtighten. 
- *... ,: I.. I -:..: .,. ... ,., .. .. ....

V8 CYLINDER ENGINE 
3 
ST855M 
FIT EXHAUST  MANIFOLD  AND AIR RAILS 
1. Ensure  that  the  mating surfaces  of the  cylinder 
head  and  exhaust manifold  are clean  and smooth 
and coat  the faces  with ‘Foliac 
J 166’ or ‘Moly  Paul’ 
anti
-seize  compound.  ‘Foiiac J 166’ is 
manufactured  by Rocol  Ltd., Rocol 
House, 
Swillington,  Leeds, England. 
‘Moly  Paul’ is manufactured  by 
K.S. Paul Products 
Ltd.,  Nobel  Road,  London 
N18. 
2. Place the manifold  in position  on the cylinder  head 
and...

_... ,, .. . 
. ::.; . _. . r 2::. .+:

12 I FAULT DIAGNOSIS 
SYMPTOM 
BURNED VALVES 
NOISY  VALVE  MECHANISM 
NOISE  FROM HYDRAULIC  TAPPETS 
1. Rapping noise only when  engine is started 
2. Intermittent rapping  noise 3. Noise on idle and  low speed 
4.  General  noise at all speeds 
- V8 ENGINE ONLY 
5. Loud  noise at normal  operating 
MAIN  BEARING  RATTLE 
temperature 
only 
LOW 
011. PRESSURE 
WARNING  LIGHT REMAINS 
ON, ENGINE  RUNNING 
RATTLE  IN LUBRICATION  SYSTEM  ~ 
ENGINE 
OVERHEATING  ~~  ~ 
MECHANICAL NOISES Medium 
low pitch...

FAULT DIAGNOSIS 
POSSIIILE CAUSE 
1. Lack of fucl 
2.  Stop  solenoid  faulty 
3. Wrong starting  procedure 
4. Air in fucl  system 5. Fucl inlct restriction 6. Fuel  contamination 
7. Low cranking spccd 
8. Starting  aid ineffective 9. Injcction timing  incorrect 10. Timing bclt slipped 
1 I. Bxk Icakagc restricted 
12. 
Fucl circuit  incorrect I 
SYMPTOM 
CHECK 
Fuel level in tank 
Audible opcration when switched - Check 
electrical  supply, replace solenoid 
Starting  procedure  correct 
-Throttle...

1211 FAULT DIAGNOSIS 
SYMPTOM 
IRREGULAR IDLE 
INSUFFICIENT  MAXIMUM SPEED 
ERRATIC  RUNNING  OR SURGING 
EXCESSIVE  SMOKE 
EXCESSIVE  NOISE 
LACK  OF 
POWF,R 
EXCESSIVE  FUEL CONSUMPTlON 
3TALLING  ~~ 
3LOW ENGINE DIE DOWN 
ZNGINE WILL 
NOTSHUTOFF  ~ 
SXCESSNE KNOCKING (DETONATION) 
, POSSIBLE CAUSE 
Any of the 
following  items: 4,5,6,9,11, 12,13, 14, 16, 17.  Plus: 
18. HP pipe  restriction 19. Idlingspeed incorrect 
20.  Anti-stall  setting  incorrect 
21.  Manual 
idle advance  faulty 22....

PETROL FUEL SYSTEM 119 
c OVERHAUL FUEL LIFT PUMP 
DISMANTLE 5. Turn,  whilst pressing  down the metal  part of the 
diaphragm  through 
90 in  either  direction  and 
withdraw 
the diaphragm  and spring. 
6. Unstake the oil seal  housing  and lever-out the oil 
scal  and retainer.  ~ 
x2 
1. Remove 
the sediment  bowl, where  fitted,  and 
collect  the filter  gauze and  sealing washer. 
2. Mark the upper  and lower  halves  of pump  casing to 
ensure correct alignment 
on reassembly. 
3. Remove  top...

PETROL FUEL SYSTEM 
14. 
15. 
16. 
17. 
18. 
19. 
20. ~~  ~~ 
Inspect 29. Fit the 
filter  gauze  and sealing  ring on pumps with a 
sediment  bowl and fit the bowl  and secure with the 
retaining  clip. Ensure  that the bowl  and seal  are 
located  squarely. 
Do not overtighten  securing nut 
to prevent cracking  the bowl. 
Clean 
all parts in paraffin 
(Kerosene)  and examine 
for  wear  and renew  as necessary  including all 
gaskets 
. 
Sediment  bowl filter  disc must  be free of damage 
and 
fit...