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Land Rover Defender 90 110 Workshop Book 2 Rover

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Page 151

PETROL FUEL SYSTEM 
TUNE AND ADdUST 
The following  instructions  apply to both carburetters 
unless  otherwise  stated. 
Before  commencing  the following  instructions,  remove 
the  air cleaner,  air intake  elbows,  mixture  adjustment 
screw  plug and mixture  screw cap. 
CARDURETTERBALANCE 
Using balancer 605330 
1. Disconnect  the interconnecting link between  the 
two  carburetters. 
Fit the balancer to the 
carburetter  intakes and ensure  that there  are no air 
leaks, 
if necessary,  zero the...

Page 152

PETROL FUEL SYSTEM 
7. Without  altering the position  of the  balancer 
control,  place 
the balancer on the  second 
carburetter  intake  ahd  adjust  the idle screw  as 
necessary  to 
achicve the same  reading. 
. 
8. Alternatively,  adjust  and check  the balance of both 
carburetters  until  an idle speed 
of 700 to 
800 rev/min is obtained. 
9. Reconnect  the  throttle inter-connecting  link,  and 
again  check 
the idle spced and balance. 
Mixture  setting 
10. Ensure  that  the engine  is still...

Page 153

PETROL FUEL SYSTEM 1191 
_,-

Page 154

19 PETROL FUEL SYSTEM 
SYMPTOM 
DIFFICULT STARTING WHEN COLD 
IIFFICULTSTARTING WHEN HOT 
ACK OF ENGINE  POWER 
:RRATIC SLOW-RUNNING  OR iTALLING ON DECELERATION 
:XCESSIVE FUEL CONSUMPTION 
V8 ENGINE CARBURETTER 
FAULT DIAGNOSIS 
POSSIBLE CAUSE 
Insufficient  choke action 
Fast  idle adjustment  incorrect 
Float  chamber 
level too IOW 
Carburetter llooding 
No fuel  supply to carburetter 
Choke  sticking  on 
Blocked  air cleaner 
Float  chamber  level 
too high 
No oil in damper or oil too thin 
Air...

Page 155

PETROL FUEL SYSTEM El 
LAND ROVER 110 TWIN  TANK  INSTALLATION 
Description 
The  fuel system  includes two  fuel tanks,  one at the rear 
of the vehicle  and an  additional  fifteen  gallon 
(68,20 litres) capacity tank on the right-hand  side of the 
vehicle.  Both tanks  contain 
an electrically  operated 
submerged  fuel pump 
in addition  to  a fuel  level 
indicator  unit in each  tank.  An ignition  controlled 
switch 
on the control  panel enables  the driver to select 
the  tank  to be  used....

Page 156


				            

Page 157

PETROL FUEL SYSTEM 119 
. 
VAPOUR SEPARATOR 
A. Vapour separator 
B. Spill  return to side tank 
C. Restrictor  and spill  return  to solenoid  valve 
D. Outlet from separator to carburetter 
SPILL RETURN  SOLENOID VALVE 
A. Solenoid valve 
B. Spill  return to side tank 
C.  Spill  return  to rear  tank 
D. To carburetter  via filter and vapour  separator 
NON-RETURN VALVE 
A. Non-return valve 
B. Spring 
C. 
Ball 
We 8 ST1844M 
FUEL PUMP 
A. Pump  and motor 
B. Filter 
C. Gasket 
D. Electrical...

Page 158

PETROL FUEL SYSTEM 
LAND ROVER 110 TWIN TANK FUEL SYSTEM 
I 
28 ::  

Page 159

PETROL FUEL SYSTEM E[ 
LAND ROVER 110 TWIN TANK FUEL SYSTEM 
KEY TO FUEL LINE INSTALLATION 
1. In-tank  fuel pump- rear  tank. 
2. In-tank  fuel pump -side tank. 
3. Fuel  gauge  tank unit -rear tank. 
4. Fuel  gauge  tank unit -side tank. 
5. Spill return solcnoid. 
6. Fuel  filter. 
7. Fuel  supply  pipe - rear tank  to filter  via T-piccc. 
8. Pipe,  filter to vapour scparator. 
9. Vapour  separator. 
10. Vapour separator  outlet to carburetter. 
1 1. Spill return  pipe to fuel  tank  via restrictor...

Page 160

1191 PETROL FUEL SYSTEM 
LAND ROVER 110 BASIC FUEL SYSTEM 
1. In-tank fuel pump. 
2. Fuel gauge tank  unit. 
3. Fuel supply  pipe to filter via connector. 
4. Fuel filter. 
5. Fuel supply pipe filter  to vapour separator 
6. Vapour separator. 
7. Vapour separator,  outlet to carburetter. 
8. Spill  return  pipe to fuel  tank  via restrictor. 
9. Fuel  filler. 
10. Breather  hose. 
11. Restrictor. 
12. Fuel tank drain  plug. 
f. f  
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