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Land Rover Lesson 2 Auto Trans Coolingine Rover Manual

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Page 331

The fuel tank is manufactured from moulded plastic
which is a minimum of 3 mm thick. The tank is a sealed
unit with the only internal access being via the pump
module flange aperture on the top of the tank.
The flange assembly comprises a pump module flange
which contains all external pipe and electrical
connections for the tank internal components, a collar
and a clamp. The flange is fitted with a seal which
locates in the tank aperture. An arrow on the flange must
be aligned between two moulded lines...

Page 332

Fuel Tank Internal Components
Front right hand Roll Over Valve (ROV)1
Carrier assembly2
Fuel Level Vent Valve (FLVV) breather
corrugated tube
3
Front ROV corrugated tube4
Liquid Vapor Separator (LVS)5
Rear right hand ROV6
Rear left hand ROV7
Fuel pump module8
Rear fuel level sensor9
Tank breather tube10
Connector11
Fuel Level Vent Valve (FLVV)12
Front fuel level sensor13
Front left hand ROV14
Front jet pump15
The 4.4L V8 vent system is identical to the system used
on the 4.0L V6 models. The vent system...

Page 333

The two front ROVs are located in the front of the tank
and are attached to the main beam of the carrier by a
moulded clip. Both ROVs are connected to the LVS
with a plastic corrugated tube.
The four ROVs vent directly into the LVS. Any liquid
fuel is separated from the vapor in the LVS and drains
back into the tank via the FLVV. The LVS is connected
by a corrugated tube to the fuel pump module flange.
This allows fuel vapor to exit the tank during venting.
The main purpose of the FLVV is to control the...

Page 334

follows the same arc as the film resistors. The magnet
pulls the flexible contacts onto the opposite film resistor
contacts forming an electrical circuit.
Sensor Operating Principle
Magnetic foil1
Spacer2
Ceramic surface3
Magnet4
Resistance film5
The film resistors are arranged in a linear arc with
resistance ranging from 51.2 to 992.11 Ohms. The
electrical output signal is output proportional to the
amount of fuel in the tank and the position of the float
arm. The measured resistance is processed by...

Page 335

figure, the regulator opens, decaying the pressure
supplied to the fuel rail by allowing fuel to pass to the
front jet pump. The regulator is required to maintain the
fuel pressure at the optimum pressure for correct fuel
injection.
Swirl Pot
The swirl pot is located at the rear of the fuel tank and
provides for the attachment or location of most of the
fuel pump assembly components.
The swirl pot acts as a fuel reserve, providing a constant
supply of fuel to the fuel pump irrespective of fuel
quantity...

Page 336

FUEL FILLER PIPE ASSEMBLY
Fuel Filler - ROW
Filler cap1
Bracket2
Screw M63
Filler cap lanyard4
Charcoal canister breather hose5
Charcoal canister vent hose to atmosphere6
Charcoal canister (ROW)7
Rear differential breather pipe8
Tank breather pipe9
Clamp - filler hose10
Fuel filler pipe11
Screw M812
Lower mounting bracket to EPB bracket13
(G421196) Technical Training352
Lesson 2 – PowertrainFuel Tank and Lines 

Page 337

Fuel Filler - NAS
Filler cap1
DMTL pump filter2
Screw M63
Bracket4
Filler cap lanyard5
Charcoal canister breather hose6
DMTL pump vent hose to filter7
DMTL pump8
Charcoal canister (NAS)9
Rear differential breather pipe10
Tank breather pipe11
Clamp - filler hose12
Fuel filler pipe13
Screw M814
Lower mounting bracket to EPB bracket15
The fuel filler head is positioned at the rear of the
vehicle, above the right hand rear wheel. The filler head
is covered by a moulded plastic cover which is
electrically...

Page 338

The fuel tank breather pipe has a quick release fitting
and connects to the breather pipe from the fuel tank
flange.
The fuel filler pipe locates in a short flexible hose
attached to the tank and is secured with worm drive
clamps. The canister breather pipe is routed alongside
the fuel filler pipe and attaches to the canister with a
quick release coupling.
A fourth pipe is also routed alongside the fuel filler pipe
and provides air ventilation for the charcoal canister.
On all petrol vehicles, except NAS...

Page 339

Fuel Delivery System Component Location
Filler cap and lanyard1
Rear differential breather pipe2
Fuel pump module assembly3
Fuel tank vent pipe4
Fuel Tank and LinesLesson 2 – Powertrain
355Technical Training (G421197) 

Page 340

Tank breather pipe5
Heat shield6
Cover7
Pipe - Fuel Burning Heater (FBH) pump feed (if
fitted)
8
FBH pump (if fitted)9
Pipe - Pump to filter (fuel feed)10
Pipe - Filter to pump module (fuel return)11
Pipe - Filter to engine (fuel feed)12
Pipe - Engine to fuel cooler (fuel return)13
Pipe - FBH pump to FBH (if fitted)14
Pipe - Fuel cooler to filter (fuel return)15
Pipe - HP pump to fuel cooler (fuel return)16
Fuel cooler17
Fuel filter bracket18
Fuel filter assembly19
Cradle20
Pipe - Fuel pump to filter...
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