SAFARI

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12
4 PL FUEL SYSTEM
FUEL FILTER :
The fuel filter is locatedunder the body near the fuel tank
along the pipe carrying the fuel to fuel rail as shown
Fig 14, It is made up of an outer case and an integral
mount that holds a filter element with high filtering
filters the fuel beingdeliver under pressure by
the fuel pump.This is essential for ensuring fuel injection
operation since the injector is extremely sensitive to
foreign particles in the supply circuit. Since it cannot be
disassembled, it must be replaced as an assembly at the
recommended intervals.
Inspection :
1. Check fuel filter as per following procedure.
a) Release the fuel system pressure as mentioned
above for‘Removal of tank’
b) Disconnect negative battery terminal.
c) Jack up the vehicle / hoist the vehicle.
d) Install pressuregaugehaving a rangeof 0-10bar
at the delivery port of T connector.
e) Connect negative battery terminal.
f ) Connect fuel pump connectors.
g) Turn ignition switch‘ON’- run engine idle.
h) Measure fuel pressure on gauge it should be 3.5
bar.
l If it is not, replace filter and retest.
l If it is OK assemble fuel filter.
Removal :
1. Ref. Procedure as mentioned above from (a) to (c).
2. Place fuel container under fuel filter.
3. Disconnect inlet and outlet fuel lines fromfuel filter.
Collect fuel emerging during the operation in
suitable container.
Caution :
A small amount of fuel may be released after fuel hose is
disconnected.Toavoid the chanceof accident,cover hose
and pipe disconnectedwith a shop cloth.
Assembly :
1. Assemble filter.The arrowstampedon theouter case
of the filter indicates the fuel flow direction.
2. Tighten the filter clamping screws to tightening
torque 0.8 - 1.0 kgm.
3. Connect inlet hose, outlet hose to filter. Ensure that
quick fix couplings are fitted properly.
4. Connect negative battery terminal.
5. With engine‘OFF’condition and ignition switch‘ON’
check for fuel leakage.
6. Start engine and check each joint of exhaust system
for leakage. Rectify if necessary.
Fig. 14