Engine International HS 2.8L. Manual - part 6

International HS 2.8L

Fuel System

2 9

8120081 - 05/02 - Service Manual

INTERNATIONAL ENGINES

3.

In periods of intense cold (under 0 ºC)
(32 °F), 20% of aviation kerosene can be
added to the diesel fuel. This procedure will
avoid that the existence of paraffin in the
diesel fuel obstruct the fuel piping. In the
filling, first put the kerosene and then the fuel.

Note:

Only use aviation kerosene in situations when the ambient temperature is under zero.
(0 °C) (32 °F).

Fuel Filter

The filter has the function to retain the impurities
to make that the system receives a clean fuel,
avoiding this way damages in the engine fuel
injection pump and the nozzles.

Note:

Use only genuine filter element.

Filter drainage

Daily, in order to avoid the premature obstruction
of the filter and to guarantee the fuel injection
pump and nozzles durability, it is necessary drain
it before the initial start, according to the Periodic
Maintenance table.

1.

Open filter drainage lateral plug.

2.

Open filter upper plug.

3.

As soon as the fuel flows clean, through the
side plug, close the drain plug.

4.

Close upper plug.

5.

Check for leakages.

International HS 2.8L

Fuel System

3 0

INTERNATIONAL ENGINES

FUEL FILTER ELEMENT

Removal

1.

Loosen filter fuel inlet (1) and outlet (2) pipes
(position pipes to avoid leakages).

2.

Loose fuel filter fixation clamp.

3.

Raise fuel filter and loosen electric
connection of the water-in-fuel sensor.

4.

Remove filter.

5.

Disconnect water-in-fuel sensor.

6.

Discard filter.

Installation

1.

Manually assembly water-in-fuel sensor, until
rubber ring touches the new filter.

2.

Turn sensor 1/3 turn clockwise.

3.

Position filter in the clamp and install water-
in-fuel sensor electric connection 1 and 4.

4.

Support filter in the support and if necessary,
adjust filter to allow better a position of the
pipes.

5.

Install fuel inlet and outlet pipes.

6.

Tighten clamp nut until the clamp touches the
support (to avoid strangle).

Note:

The upper edge of the filter must be pushed against the aluminum support in order to
provide negative, according detail below. In case of non-existence of contact between
the edge of the filter and the support, the sensor will loose action and will not indicate
the water presence in the vehicle panel.

7.

Start engine, wait to speed stabilization (in
idle speed), for 10 seconds.

8.

Check for leakages.

Note:

Manual bleed is unnecessary.

INCORRECT

CORRECT

International HS 2.8L

Fuel System

3 1

8120081 - 05/02 - Service Manual

INTERNATIONAL ENGINES

LACK OF FUEL

1.

Fill fuel tank with 3 liters minimum.

2.

Open fuel filter upper plug and loosen the 4
nozzle nuts.

3.

Crank engine until that fuel drips through the
filter upper plug and through the nozzle nuts
(approximately 10 seconds).

4.

Close plug and tighten the high-pressure pipe
nuts.

5.

Start and wait for 10 seconds to engine
stabilization.

6.

If the engine doesn’t start, repeat the
procedure starting from the item 2.

•

It is recommended to change the fuel filter.

•

Avoid the lack of fuel because it causes
serious damages to the fuel injection
system.

LIFT PUMP

Fuel lift pump has the function of transferring fuel
from fuel tank to fuel injection pump, passing
through the fuel filter.

Removal

1.

Disconnect fuel lift pump inlet and outlet
pipes.

Note:

Close pipes ends and connections to avoid dust penetration.

2.

Loosen fixation bolts and remove pump and
gasket.

International HS 2.8L

Fuel System

3 2

INTERNATIONAL ENGINES

Reinstallation

1.

Clean pump and block contact surfaces.

2.

Install pump in cylinder block with a new
gasket, ensuring of the correct location of the
lever with the camshaft.

3.

Fix with bolts tightening according to
specification.

4.

Connect fuel lift pump inlet and outlet pipes.

BLEEDING

After each one of the operations described next,
crank the engine until the fuel to leave without air
bubbles. Next, close the bleeding point indicated.

1.

Open fuel filter upper plug 1 and loosen the 4
nozzle nuts.

2.

Crank engine until fuel drain through the filter
upper plug and nozzles nut (approximately
10 seconds).

3.

Close plug and tighten high-pressure pipe
nuts.

4.

Start and wait for 10 seconds to engine
stabilization.

FUEL INJECTION PUMP

Removal

1.

Remove fuel injection pump inlet and outlet
pipes.

2.

Remove boost control pipe.

3.

Remove high-pressure pipes set from the
fuel injection pump to the nozzle-holders set.

4.

Remove valves cover.

5.

Turn crankshaft clockwise until that the
valves of the cylinder nr. 4 swings (cylinder
nr. 1 piston at TDC in compression stroke).

Note:

Position contact key in start.