Engine International HS 2.8L. Manual - part 4

1 9

International HS 2.8L

Operation and Maintenance Recommendations

8120081 - 05/02 - Service Manual

INTERNATIONAL ENGINES

CAMSHAFT BELT

The engine timing pulleys are moved by a flexible
rubber belt, which must be replaced in
predetermined intervals depending on the use
conditions severity.

Follow strictly the specifications of belt tensor
tightening, guaranteeing its useful life, according
the recommendation.

Note:

If the belt is not replaced within the correct intervals, it may present failures, causing
serious damages to the engine.

2 1

International HS 2.8L

Cooling System

8120081 - 05/02 - Service Manual

INTERNATIONAL ENGINES

COOLING SYSTEM

Circuit drainage

If it is necessary to totally drain the coolant water,
follow the instructions below:

Warning:

Do not drain cooling water while
the engine is still hot and the
system pressurized.

1.

Remove lower and upper radiator hoses.

2.

Remove engine block drainage plug M14
(right side of the engine, front view). Make
sure that the drainage hole is not obstructed.

3.

Remove radiator hoses from the engine, and
fan.

4.

Drain all the coolant water from the block.

5.

Check hoses condition and replace them if
they are damaged or deformed.

System filling

1.

Install plug in the block and tighten it within
13 to 17 Nm.

2.

Install all cooling system hoses in the inverse
order of the removal, according to the vehicle
Owner’s Manual.

3.

Check in the Owner’s Manual, the level
(capacity) of the cooling system (engine +
radiator + expansion reservoir - if existent).

Warning:

Never check the water level
immediately after the engine
stop. This may cause burnings.

International HS 2.8L

2 2

Cooling System

INTERNATIONAL ENGINES

4.

Remove cooling system expansion reservoir
cover (tank).

5.

Remove disaeration plug, located in the
upper part of the thermostat housing.

6.

With the engine stopped, fill the system
through expansion reservoir, until liquid leaks
through the disaeration plug (see illustration).

Always using additives diluted in clean water,
keeping the mix proportion (1/3 of addictive,
2/3 of water).

In regions of more intense cold, use 1/2 of
addictive and 1/2 of clean water, free of
residues.

7.

Press radiator upper hose to help the air
elimination and fill the system until only
coolant water leaks free from bubbles
through the thermostat-housing hole.

Recommended additives:

Radiex Química Ltda - Fluid for radiator Radiex.

Mobil Oil do Brasil Ind. e Com. Ltda. - Mobil
Permazone.

Promax Products Máximos S.A. - Bardhal Rad
Cool.

Shell Brasil S.A. - Fluid for radiators

Warning:

Carefully read the instructions
on the product packing before
using it.

Do not add soluble oil to the cooling circuit water,
because it attacks and damages the rubber
hoses.

The above mentioned additives usage is very
important to guarantee the cooling system
efficiency, being the engine operating at low or
high temperatures.

2 3

International HS 2.8L

Cooling System

8120081 - 05/02 - Service Manual

INTERNATIONAL ENGINES

8.

Manually reinstall thermostat housing
disaeration plug, just to seal the liquid outlet
hole.

A. Fill system until reaching the maximum level

of the tank.

B. Tighten expansion reservoir cover and check

for leakages.

C. Run engine at idle speed for 10 seconds and

let the liquid spill through the disaeration plug,
eliminating all air bubbles from the system.

D. Stop engine and tighten the disaeration plug

within 13 to 17 Nm.

E. Run engine at 2000 rpm, approximately

medium acceleration, for five minutes.

F.

Increase speed up to 3500 rpm,
approximately 3/4 of the maximum
acceleration, for four minutes more.

G. Slow down engine speed again to 2000 rpm,

for three minutes more.

H. Check coolant water level in the expansion

reservoir, if necessary complete to the
maximum level.

FAN

Removal

1.

Remove radiator shield.

2.

Using tool nr. 8130632 to lock flywheel, use
tool nr. 8130643 to viscous clutch.

Warning:

To remove the viscous clutch
and fan is necessary to rotate
the fixation nut clockwise.

Reinstallation

1.

Reinstall in inverse order of removal.

2.

Using tool nr. 8130632 to lock flywheel, fix
viscous clutch and fan with the tool nr.
8130643, counter clockwise; tighten nut.