Iveco EuroCargo (12 to 26 t). Manual — part 34

70519

Figure 19/1

HOLSET TURBOSUPERCHARGER

542418

TURBOSUPERCHARGER
ACTUATOR

Check and adjustment

The actuator (2) check is carried out as described for
GARRETT turbosupercharger assembled on 4-cylinder
engines.

Adjustment is carried out by operating on tie rod (1).

Supercharging pressure: 1.5 bars.

(WASTEGATE) actuator opening start: 1600 rpm.

Figure 20

85487

TURBOSUPERCHARGER

Borg Warner Turbo Systems K27.2

Fitted on engines
F4 AE 0681 E
F4 AE 0681 D

E

URO

C

ARGO

T

ECTOR

12-26 t

ENGINE F4 AE 0681

137

Base - February 2003

Turbosupercharger

70518

Figure 21

Incoming air

Hot compressed air

Cooled compressed air

Exhaust

E

URO

C

ARGO

T

ECTOR

12-26 t

ENGINE F4 AE 0681

139

Base - February 2003

70729

Figure 22

FOREWORD

A good diagnosis is carried out above all with electronic diagnostic instruments (Modus/IWT/IT200) developed by Iveco.
When a vehicle enters the workshop, information provided by vehicle driver are kept under right consideration, but the first
thing to do is connecting Modus/IWT/IT2000 and carefully performing a complete diagnosis.
-

failure memory reading

-

parameters reading

-

engine test

-

etc.

It is useful to print the results, especially in case the Help Desk assistance has to be requested.

Diagnosis through instruments

MODUS
Computerised diagnostic station aimed to provide a diagnosis for braking systems, pneumatic suspensions,
electronically-controlled engines and systems.
The station is equipped with auxiliary functions such as electronic control units programming, spare parts catalogue searching,
time schedules, etc.
The vehicle is equipped with the “30-pole” diagnosis socket placed aside the U.C.I.

IWT
The IVECO WIRING TESTER expands and integrates MODUS.
This instrument has been implemented by IVECO to improve vehicle electric and electronic systems diagnosis.
The vehicle is equipped with the “30-pole” diagnosis socket placed aside the U.C.I., therefore it is necessary to use cable “4”.

IT2000
IT2000 is a diagnostic instrument of all Electronic Systems for IVECO vehicles.
It allows an immediate intervention on the vehicle recognising it from its chassis number.
It stores the results of performed diagnostic interventions.
It can be used also as portable Personal Computer and is preset for the remote diagnosis.
By using MODUS as mother station, it is possible to update and configure the IT2000.
IT2000 is interfaced with the vehicle through a 30-pole diagnosis socket placed aside the UCI.

ENGINE

143

E

URO

C

ARGO

T

ECTOR

12-26 t

Main engine operating anomalies:

1 -

The engine does not start;

2 -

The engine is excessively heated;

3 -

The engine lacks efficiency;

4 -

The engine has black or dark grey smokes;

5 -

The engine has grey smokes (tending to white);

6 -

The engine has cerulean smokes;

7 -

The engine has anomalous rattles;

8 -

The engine stops;

9 -

Excessive or insufficient oil pressure;

10 - Excessive fuel consumption.

1

NO

YES

THE ENGINE DOES NOT START

NO

YES

NO

YES

NO

YES

NO

YES

NO

Efficient connections to battery terminals

Clean, check, tighten terminal nuts, or replace them.

Efficient batteries.

Carry out the checks described in ”Electric system”
Repair Manual.

Efficient starter.

Carry out the checks described in ”Electric system”
Repair Manual.

Absence of air seepages in the low-pressure supply
circuit.

Remove seepage causes.
Perform the drain.

Absence of water traces in the supply circuit.

Remove seepage causes.
Clean the supply circuit including the tank.

Efficient fuel prefilter - filter.

Replace.

(continued)

ENGINE

145

E

URO

C

ARGO

T

ECTOR

12-26 t

DIAGNOSTICS