Iveco DAILY M.Y. 2012, Body Builder Instructions

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CHASSIS MODIFICATIONS D
AILY
Base — 02/2012 Printed 603.95.241
Changes to the air intake and engine exhaust systems
Changes to the air intake and engine exhaust systems
2.9 Changes to the air intake and engine exhaust systems
2.9.1 Intake
The characteristics of the engine supply air intake systems and exhaust systems must not be made without IVECO authorisation.
Any operations must not change the original intake vacuum values and the exhaust counter-pressure values.
Table 2.17 - Maximum permitted counter-pressure at the intake and exhaust at nominal speed and at full load
Engine Engine code
Counter-pressure at
the exhaust (kPa)
Minimum-maximum
counter-pressure at the intake (kPa)
.11 F1AE3481A*A 34.5 1- 9
.13 F1AE3481B*A 37 1- 9
.15 F1AE3481C*A 37 1- 9
.15 F1CE3481J*B 48 1- 9
.17 F1CE3481K*B 57 1- 9
.21 F1CE3481D*B 57 1- 9
.15 EEV F1CE34818*C 40 1- 9
.17 EEV F1CE3481C*C 40 1- 9
.14G F1CE0441A*B 25
∆
P = 2
The air intake must be positioned to prevent the intake of hot air from the engine compartment or dusty air or water.
The intake compartment must be completely airtight and provided with rubber gaskets that prevent the recirculation of hot air. The
gaskets must be of a quality that is able to support a constant temperature of 100 ºC with short periods of 120 ºC without becoming
deformed. The compartment must keep the air passage section effective over the entire path.
Any openings that have to be made in the van bodies must have a useful area no less than approx. twice that of the master section
of the pipe upstream of the filter; these openings (example grid holes) must have a minimum dimension to prevent them from being
blocked.
Not permitted:
- changing or replacing the original air filter with a filter with an inferior capacity;
- making changes to the body of the silencer;
- carrying out work on devices (injection pump, regulator, injectors, etc.) that could change the proper operation of the engine
and have an impact on exhaust gas emissions.
Finally, it must be checked if the system requires a new homologation based on particular national standards (noise, smoke).
2.9.2 Engine exhaust
The pipes must:
- be arranged as regularly as possible;
- create curves with angles no greater than 90 ˚ and radiuses no smaller than 2.5 times the external diameter;
- not have any constrictions;
- have useful passage sections no smaller than the original ones.
For obvious reasons of safety, sufficient distance must be maintained between the exhaust pipe and the electrical systems; the plastic
pipes, the spare wheel (minimum 150 mm), the plastic fuel tank (minimum 100 mm), etc.
Lower values (e.g. 80 mm) can be permitted by adopting suitable sheet metal guards, whereas additional reductions require the use
of thermal insulation or the replacement of plastic pipes with steel ones.