A. fuel supply circuit

The I.A.W. 8F.5T system is made up of four interdependent circuits:

A. Fuel supply circuit
B. Air intake circuit
C. Electric/electronic circuit
D. Circuit for checking harmful exhaust emissions

The system also includes devices and circuits associated with the injection-ignition system, which are also designed to reduce harmful vehicle emissions in line with USA '83 standards. These include: fuel evaporation control and vapour recovery circuit; crankcase vapour recirculation and recovery circuit;

A. FUEL SUPPLY CIRCUIT

This consists of the following parts:

1. Reservoir
2. Pump submerged in tank
3. Mesh pre-filter located on pump intake
4. Paper main fuel filter
5. Outlet line

6. Four injectors
7. Fuel pressure regulator
8. Return line with one-way recirculation valve or anti-reflux valve
9. Safety valve (two-way)
10. Inertia safety switch

FUEL FILTER

The filter is fitted along the fuel delivery line. It is made up of an outer case in aluminium and an inner polyurethane mount that supports a paper element with high filtering capacity and surface are of about 1400 cm².