ARIA

ENGINE

131

G. FUEL FILLER CAP

The fuel filler cap used ARIA is a dual vented fuel

filler cap. In addition to its function of providing an

opening to fill fuel to the fuel tank it also helps in

maintaining pressure in the fuel tank. It has a dual

pressure valve that functions as follows:

1. When the pressure in the fuel tank increases be-

yond the specified limit of 10.5 KPa ~ 13.3 KPa it

opens to release the vapour to the outside to re-

lieve the pressure.

2. If a vacuum pressure of -6.0kPa is created in the

tank, it opens up such that outside air is allowed

in to bring back the pressure to safe limits.

In addition a ratchet tightening device ensures that

the filler cap is tightened to the correct torque. It also

fitted with a O-ring that has to inspected regularly

and replaced if it has hardened, broken or cracked.

TANK UNIT

1. Fuel Supply connector

2. Fuel Return connector

3. To Tank Pressure Valve

4. Fuel Level Sensor

5. Float

6. Electrical Connector

7. Roll over Valve

PIN OUT

PIN NO DESCRIPTION

A and D Not Connected

Sensor Ground

Fuel level sensor out