IC2.5 Fuel System Location Requirements

IC2.5.1 All parts of the fuel storage and supply system must lie within the surface defined by the top of the

roll bar and the outside edge of the four tires. (See Figure 13).

IC2.5.2 All fuel tanks must be shielded from side or rear impact collisions. Any fuel tank which is located outside the Side Impact Structure required by T3.25 or T3.34 must be shielded by structure built to T3.3, or T3.34.

IC2.5.3 A firewall must be incorporated to separate the fuel tank from the driver, per Rule B4.5.

IC2.6 Fuel Tank Filler Neck & Sight Tube

IC2.6.1 All fuel tanks must have a filler neck:

(a) at least 38 mm (1.5 inches) diameter,

(b) at least 125 mm (4.9 inches) vertical height and

(c) angled at no more than forty-five degrees (45°) from the vertical.

IC2.6.2 The 125 mm of vertical height must be above the top level of the tank, and must be accompanied by a clear fuel resistant sight tube for reading the fuel level. (Figure 14)

IC2.6.3 The sight tube must have at least 75 mm (3 inches) of vertical height and a minimum inside diameter of 6 mm (0.25 inches).

IC2.6.4 The sight tube must not run below the top surface of the fuel tank.

IC2.6.5 A clear filler tube may be used as a sight tube, subject to approval by the Rules Committee or technical inspectors at the event.

IC2.6.6 Fuel Level Line - A permanent, non-moveable fuel level line must be located between 12.7 mm and

25.4 mm (0.5 inch and 1 inch) below the top of the sight tube. This line will be used as the fill line for the Tilt Test (Rule C9.9), and before and after the Endurance Test to measure the amount of fuel used

during the Endurance Event.

IC2.6.7 The sight tube and fuel level line must be clearly visible to an individual filling the tank.

Дата добавления: 2015-07-10