Fuel Tank and Lines
Fuel Tank and Lines
COMPONENT LOCATION
OVERVIEW
The 70 liter saddle-type fuel tank is located below the rear seat and astride the driveshaft.
The fuel tank is manufactured using the latest six-layer laminated blow-molding technology providing both high mechanical strength and complete emissions integrity. The fuel filler neck is produced from aluminum to balance high-strength with low-weight. In the event of an accident damaging the filler neck, an inlet check valve in the tank's filler stub prevents fuel escaping.
A single pump supplies the engine's fuel demands while also supplying the fuel to power the venturi. The rapid flow of fuel through the venturi nozzle creates a depression which draws fuel back across the saddle into the pump side of the tank.
The fuel gage senders are sealed units which use magnetic actuation in place of electrical contacts; this prevents the problem of chemical contamination of electrical components.
To meet on-board refueling vapor recovery (ORVR) requirements, the fuel tank and associated components are designed to minimize fuel vapor loss during refueling. This is achieved by preventing fuel vapor from the fuel tank venting directly to the atmosphere. Instead fuel vapor is directed into the evaporative emission (EVAP) canister where it is stored before being purged at intervals to the engine's intake manifold. For additional information, refer to Evaporative Emissions Description and Operation
Roll Over Valve (ROV)
The ROV is connected via pipes to a liquid vapor separator. The separator is connected via a pipe to the tank breather outlet in the pump module flange. The ROV contains a non-return valve, which closes in the event of the vehicle overturning, preventing liquid fuel escaping from the tank via the breather pipe.