Fuel Filter: Testing and Inspection

DESCRIPTION

The fuel filter was designed for improved high altitude operation and for better re-start after the fuel tank has been completely emptied. The water drain plug and water in fuel (WIF) sensor are located on the top of the filter. Water is drained by using the in-tank electric fuel pump to generate flow (attach a hose to the drain plug). The filter has a pressure differential of 200-300 mbar (2.9 psi.) when new. When dirty, the pressure differential rises to 800 mbar (11.6 psi.).