Fuel System

Engine Trouble

To eliminate engine trouble, it is essential that the fuel is free from water, dirt, or other foreign bodies, i.e., completely clean. Our experience is that polluted fuel causes the greater part of all engine trouble; therefore, we recommend you always filter the fuel when refilling and frequently check the water separator, located on the engine room aft bulkhead.

If the fuel tanks have been half-empty for a longer period, particularly over the winter, condensed water will gather at the tank bottoms.

The condensed water can be removed through drain bolts at the bottom of each tank.

Both tanks feed to the water separator, before which each pipe has a tap. Select the tank here, using one tank at a time.

Glass Bowl Filter = Water Separator / Water Trap Filter

The glass bowl filter should be checked for possible water and dirt, which will show as “pearls” on the bottom. When changing the fuel filter, the paper filter of the water separator should also be replaced.

When draining the bowl, first undo the bleeding nut on top of the bowl. Then open the draining nut at the bottom and drain. Unscrew the center bolt on top of the separator, and the bowl and alloy + paper filter come loose. Change the paper filter (CAV 7111-296) and re-install in reverse order.

Always bleed the engine after a filter change and after draining.

The air heater (Webasto) draws fuel from the port tank. Engine surplus fuel is returned to the other tank, i.e., the starboard tank.

There is no balance pipe between the two tanks; therefore, they must be filled separately.