Hässelby Stockholm 2009-05-19

Since I have had some problem with fungus in the diesel tank, blocking the inlet to the Racor supply diesel filter (there is one more 20 micron diesel filter, located on the actual engine) I decided to install an electrical diesel pump (Holley 110 GPH Blue diesel Pump 12-802-1) between the diesel tank and the Racor supply diesel filter. My intention is that the diesel pump will continously push the diesel through the Racor supply filter, eliminating the risk of being blocket by the fungus, the fungus is a "brownish tooth paste like" product, created in the vegetabilic oil (RME) added to "enviromental friendly" diesel.

This Holley diesel pump will create a circulation of diesel in parallell to the return system that all injection engines already have, and therefore cleaning tha tank and at the same time making sure the filters and tubes are not blocket because of the fungus.

So, these are the items connected in series in my diesel system:
The diesel Tank - the Holley Electric diesel Pump - the Racor Supply Filter (20 Micron) - The engine mechanical feeder diesel pump - The engine filter (20 Micron) - from here he diesel is routed either to the Engine High Pressure Pump or back to the diesel Tank (the over capacity diesel is routed back).

Another big benefit with this new Diesel Pump is that I will never have any problem bleeding the system whenever I have opened the system or just run out of diesel.

A risk is of course that the engine will stall due to a diesel pump malfunction (this is now elliminated by the installation of a check valve a cross the diesel pump).

I have now installet three check valves and one shut-off valve in the by-pass line, se drawing.

2009-12-06

This picture shows the Diesel Pump with the Pump By-Pass Function, used when engine uses self suction.

Here is a better picture of the new installation, notice the mounting shock absorbers..

2009-12-06

2005-01-08

And the new diesel connection for the heater. Notice the diesel Shut of Valve.