Fuel system upgrades to make biodiesel/WVO compatible?

[ccondon99]

I have an ’87 F250 6.9l with Banks turbo. Want to convert to run 100% WVO and/or biodiesel blend out of front tank and looking for guidance on all the changes I should make to fuel delivery and return system. If people have suggestions for parts/manufactures and ballpark costs too, that’d be great. Already in process of:

· Replace mechanical lift pump with facet duralift to be mounted after tank switch vale on frame
· Bypass water separator and use racor combined filter and water separator

Looking for guidance on the rest, including:

Heating:
· Additional inline fuel heating: necessary and where in line and any recommendation on what to use?
· In tank fuel heater: Eletrice or coolant based? Thermostat?
Fuel line and seals
· Fuel and return lines – material, brand?
· Seals – injector return line cap o-rings?, IP seals? Any other seals (tank selector valve)?
Filtration
· Any additional in-line filtration? # of stages, micron, parts, location (frame, engine bay)

Thanks in advance for the advice.

[leongriffin]

Sounds like you are on the right track.
For sure, I would add at least a heated pickup in the tank. The amount of additional heat really depends on where you live and what it takes to keep the fuel fluid so that you can get it to the engine. If you are following the basic rules of running when the engine is hot; you don't NEED a whole bunch of extra fuel system heat.

I would run a coolant heated pick up at the tank. Run the coolant lines and fuel lines together and (if necessary) insulate them together.

I use viton wherever possible, it cost more but ends the compatibility issues.

If you are interested in documenting your conversion for the benefit of the community, I have just put up a Wiki to collaborate on various WVO conversions
WVO Designs Wiki

Leon
WVO Designs