I am getting ready to run my 25KW Onan with a 1981 Perkins 4Cyl. ($4.236 engine)on WVO.on Traile w/Enclosure.
I got a centrifuge for Dewater & Cleaning the Oil.
I got 2 Brass 3 way valves to manually change from Bio Diesel (Start up/ Shut down) to WVO one for fuel intake line and one for the return line.
I got a 55 Gal steel drum with a submergable heater w/Thermostat I can get the WVO over 200F if needed.
Ambient Temp here in central Florida in Summer 90 - 98 F.

1. How hot does the WVO have to be in the Tank/Drum? The oil will only travel about 6 Ft to the Filter at the engine from there 3 more Ft to IP.
What kind of fuel pump should I get to pump the hot WVO to the engine?
Any other suggestions? I never ran WVO therefore I have no expirience.
I have been making my Bio Diesel for the past year and messed up som batches in the beginning so I know Bio D by now.

Any help is appreciated.

Thank you
Armand

06 GMC 6.6 Duramax on Bio
87 MB 300D Turbo on Bio

Armand,

When your WVO thickens at 40F and below, it will need to get heated to about 75F or more to "unwax." Except for your drying passes, I wouldn't regularly heat the WVO tank except to keep it from falling below 60F overnight. Do you have coolant or electric heat exchange anywhere between the tank and IP?

Also, are you fueling with 100% WVO? Sorry, I am unfamiliar with the Perkins four cylinder - is it direct or indirect injection? You might consider talking to the rep or dealer you bought it from. Try and find out what the density and delivery specs are for the pump.

My 25kW generator runs @ 1800rpm and I change the oil pretty regularly when I fuel with WVO. Mine is an Isuzu DI, so I don't fuel 100% VO.

I presume it is fairly humid where you live? Do you have any trouble with "fuel fungus" - the algae crud - showing up in your filters living in Florida?

Aloha!

why don't you just put a T in the fuel line to use engine pump. Just close for diesel and open for wvo. You would actually need 2 T's. One to shut off the diesel and keep wvo from getting into the diesel line and the other to feed wvo to the engine, thats what I did with my detroit diesel 2-71

this generator will run http://video.google.co.uk/videoplay?docid=5643280893635983135&hl=en-GB ,lister petter engine ,on 100% cleaned oil but when you run it for a while 3HRS it will fail. It doese not damage the engine but it just grinds to a halt after a while YOU CAN CLEAN IT OUT AND START IT AGAIN.The good thing about older simpler engines are that you can flush the system out quite easly and to be honest oil never hurt an engine.BUT !!! I tried 50/50 diesel/veg in my ford transit!! DONT DO IT £250 SCRAP!! IT IS NOT SO EASY TO FLUSH OUT A TRANSIT OR MODERN ENGINE!!OIL IS RUNNING OUT AND EVEN IF YOU CAN GET THIS TO WORK IT IS ONLY A SHORT FIX..DONT WASTE YOUR TIME GROWW POTATOES!!

the Perkins 4-236 is a great engine, it is direct injection, and uses the CAV rotary pump, which may be the only weak link in the setup, it seems that you should make sure that the oil is heated to at least 160-190*F before it ever reaches the CAV, look the pump and filter system over and make logical design changes, small insulated fuel lines from heater to pump, the engine is a good unit as long as its maintained properly.engine would probably run for 10yrs, steady, at only 1800 revs. OH YES!! make sure that injection pump has a govenor compatable for a GEN-SET adjusted to 1800rpm. if the pump was on anything else but a gen. plan to spend some $$.


Thx Ron