Join Date: Jan 2002
Location: Chapel Hill, NC
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Re: O/T Home Production of BioDiesel
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Haven't seen LoModYJ around here lately, but he's got it set up on his CTD.. Or is in the proccess of doing it now.
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I'm setting up to run my auxillary tank on Waste Vegatable Oil (WVO) which is diffetent from BioDiesel.
A bit of schooling here; A diesel motor will run on just about anything. I take all the used dino oil from the Rav4 and the Jeep (CTD uses synthetic and it don't burn as well) and put in a quart or two with each tank of fuel. With 2 qt to 30 Gallons of fuel it makes no difference in emmisions and does nothing to the fuel consumption...plus it's directly recycling the oil. A diesel will run on any kind of vegatable oil (it was originally designed to run on peanut oil, but in 1900 or so Dino Diesel was cheaper). The big deal with using oil is you need to lower the viscosity. There are currently 2 ways of doing this, one is to "cook" it using Methanol (and a few other things) to make BioDiesel. I don't cook my own but have a bud that is cooking and I buy from him. The other way of lowering the viscosity is to heat the oil. The system I'm putting in my CTD will use the auxillary tank to hold the grease, it will have a 4 "conducter" fuel hose hooked to it, Grease to lift pump, Grease return line, Coolant from motor, Coolant back to motor. Using the coolant as the heat source in those lines should be enough to get the grease up to about 140* and allow the motor to run on it. I will have to start up and shut down on Diesel, as I need the motor to get to operating temp before I can switch over to the Grease. And I shouldn't shut down on the grease as it will cool in the pump and lines to the injectors and become thick again. Plus there is reports of the grease Coking on the injectors, clogging them.
I am getting waste vegatable oil from a couple of resturants in town (Chinese and Japanese are the best), then I will be filtering using household water filters and getting down to 5 microns. I'll have 2 55 gal drums, one stacked above the other,. I will use a solar panel to charge a "stock tank" heater to warm the grease coming from the upper tank and allow it to flow more freely through the filters into the lower tank, then heat again when I need to pump into the truck tank.
With BioDiesel you can use it just like DinoDiesel, no conversion neccessary, I will continue to use it as my start up and shut down fuel. One of the big problems with BioDiesel is it has a lot of (***can't think of what it is right now***) in it, and it eats rubber. Some of the Ford PSD's have lots of rubber o rings. I would suggest getting on some of the BioDiesel web sites (I'll list some later) and checking on your your truck.
I did have to change my fuel filter after each of my first 2 fill ups on BioDiesel. It does a super duper job of cleaning out your fuel system. So have several on hand when you make the switch.
There are lot's of local retailers selling Bio in mix or straight form. B100 is all bio, B50 is 50% bio/50% dino, B20 is 20% bio/80% dino.
I'll get some links up later with more info.