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</o:shapelayout></xml><![endif]--></head><body lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D'>Dear Richard<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>The caustic soda is disintegrated in the process of being used. It is not left over in the way that a catalyst is. Soap is ‘full of caustic soda’ and may be pH neutral.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>Poor man’s diesel will have a lot of different chain lengths, basically. The snipping is accidental so the biodiesel chop everything up and distil / filter the fractions they want and chuck the rest.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>In answer to an earlier question about timing, the treatment is heat the raw material to about 80 C for a few hours with some caustic soda mixed into it. It can be done in batches.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>The 1-lung Lister (Model 6-1) gives 6 HP at 650 RPM and can burn some pretty rotten stuff. It probably needs more filtering than actual care in preparation (to protect the injector pump).<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>There was a 500 RPM engine developed at ITDG that would run on just about anything including such strange liquids and even coal dust!<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>For those confused by the 8 HP Lister/copy, it is the same engine running at 850 RPM with heavier flywheels. One HP per 100 RPM after the first 50. I have successfully run one at under 150 RPM! Heh heh.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>Regards<br>Crispin<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'><o:p> </o:p></span></p><p class=MsoNormal>Darren , <o:p></o:p></p><p class=MsoNormal>Yes ( on the heatin and filtering of used veggie oil), but….<o:p></o:p></p><p class=MsoNormal>Beneath that general understanding it gets a lot more complicated…Heat and filtration works in a 1985 mercedes. but is really problematic in the newer tdi's .. someone mentions use of caustic to reduce the free fatty acid content.. a poor mans biodiesel or ? How is it pllied and removed or do you remove it?<o:p></o:p></p><p class=MsoNormal>Point is , the heat of course can come from the radiator with a line-within-line, or a wrapped line system but that does not reduce the free fatty acid content --and the issue being the acid which pits the injectors and can rot out ordinary rubber hoses. <o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal> We will be seeking out the slower running, near bulletproof, single lung Lister type thumper for the conversion: Its relatively easy to the conversion: The question is; what is happening 6 months down the road ..We need to crack that nut before recommending it to our friends up in the usambaras and we are going to be there in one weeks time- <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Anyone out there with experience on that tissue ?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Richard Stanley<o:p></o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-CA'><o:p> </o:p></span></p></div></body></html>