Re: [Biofuel] Injector pumps Jetta TDI
Hi Ken I have been mostly a lurker in this group but lost interest when it became a political group rather than a DIY on biofuel. Well, that didn't happen. I'm not trying to be argumentative, but there's MUCH less politics (whatever that might be) now than there was when the group was at it's height, between 2001 and about 2009. I could easily prove that, but I'm sure there's no need. We said, quite a number of times, that politics is in the eye of the beholder, and it usually means stuff I don't agree with. Never mind - what happened was that by 2009 the list had covered the ground as far as DIY biofuels is concerned. Good job, well done. What would it be about DIY biofuels that you won't find in the list archives (http://www.mail-archive.com/sustainablelorgbiofuel@lists.sustainablelists.org/), or at the Journey to Forever website's Biofuels section, or, even better, in JtF's two books on biofuels, Make your own ethanol fuel (http://journeytoforever.org/ethanol_still.html) and The Biodiesel BIble (http://journeytoforever.org/biodieselbible.html)? Anyway, most of the the posts now are about biofuels or energy issues. (Thanks Darryl!) I like the content of the posts but there is just too much to read. Anyhow I have a technical question. Previously I had read disputes about whether biodiesel or SVO could be used in a Jetta. I bought my Jetta with the expressed desire to use biofuel but it because difficult because most of the sources of vegetable oil dried up so I just wound up using regular diesel. There are solutions to that. Anyway recently my injector pump broke and needed to be replaced. My repair guy said that he could not find a used or reliable reman pump because the veggie crowd is buying them all up because they are ruining them and having to replace them too often. I would like to hear comments on this. Is there any truth to this. No offence mesnt, but there are a couple of sad truths about SVO users, or many of them. First is that, though biodiesel is much better fuel, a very common reason for taking the SVO route instead of biodiesel is that people are afraid of titration. They often say it's all those dreadful poisonous chemicals they're afraid of, but usually it's because they don't want to learn titration (and as we know, the chemicals are perfectly safe when you know how). So they get an SVO kit (usually a half-assed kit), LOTS of filters, and use SVO - blithely unaware that you have to titrate the SVO anyway. If it titrates at more than 2.5 ml of 0.1% NaOH solution it's no good for SVO. This is spelled out loud and clear at the JtF SVO page (http://journeytoforever.org/biodiesel_svo.html). But they think filtering it will solve the problem. It won't. And hence, methinks, the run on ruined fuel pumps. All best Keith After about a month my repair guy managed to find a used one in North Carolina. Ken ___ Sustainablelorgbiofuel mailing list Sustainablelorgbiofuel@lists.sustainablelists.org http://lists.eruditium.org/cgi-bin/mailman/listinfo/sustainablelorgbiofuel
Re: [Biofuel] Injector pumps Jetta TDI
Hello all, this alerts an alarm in my backbone. I suppose that we are talking about a pump of distributor type here ? Well, these pumps are certainly sensitive to viscosity and even more to abresive metal salts , Always present in SVO. These two concerns are covering the facts that the Jetta runs well on (washed) biodiesel. For using SVO as a fuel I would recommend a motor with a different pump design, similar to those of W123-124 Mercedes-Benz. These pumps are not very tolerating of metal salts, but at least they should last longer than the distribution pumps.but the best way is to make sure that the SVO are pre-treated in terms of contaminations, even as in small amounts. On Wed, 29 Jan 2014 19:11:43 -0700, Zeke Yewdall zyewd...@gmail.com wrote: What year of TDI? We ran a '99 TDI on biodiesel for a long time with no issues. I'm not sure that I'd run SVO on the TDI pumps, but biodiesel should not be an issue. I've found that many diesel mechanics have what could best be called an allergic reaction to biodiesel, and blame it for all sorts of engine problems. One blamed SVO for an old mercedes being slow claiming that it had ruined the car... and it was only properly heated 180degree SVO in this particular one too. I suspect that it was having a non turbo 65 horsepower engine in a 3500lb car at 9,000 feet elevation that made it slow, myself. I do know that some injector pumps are not particularly strong (I've heard that the lucas ones are on this list, but not sure of others), and could be affected by a fuel with higher viscosity. So, perhaps... but I had not heard issues with the early TDI's before. I have heard that the PD TDI's may have issues with polymerization, depending on the iodine number of the biodiesel. Zeke On Wed, Jan 29, 2014 at 2:49 PM, Ken Riznyk kenriz...@yahoo.com wrote: I have been mostly a lurker in this group but lost interest when it became a political group rather than a DIY on biofuel. I like the content of the posts but there is just too much to read. Anyhow I have a technical question. Previously I had read disputes about whether biodiesel or SVO could be used in a Jetta. I bought my Jetta with the expressed desire to use biofuel but it because difficult because most of the sources of vegetable oil dried up so I just wound up using regular diesel. Anyway recently my injector pump broke and needed to be replaced. My repair guy said that he could not find a used or reliable reman pump because the veggie crowd is buying them all up because they are ruining them and having to replace them too often. I would like to hear comments on this. Is there any truth to this. After about a month my repair guy managed to find a used one in North Carolina. Ken ___ Sustainablelorgbiofuel mailing list Sustainablelorgbiofuel@lists.sustainablelists.org http://lists.eruditium.org/cgi-bin/mailman/listinfo/sustainablelorgbiofuel ___ Sustainablelorgbiofuel mailing list Sustainablelorgbiofuel@lists.sustainablelists.org http://lists.eruditium.org/cgi-bin/mailman/listinfo/sustainablelorgbiofuel ___ Sustainablelorgbiofuel mailing list Sustainablelorgbiofuel@lists.sustainablelists.org http://lists.eruditium.org/cgi-bin/mailman/listinfo/sustainablelorgbiofuel
Re: [Biofuel] Injector pumps Jetta TDI
What year of TDI? We ran a '99 TDI on biodiesel for a long time with no issues. I'm not sure that I'd run SVO on the TDI pumps, but biodiesel should not be an issue. I've found that many diesel mechanics have what could best be called an allergic reaction to biodiesel, and blame it for all sorts of engine problems. One blamed SVO for an old mercedes being slow claiming that it had ruined the car... and it was only properly heated 180degree SVO in this particular one too. I suspect that it was having a non turbo 65 horsepower engine in a 3500lb car at 9,000 feet elevation that made it slow, myself. I do know that some injector pumps are not particularly strong (I've heard that the lucas ones are on this list, but not sure of others), and could be affected by a fuel with higher viscosity. So, perhaps... but I had not heard issues with the early TDI's before. I have heard that the PD TDI's may have issues with polymerization, depending on the iodine number of the biodiesel. Zeke On Wed, Jan 29, 2014 at 2:49 PM, Ken Riznyk kenriz...@yahoo.com wrote: I have been mostly a lurker in this group but lost interest when it became a political group rather than a DIY on biofuel. I like the content of the posts but there is just too much to read. Anyhow I have a technical question. Previously I had read disputes about whether biodiesel or SVO could be used in a Jetta. I bought my Jetta with the expressed desire to use biofuel but it because difficult because most of the sources of vegetable oil dried up so I just wound up using regular diesel. Anyway recently my injector pump broke and needed to be replaced. My repair guy said that he could not find a used or reliable reman pump because the veggie crowd is buying them all up because they are ruining them and having to replace them too often. I would like to hear comments on this. Is there any truth to this. After about a month my repair guy managed to find a used one in North Carolina. Ken ___ Sustainablelorgbiofuel mailing list Sustainablelorgbiofuel@lists.sustainablelists.org http://lists.eruditium.org/cgi-bin/mailman/listinfo/sustainablelorgbiofuel ___ Sustainablelorgbiofuel mailing list Sustainablelorgbiofuel@lists.sustainablelists.org http://lists.eruditium.org/cgi-bin/mailman/listinfo/sustainablelorgbiofuel
