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Subject: Re: [T3] Rust in my gas tank {:-( > On 25 Jun 2001, at 17:03, Russ Wolfe wrote: > > > There is also a screen in the bottom of the tank. I think it is about > > 60 microns. The best thing, is to get the tank cleaned. > > > The one filter at the gas tank is all you really need. Any others are > > redundant. Most fuel filters are made with 30 micron (30 millionths of > > an inch) filter paper. If the one at the tank does not stop it, the > > ones you have on the engine are not going to either. If the one at the > > tank plugs, the car is going to stop anyway. > > Russ, I was really surprised to hear you say this. I would have > thought that the holes in the woven screen would be much larger > than the pores in the paper. I always thought of these as coarse > and fine filters, even though I had no idea of how coarse and how > fine they might be. > > How sure are you about the fineness of the screen? If you had one > of these screens could you measure it some way? > Yes, I got that wrong. You caught me. What I was trying to say, is the that the screen in the tank is about twice as course as the paper in the filter. Yes, If I could convince the gal in the quality lab to test it for me, we could find out exactly what the capacity is. That is one of her jobs, testing filter dirt capacity periodically. Russ Wolfe russw@classicvw.org http://www.classicvw.org/ ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org