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On Tue, 2002-05-21 at 18:55, Drake wrote: > > I assume dirt capacity is proportional to paper area. Is this right? I've > seen > > them entirely FILLED with mud on the inlet side. You probably have, too. > > Definitely....I have been working with suppliers for chemical filters, and > have leaned more than I have ever wanted to about filters in the last week > or so. In this case a filters lifetime would be affected by filter area, > flow through the filter, and amount of "crap" in the fuel. > Our customers spec. the filter by the square inches of material, and the porosity. How we get it in there is our problem. From the original T-3 FI filters that I cut open years ago, modern domestic filters have at least twice as much surface area. -- Russ Wolfe '66 FB MT (It drove) '71 FB AT '65 Bug (not running) russw@classicvw.org http://www.classicvw.org ------------------------------------------------------------------- Unsubscribe? mailto:type3-request@vwtype3.org, Subject: unsubscribe