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On Fri, 2005-05-13 at 16:57, Dave Hall wrote: > I've had a story from a club member who said his fuel hose was allowiing air in, > which was making the FI car difficult to get started each day. He could do it > with the key on and off technique, but usually they don't need that done each > day, at least not in our climate. He tracked it down with a pressure gauge he > inserted in the joints as it was bugging him so much. He proved the non-return > valve in the pump was working OK, and replaced the gauge further down the line > until he found the problem. Hoses can sometimes become sufficiently porous to > leak air in before leaking fuel out. I've an article somewhere in a back > newsletter; I'll try to look it out. > We have determined at work, that a 10cc/min@90psi air leak, will not leak gasoline. This is one of the industry standards for checking fuel system components. -- Russ Wolfe '71 FB AT '66 FB MT '64 T34 (not running) '65 T1 (not running) '05 KIA Sorento SUV russw@classicvw.org http://www.classicvw.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~