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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. Dave. UK VW Type 3 & 4 Club http://www.hallvw.clara.co.uk/ ------ ----- Original Message ----- From: "Russ Wolfe" <russw@classicvw.org> To: "Type3" <type3@vwtype3.org> Sent: Friday, May 13, 2005 9:28 PM Subject: Re: [T3] Brake bleeding and other hydraulics > On Fri, 2005-05-13 at 15:05, Constantino Tobio wrote: > > Russ Wolfe wrote: > > > > >Ideally, you would want the system to hold about 15psi for 72 hours. > > >That is one of the specs we have when we build new fuel regulators. > > >It helps for cold start the next morning. > > > > > > > > > > > Would a tired fuel pressure regulator be the cause losing pressure? > > > Hard to say, More likely a fuel pump that is getting worn. > Or injectors that are leaking. > > -- > 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 > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > > >