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On Sun, 2006-02-19 at 13:05, Constantino Tobio wrote: > Ok, I just tested the fuel system for leaks. It took a VERY long time to > get fuel in all the lines- I hadn't yet done the pushbutton fuel pump > prime trick, so I must have cycled the key about 50 times. The system > pressurizes nicely to 25+ PSI (my wife's not around right now to eyeball > the pressure gauge for me), and then drops to 18-19, stays there a > little while, and drops further a bit more slowly. 30 minutes have > elapsed since I stopped, and we're down to 14 lbs. If you are getting 18-19psi after the pump shuts off, that is correct. That is the "cracking pressure" of the regulator. The pressure where the seat completely closes. And if it held at 14psi for 30 minutes, that means the pump check valve is working pretty good. The seat in our regulator is brass on steel, if I remember right. The modern regulators are a rubber seat washer on stainless steel. http://classicvw.org/gallery/main.php?g2_view=core.ShowItem&g2_itemId=3989 That is the cross section of a modern regulator. -- 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 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~