Buly, the vent blockage would make scense if the two pumps were on different tanks, but if on the same tank both pumps should show the same symptoms, sounds more like a suction side blockage or a pump.
(an other 2 cents worth)
Georges & Gail Boucher
2126 Creighton Valley Road
Lumby, British Columbia
Canada V0E 2G1
Phone:(250) 547-6434
Fax:: (250-547-2342
-------Original Message-------
Date: 03/21/05 05:15:12
Subject: [FlyRotary] Re: Fuel pump question
John, it sounds like you have a partial blockage somewhere. Either on the intake or or the output side, since the pressure comes up after leaving it OFF for a while. Some people had simmilar simptoms with blocked vent line. The pump will build up vacuum to the point that it can not be overcome. After shutting the pump for a while, the pressure equalizes and the pump is able to work normal again.
Buly
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