---------------------------------------------------------- RV10-List Digest Archive --- Total Messages Posted Thu 01/07/16: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:59 AM - Re: Airflow ES Fuel Pump (Kelly McMullen) ________________________________ Message 1 _____________________________________ Time: 06:59:07 AM PST US From: Kelly McMullen Subject: Re: RV10-List: Airflow ES Fuel Pump To close the loop, after I verified I had the right pressure sensor, I called Airflow Performance, since I suspected the relief valve all along. They told me how to take apart the valve (didn't look like it came apart). Since I did not want to try that operation in the tunnel, I removed the pump from the tunnel (sure glad I installed side access panel). Took apart the valve, tapped the body on the bench, and all the inards came out. Didn't see crude, but cleaned everything anyway. Gave a light coating of triflow to keep parts from sticking until fuel got flowing. Got everything reinstalled, checked all the flare nuts for torque, then turned fuel back on, held my breath, and turned on boost pump. Voila, steady 26-27 psi, everything working fine. I surmise that the fact I bought my fuel pump and filter from another builder who was headed in different direction, and they sat for 3 yrs after that, the moving parts just lodged with spring pressure inside the valve and needed to be feed up. The main two pieces of information I got from Airflow is that the valve comes apart with 2 ea 13/16 wrenches, and to NOT remove valve from the pump as that connection is likely to gall in reassembly. Thanks for the various suggestions,. Moving on..... Kelly -sent from the microchip implanted in my forearm On Sun, Jan 3, 2016 at 2:01 PM, Kelly McMullen wrote: > Well, I tested my system for leaks today. > The boost pump brought the pressure right up, past 25, past 35, beyond the > 40 max scale I had set on the EFIS. > So turned it right off. Could bleed pressure down into readable range by > cracking mixture. Let it hold for an hour at 25, no problem. With that I > believe the system is leak-free. > However, it would appear that the relief valve return of fuel to the > system intake is not working. > Has anyone else seen this? Do I need a new relief valve from Airflow? I > gather there is no servicing the relief valve. > Kelly > -sent from the microchip implanted in my forearm > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv10-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV10-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv10-list Browse Digests http://www.matronics.com/digest/rv10-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.