---------------------------------------------------------- Engines-List Digest Archive --- Total Messages Posted Fri 11/06/09: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:50 PM - Air in fuel lines. (DEAN PSIROPOULOS) ________________________________ Message 1 _____________________________________ Time: 07:50:48 PM PST US From: "DEAN PSIROPOULOS" Subject: Engines-List: Air in fuel lines. Hi all: Been having a lot of trouble with a rough idle problem on my Fuel Injected 0-360 parallel valve engine. I've been going through several tests trying to locate the source of the problem but so far no joy. One suggestion that I have received concerns air getting into the fuel lines. It seems a little far fetched that air could get in through a fitting that is not leaking fuel but I'm running out of ideas so I'll go through and tighten all my fittings to see if that helps. But, that leaves one other possibility and that's air getting in through the fuel selector valve. I'm using the Van's fuel selector that came with my RV-6 kit. It sat in its little brown bag on the shelf in my shop for several years before it got used but seems to working fine. It's not hard to move the selector and its not leaking, at least externally. Anyone experience leaking of this valve or any issue with that might let air into the fuel lines through it? Any ideas on how I might test the valve to see if it's leaking air into the system? I'm using the Van's high pressure pump setup that puts the pump ahead of the selector valve so there will be some suction at the valve. I'm running out of ideas and thinking about switching to a carb. Hate to do that but can't find anything wrong after working on it for the last year, maddening. Thanks. Dean Psiropoulos RV-6A N197DM ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message engines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Engines-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/engines-list Browse Digests http://www.matronics.com/digest/engines-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.