pilot1950 Posted March 9, 2017 Report Share Posted March 9, 2017 Have a 2008 CTLS. Gas leaks only when fuel valve is open. Only found when I did not close the valve after flying and next day found small puddle under plane. It drips out of the small hole in the fuselage just behind firewall. There is no leak in the engine compartment. I can only assume leak at connection at fuel valve. Looks like I have to pull the switch panel out to get to it. Is there much slack in the wires to pull it out very far? Thoughts, suggestions? Link to comment Share on other sites More sharing options...
Anticept Posted March 9, 2017 Report Share Posted March 9, 2017 There's plenty of wire. Take out the bottom control panel and look back there. It's probably going to be the fuel valve. Link to comment Share on other sites More sharing options...
Roger Lee Posted March 9, 2017 Report Share Posted March 9, 2017 Could be a hose fitting, bad hose or around the fuel filter. Should be easy to locate and fix. Link to comment Share on other sites More sharing options...
FlyingMonkey Posted March 9, 2017 Report Share Posted March 9, 2017 If it's the fitting down at the firewall, it's a b*tch to get to (ask me how I know), but you can. You might have to pull all three instrument panels. If it's leaking at the valve that is pretty easy. The filter in the stock location is harder than the valve but easier than the firewall. Link to comment Share on other sites More sharing options...
pilot1950 Posted March 10, 2017 Author Report Share Posted March 10, 2017 Thanks guys. Really good info. Here's hoping for easy fix. Hope to get a chance to look at it this weekend. Link to comment Share on other sites More sharing options...
Tip Posted March 10, 2017 Report Share Posted March 10, 2017 My guess is that it's a loose clamp. Link to comment Share on other sites More sharing options...
678Papa Posted March 10, 2017 Report Share Posted March 10, 2017 My first Flight Design was a 2005 FDSW. At around 600 hours it developed a small fuel leak that appeared to be coming from below the center panel and would run down the panel next to the pilot's right leg, After a couple attempts to find the source, we discovered the leak was in a fitting on the engine side of the firewall and was then running down through the protective hose surrounding the fuel line and back into the cabin and dumping out by the fuel valve. Link to comment Share on other sites More sharing options...
Tom Baker Posted March 10, 2017 Report Share Posted March 10, 2017 Pull the left instrument panel as well as the switch panel. That will give to all the access that you will need. If it is the stock set up after the valve you will have the metal fuel filter, and then the fuel flow transducer. These are connected by short hoses and clamps. Any of those hose connections, or the fuel filter could leak. I don't know if the fuel flow transducer has a failure mode where it can leak. Link to comment Share on other sites More sharing options...
pilot1950 Posted March 12, 2017 Author Report Share Posted March 12, 2017 Found leak where connection screws into back side of fuel valve. Disassembled, cleaned, redoped threads. looking good so far. Link to comment Share on other sites More sharing options...
FlyingMonkey Posted March 12, 2017 Report Share Posted March 12, 2017 Found leak where connection screws into back side of fuel valve. Disassembled, cleaned, redoped threads. looking good so far. Link to comment Share on other sites More sharing options...
Anticept Posted March 13, 2017 Report Share Posted March 13, 2017 Mine had this issue too. '08 as well. Exact same symptoms. Figured I'd have you check there first! Link to comment Share on other sites More sharing options...
WmInce Posted March 13, 2017 Report Share Posted March 13, 2017 Found leak where connection screws into back side of fuel valve. Disassembled, cleaned, redoped threads. looking good so far. Good job . . . well done! Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.