REFLECTOR: Fuel Leak Techniques?

Joe Ewen jewen at comporium.net
Sat Feb 10 19:45:13 CST 2007


Craig,

1 possibilty is that the leak opens up when the wing is loaded.  You might want to jack the AC near the wing tips, to simulate loading in flight.  Then repeat your leak checking techniques.

Joe
  ----- Original Message ----- 
  From: Craig and Denise Woolston 
  To: 'Velocity Aircraft Owners and Builders list' 
  Sent: Saturday, February 10, 2007 7:08 PM
  Subject: REFLECTOR: Fuel Leak Techniques?


  Okay collective wisdom of the reflector, John and I are at our wits end.  We can't seem to fix a fuel leak in one of our tanks.  Wanted to solicit any other techniques we haven't thought of yet.  What's been particularly tough about this leak is that it doesn't appear to leak on the ground; only after flying will it show a stain streak.  It also is such a small leak that it will hold air pressure day after day with no appreciable leak down.  The other very odd trait is where the leak stain shows up and that is just above the landing gear where it comes out of the fuselage.  This is a fix gear XL if you don't remember, that passed leak checks years ago, flew at least 15 hours before this showed up and now we just can't seem to nail this down.

   

  Thanks in advance,

   

  Craig

  XL-5FG Flying in Palmdale,CA



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