barrynorman(at)comcast.ne
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 Posted: Tue Aug 14, 2012 11:20 am Post subject: Leaking fuel tanks |
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This is an update on the fuel tank issue. After getting the right wing home and filling it with fuel it was obvious it was leaking from the end plate at the top if the wing next to the spar. Once I removed the end plate, I also noticed that the epoxy tank sealer around the flap return spring eyelet had cracked and exposing the spar to fuel in a area about the size of a half dollar. I cleaned that area up and the spar looked fine so I coated the area with polysulfide sealant. I also built a wedge much like the one Jim did for his plane but I did it out of Hysol mixed with some flox that incorporated the fiberglass angle, the spar and the edges of the tank flange. Once it was curred I coated it with polysulfide sealant. The wedge appears to really tie that area where leaks are prone together and greatly reduces flex. After putting the end plate back on it's been filled with fuel for about 2 weeks with no leaks or seepage. Thanks to Jim for the details this fix.
Now I just need to finish repainting this wing and get the other one done.
Barry
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