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Wing fuel tank leaks at fuel pickup

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08 Mar 2020 12:55 #2627 by Matt Gunsch
Replied by Matt Gunsch on topic Wing fuel tank leaks at fuel pickup
I looked thru 43.13, Cam-18 and the A&P handbooks and cannot find a listed torque for a AN775-5D Bolt, you could always use german torque, which is gootentite, ie tight enough not to leak.

A&P, IA, PPSEL
30+ years GA and Warbird Maint
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08 Mar 2020 07:44 #2626 by Kathy McMurray
Replied by Kathy McMurray on topic Wing fuel tank leaks at fuel pickup
Matt, what is the torque on the fitting? It is an aluminum fitting on an aluminum tank. Thanks.

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07 Mar 2020 11:48 #2624 by Matt Gunsch
Replied by Matt Gunsch on topic Wing fuel tank leaks at fuel pickup
yes, they are crush gaskets and should be replaced, if everything is correct, they will not leak, no sealing compound needed

A&P, IA, PPSEL
30+ years GA and Warbird Maint
Check out the Ercoupe Discussion group on facebook
The following user(s) said Thank You: Kathy McMurray

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07 Mar 2020 09:22 #2622 by Kathy McMurray
Wing fuel tank leaks at fuel pickup was created by Kathy McMurray
Both wing tanks on my 415C developed a seep from the aluminum fitting that attaches to the fuel line at the bottom of the tank. This fitting also holds the tank drain valve and the finger screen. The fittings had aluminum crush washers at both ends and that's where the fuel is seeping out. Are those crush washers correct? Part number? There was a ProSeal-like sealant around the fittings. Is there supposed to be sealant there? In short, how do you install the pickup fittings so they don't leak?
Thanks
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