Kevin too Posted November 29, 2021 Report Share Posted November 29, 2021 Any thoughts on how to make your fuel cap into a locking fuel cap? Thanks, Kevin Quote Link to comment Share on other sites More sharing options...
Andy95W Posted November 30, 2021 Report Share Posted November 30, 2021 Here ya go. Check out the Aero-Locks. http://www.aerotriminc.com/id2.html http://www.aerotriminc.com/sitebuildercontent/sitebuilderfiles/aerosealinfo.pdf Quote Link to comment Share on other sites More sharing options...
MikeOH Posted November 30, 2021 Report Share Posted November 30, 2021 Not to come across rude, but is this really a problem? I'd be thinking twice about having my plane at airport where fuel theft goes on...not too tough to break in and steal avionics if the neighborhood is that bad! Just sayin' 2 Quote Link to comment Share on other sites More sharing options...
Kevin too Posted November 30, 2021 Author Report Share Posted November 30, 2021 It's not theft that's my concern, it's contamination. I've only been getting fuel from the airport fuel farm, if my tanks check out ok then I can't eliminate if it's the fuel farm unless I can secure the caps. Quote Link to comment Share on other sites More sharing options...
Kevin too Posted November 30, 2021 Author Report Share Posted November 30, 2021 1 hour ago, Andy95W said: Here ya go. Check out the Aero-Locks. http://www.aerotriminc.com/id2.html http://www.aerotriminc.com/sitebuildercontent/sitebuilderfiles/aerosealinfo.pdf perfect, thank-you so much! 1 hour ago, Andy95W said: Quote Link to comment Share on other sites More sharing options...
RobertGary1 Posted November 30, 2021 Report Share Posted November 30, 2021 6 hours ago, Kevin too said: It's not theft that's my concern, it's contamination. I've only been getting fuel from the airport fuel farm, if my tanks check out ok then I can't eliminate if it's the fuel farm unless I can secure the caps. Meaning you suspect someone had”s tampered with your fuel?? Quote Link to comment Share on other sites More sharing options...
1964-M20E Posted November 30, 2021 Report Share Posted November 30, 2021 11 hours ago, Kevin too said: It's not theft that's my concern, it's contamination. I've only been getting fuel from the airport fuel farm, if my tanks check out ok then I can't eliminate if it's the fuel farm unless I can secure the caps. Mine stays in my hangar. I still sump the tanks and verify levels during pre-flight. Habit I guess but I do. 1 Quote Link to comment Share on other sites More sharing options...
Hank Posted November 30, 2021 Report Share Posted November 30, 2021 6 hours ago, 1964-M20E said: Mine stays in my hangar. I still sump the tanks and verify levels during pre-flight. Habit I guess but I do. Me, too. Since 2007 . . . . Quote Link to comment Share on other sites More sharing options...
201er Posted November 30, 2021 Report Share Posted November 30, 2021 6 hours ago, 1964-M20E said: Mine stays in my hangar. I still sump the tanks and verify levels during pre-flight. Habit I guess but I do. Besides a good habit, what if flakes of tank sealant or other junk worked their way loose while sitting? Not a bad idea to let them come out. Maybe condensation can accumulate from inside? Once water is submerged under fuel, it is unable to ever evaporate? Quote Link to comment Share on other sites More sharing options...
EricJ Posted November 30, 2021 Report Share Posted November 30, 2021 6 hours ago, 1964-M20E said: Mine stays in my hangar. I still sump the tanks and verify levels during pre-flight. Habit I guess but I do. I do as well. I usually fill it before putting it away, so I sump test before the next flight to try to catch any water that the fuel vendor may have sold me. I check levels to see whether I got any new leaks or not, and smell it to make sure it's the good quality stuff, (e.g., not turbine oil). It's not a bad habit to be in, for sure. Quote Link to comment Share on other sites More sharing options...
RobertGary1 Posted November 30, 2021 Report Share Posted November 30, 2021 27 minutes ago, 201er said: Besides a good habit, what if flakes of tank sealant or other junk worked their way loose while sitting? Not a bad idea to let them come out. Maybe condensation can accumulate from inside? Once water is submerged under fuel, it is unable to ever evaporate? Wouldn’t think it would evaporate but the amount of water that fuel just normally suspends is dependent on temperature. All fuel contains some amount of water. Quote Link to comment Share on other sites More sharing options...
jaylw314 Posted November 30, 2021 Report Share Posted November 30, 2021 (edited) 13 hours ago, 201er said: Besides a good habit, what if flakes of tank sealant or other junk worked their way loose while sitting? Not a bad idea to let them come out. Maybe condensation can accumulate from inside? Once water is submerged under fuel, it is unable to ever evaporate? I did some back-of-napkin calculations a while back and a tank of fuel will actually DISSOLVE about half a tablespoon of water in a full tank at room temperature and up to a full half a tablespoon of water in cold weather, so there COULD be some condensation, but it would be a trivial amount. Of course, that doesn't account for how much water gasoline could SUSPEND, and I couldn't find a good reference for that Edit: Struck by the dyslexia bug! Edited December 1, 2021 by jaylw314 Quote Link to comment Share on other sites More sharing options...
Utah20Gflyer Posted November 30, 2021 Report Share Posted November 30, 2021 19 hours ago, Kevin too said: It's not theft that's my concern, it's contamination. I've only been getting fuel from the airport fuel farm, if my tanks check out ok then I can't eliminate if it's the fuel farm unless I can secure the caps. I think what you really want is a new set of O rings for your gas caps. The lock doesn't keep the water out, good o rings do. 3 Quote Link to comment Share on other sites More sharing options...
mooniac15u Posted November 30, 2021 Report Share Posted November 30, 2021 25 minutes ago, jaylw314 said: I did some back-of-napkin calculations a while back and a tank of fuel will actually DISSOLVE about half a tablespoon of water in a full tank at room temperature and up to a full tablespoon of water in cold weather, so there COULD be some condensation, but it would be a trivial amount. Of course, that doesn't account for how much water gasoline could SUSPEND, and I couldn't find a good reference for that Solubility generally increases with temperature. Less water should dissolve in avgas in cold weather. 1 Quote Link to comment Share on other sites More sharing options...
jaylw314 Posted November 30, 2021 Report Share Posted November 30, 2021 (edited) 47 minutes ago, mooniac15u said: Solubility generally increases with temperature. Less water should dissolve in avgas in cold weather. That only happens in a world where I have dyslexia Yes, I worded that backwards! Edited November 30, 2021 by jaylw314 Quote Link to comment Share on other sites More sharing options...
MikeOH Posted December 1, 2021 Report Share Posted December 1, 2021 3 hours ago, jaylw314 said: That only happens in a world where I have dyslexia Yes, I worded that backwards! LOL! Maybe fix your post so that future readers aren't misled...though damage from a 1/2 tablespoon error is unlikely 1 1 Quote Link to comment Share on other sites More sharing options...
Stnelson903 Posted December 9, 2021 Report Share Posted December 9, 2021 It's not theft that's my concern, it's contamination. I've only been getting fuel from the airport fuel farm, if my tanks check out ok then I can't eliminate if it's the fuel farm unless I can secure the caps.Are you thinking someone is tampering with your fuel or do you think water is “leaking” in when it rains? If it’s the later, try new o-rings. If it’s the former, someone wants you dead. Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
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