Tight fuel caps

Joined
Mar 21, 2019
Messages
6
#1
My ‘02 GCAA’s fuel caps are ridiculously tight - sometimes you need a strap wrench. I’ve tried DC4 and oil as a lube (very light coats), but they don’t last more than a few cycles. The Citabria I flew in the past was not anywhere this tight, but it was a ‘73. Any suggestions? Different gasket? Adjust the tangs on the cap?
TIA!
 

Bartman

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Staff member
Joined
Mar 27, 2018
Messages
678
Location
New Jersey, USA
#2
How long have you had the plane? Is it possible that there are two gaskets in the cap from a previous owner that wanted them super tight?
They are supposed to be air tight so there should be some tightness to them but not so much that it would require a strap wrench :eek:
 
Joined
Mar 21, 2019
Messages
6
#3
Good point. We’ve only had the plane for a few months. I’ll check to make sure someone didn’t double-up the gaskets. I don’t think that is the case - I’m pretty sure I would have noticed - but I’ll check and report back.
 
Joined
Mar 21, 2019
Messages
6
#7
MA Cantin,
That may be my next move. The caps are in perfect shape (always hangared, < 700 hours), but are obviously 17 years old and may have aged the gasket too much. The gaskets don't seem stiff, but I'll replace them, too.