Surface rust under gas cap

[tmcdavitt]

Does anyone know the best way to remove the rust on the filler neck? I didn't see any pitting worth noting. After I remove the rust - is there a way to keep it from forming again.

Of note: the plane is kept in a hangar year-round in Houston. The caps, to my knowledge, don't leak (I've never found water in the tanks). Also, this is on one side only. The caps seal well.

Thanks.

View attachment ImageUploadedByPiper Forum1475447155.860679.jpgView attachment ImageUploadedByPiper Forum1475447169.719282.jpg

 

[GM.]

 

[JimC]

 

[sanjiv]

 

[tmcdavitt]

 

[GM.]

 

[flyguydon]

 

[Charley]

 

[JimC]

 

[Charley]