I have a PA-18 style sight gauge in the Pa-11 for my one 18 gallon tank.
I am replacing the fuel lines and was also going to clean up the sight gauge assembly.
But the little locking bushing nut that holds the glass tube inside was torqued down by Godzilla and it will not budge. Plus it looks like somebody used some sort of sealant in the threads.
the old gaskets in there look all beat to heck and there is a chunk of gasket inside the tube that is rattling around...
I was just going to order a whole new assembly, but the price was a big surprise.
I have it soaking in Hoppes gun solvent overnight..