‘34 Spark confusion

[tubman]

I've always had better luck with cork sediment bowl gaskets, even though the neoprene ones should be better according to all of my senses. One thing I do is to sand the glass bowl on wet or dry paper on my "Surface Plate" (A 2" thick chunk of granite that is ground perfectly flat) to make sure there are no imperfections in the mounting surface. This solved a vexing long term fuel problem for me about 15 years ago.