With many removals and installations of the cowl, the mounting holes will be
chewed up and elongated over time.
Hysoling stainless tinnerman washers to the cowl after final fit (but prior
to painting) would prevent that. Has anyone ever tried it? The question is
whether Hysol will stick to the back of the washers. Would wirebrushing
stainless washers enhance the ability of Hysol to stick to them?

Bill Rumburg
N403WR