Thanks.? I couldn't see how it would be other than a metal backer but I've been surprised before.? Is it helpful to run a tap down the threads to clean out any sealant that may be there?? Or is that an additional stripping risk?
Good videos on leak testing.? Moving that to the top of my "To Do" list.??
In "The Sunfish Owner's Manual", there are a number of references to online links in blue.? Is there any index of these links online anywhere?? I can key in the URLs but the hyperlinks remain a mystery.
James Lovegren