Still not brave enough to take down chin cover yet. So in the mean time we're off to
Shipshawanna Indiana (home of the giant flee circus..... I mean flee market) While were down there we're going to go on a plant tour at Keystone. I will be asking a lot of questions about this problem that a few of us are having. I hope to take a few pics. of an unassembled unit on the assembly line to show what is up inside and how to assemble chin cover. If I can get pics I will post them from CG. Thanks for all your help, I shall be back with some answers.
P.S. Poppy I saw your tank issue on another site, I hope you get things resolved.