O.K. Here is the induction gasket install.
I cleaned and re-oriented the internal duct which fell out of place...
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I also cleaned the old glue off the flange, and installed it.
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I installed the same Ace part number 40198 ($2) beveled side up, using contact cement....
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Here is a view from the inside with the panel in place...
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Gasket problem solved! Thanks all!!