So it was doubled and tapped, eh? All that's left are a couple of puckered holes the size of a quarter. Oh yeah, and an additional hole about that size that some knucklehead drilled through below the seat to put a bolt and nut in there. No sealant - no wonder the cockpit always smelled like exhaust.

Nash - I have the feeling every fix I do is an 'unauthorized' repair.

Is JB strong enough to support the exhaust in tension? If I made up a drilled and tapped bottom-side plate to cover the holes could I 'glue' it on with JB? I've never used the stuff.