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(http://forums.vwvortex.com/zerothread?id=3347405 ) To paraphrase that linked post, my wastegate is in need of repair. I think a steel washer over the nub then peened would work.

Here is a similar fix. http://www.passatworld.com/forums/showthread.php?t=202265&highlight=peened He drilled through the flap and threaded it.

I think just forcing a nut on there could work.

Should I get stainless or regular? Nut or washer? , and can my friend with a welder just put a dot on the edge of the nub to keep the washer/nut on? or can I peen over the old stainless nub - is stainless malleable?

TIA
 

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If you EGTs are exceeding 1400-1600 degrees F, your engine is probably gonna blow up. Find some locking nuts w/ thread deformation (not the nylon type) and you should be fine. Vibration is the biggest enemy here.
 
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