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Old 12-19-2003, 11:39 PM
Posts: n/a
It wasn't on a Mercedes but I successfully used JB Weld to fix a crack in the exhaust manifold of a Ford truck. I cleaned surface with a dremel to clear the rust away first.

Maybe you can put JB Weld on threaded plug and fill area around it. To put 3/4 inch of JB without plug is a bit much. The plug is likely to burnout if it is only epoxy.
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