[quote=FurryStump]You could look into Belzona super metal 1001. VERY expensive, but is the best epoxy out there. $290 a kilo. They repair shaft keyways with it. I used it to seal hole in intake port. Stands up the best to alchol in pump gas [/quote
Crown Metals Royal 44-30 Mig wire is not cheap either, ($85 for 2 lbs) but might be something that would work well in a DIY situation. Gets good reviews. just wait 'till the wife goes to the store and borrow her oven for the pre/post heat.
http://www.millerwelds.com/resources/com...e-for-cast-iron