No.. I wouldn't imagine so..



It's not like your burning alot of wire for that little hole..



If you were welding a plate on it I would be afraid of it warping..

 

Sorry I meant I was going to remove the nipple on the waterpump housing and weld that shut.

 

Or you could counterbore it for a small freeze plug.

 

The motor will be out of the car..



Maybe I should tap it, plug it, then run water through the motor with a hose or something for a while? Think that would catch all the shavings?



(with the water pump housing assembly off...)



What do you think?

 

Oh yeah and as for polishing..



Should I use a really small grit sandpaper for the finishing touches? Buffing wheel or something? I've never done this before.. I've got it shiny as ****, but not quite a 'glassy' finish.

 

use high grit sand paper untill there are absolutely no pits in the metal, then polish that bitch up

 

There was some scuffing from the rougher stuff I was using.. It almost polished out but not quite..



Not enough for my liking anyways.



I guess I'll try higher grit then polish!