super steel on engine case.

[mark1]

I've just found out why my engine case is drawing gearbox oil into the top end, where I've had the cases welded there is a small pin sized hole going into the transfer port. Will it be ok to use super steel to fill it up or should I strip it all down and get it ali welded.
If I was running a standard top end I'd use the super steel but I've got an avanti top end fitted and obviously it will be an expensive mistake if it doesn't work.

[Wack]

Chemical metal will be fine, just rebate the hole a bit to get a better bond. You could always pressure test after to be sure.