Welding into cast aluminium is easy and safe. This is routinely done to Enfield engines when converting them to 750cc. The main bearing housings are welded so they can be re-machined to take bigger main bearings. I had a 500 Triumph once that threw the primary chain through the chaincase ( faulty qualcast clutch hub) the welded repair was not noticeable afterwards.
I dislike welds into cast iron, somehow they never seem to be any good.
|