Air cooled engines, especially older ones, often suffer from fins cracked off the heads and barrels - maybe from crash damage, maybe from ham-fisted mechanicing. Repairing them is not easy, but highly desirable. Today I collected a Moto Guzzi Le Mans head which had the fins welded up yesterday. The job has been done rapidly, efficiently, and as far as I can see effectively. http://www.baronspeedshop.co.uk/
That’s pretty impressive. The only giveaway is that they are too clean at the moment, but that will average out pretty quickly.
I have bolted the head back on the bike and taken it for a ride today, to the Ace Cafe. It appears to work just fine, and looks a lot better than before.
That looks pretty good. I used a two pack "liquid metal" filler (can't remember the brand) to repair a broken barrel fin on my MZ, it has held up pretty well....so far. It's off for a re-bore soon so shall see if it stands up to the stresses involved in that.
