I removed the bushing from the Ducati cylinder head I brought home the other day. You can see a gouge in the threads in the head, obviously where the leak was coming from.
I put the head on my surface plate after leveling it up, turned an aluminum bar to a snug fit in the hole, tapped it in and measured the angle - looks to be about 45 degrees. I'm not quite sure of the fix yet but I need to make a cover for the bevel gears to keep a bunch of junk from getting in there. If I work it right I can make a pressed in bushing and then weld around the bottom so it won't leak again. That way I shouldn't have to fixture the head and do any machine work on it but if I do, I know the angle to set the head.
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