I am working on converting my O-320 to Fuel Injection. One of my cylinders has a cast in Boss for the Injector hole, the other three do not (old cylinders). I could probably get the hole in the correct place by using the dimensions off the one cylinder with a boss. My concern is that the castings without the boss seem to be quite a bit thinner. It appears that the boss adds a decent amount of extra aluminum in that area.
Has anyone done this? Is there enough meat in the wall to provide enough threads after tapping the hole?
Thanks for any assistance you can provide.
Larry
Has anyone done this? Is there enough meat in the wall to provide enough threads after tapping the hole?
Thanks for any assistance you can provide.
Larry