Originally Posted by
modeltronics
Gary
I have live tools on a turret I can use with the CNC lathe. Drilling at a 90 degree angle from the part being held in a collet would be no problem. I need to think about it a while to see if there is a way I could produce a hole at a 60 dregree angle. I still wonder why that exhaust manifold broke in the first place. I think I have been flying that plane for over 5 years with that set up. It was a first for me. I wonder if the usual suppliers for parts that did not have it any more indicates that there was a problem with it............
Nah, the design is fine, rare to see one break. That header became obsolete when the new trash can mufflers with side entry were introduced.