I'd have to check that...From memory I think that it's 3BA.
However, if the thread in the alloy block has gone it can be tapped out to the larger size of the K2F fixed point and that used instead..The K2F fixed point has to be shortened a little as well for the Magdyno application...
The threads are definitely BA, I'll check the sizes tomorrow if no one posts here first...Ian
Hi Ian, thanks for your reply.At first sight it appears to be 4 ba. However, when I tried to run a 4 b a die on it it ran on about 4 or 5 threads and then started to jam. Another friend has suggested that it could be a very small unc or unf ??????
It just so happens that I've just stripped a magneto in readiness for overhaul by my bloke. He hates stripping and cleaning so it save him the effort and me the money. Ron