18-12-2020, 11:31 AM
(18-12-2020, 09:19 AM)bob46320 Wrote: Interestingly, one of the core plug bosses was about 0.005" higher than the rest of the stud bosses which I had to address before bolting down to the table.. How did that leave the factory ?
I think the raised boss would most likely have been the result of frozen coolant some time in the distant past. The head would have been machined at the factory in a single pass with a big facemill; something a bit like this...