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Ol' Ron · 11-16-2021, 01:03 PM

Using a 3" hole saw, you can drill down and break off all the rings one at a time. I have a fixture that I use to center the hole saw in the bore (3 3/16 plate with a hole in the center) When you get to the ring, use a center punch to brake it. Works most of the time???
Gramps

11-16-2021, 01:03 PM	#15
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,879	Re: 1949 Merc 8CM engine Using a 3" hole saw, you can drill down and break off all the rings one at a time. I have a fixture that I use to center the hole saw in the bore (3 3/16 plate with a hole in the center) When you get to the ring, use a center punch to brake it. Works most of the time??? Gramps