Well, it's cracked. How bad is it?

RustyRatRod said

Then remove it. How important is this to get right? Just a little bit, or a whole frikkin lot? I think "I" know the answer if you don't.

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It is very important. I was just hoping to avoid this as I am not set up here to disassemble the engine. Would breaking the piece off as you describe not eliminate the need to drill the hole?