Freeze plug pushed out

Penstarpurist said
That's what I am afraid of, for the few bucks to replace them it would probably be a big mistake not to swap them all out.

Keep in mind, freeze plugs are "supposed" to be a press fit. SO, for instance, if the listed size of the plug is 1 5/8 for example, the actual measured size should be like 1.627 or maybe 1.628. You get the idea.