stripped --well, rounded out-- oil galley plug, how remove?

[hypostang]

the one in the back goes into the water jacket. Do not remove that. There is one on each side, but if you stick an oil pressure gauge in there, you will not get the results you expect. Plus, you'll get a bath of green slimy fluid. Having a draincock in those wouldn't be the dumbest idea since it would allow a better flush of the cooling system but good luck getting them out.


for the rounded out one, if it is not leaking and not drilled through, leave it alone.

That's what I thought , I have spent the last 15 minutes looking at pictures of engine blocks to see the plug he was talking about . I didn't find any

[BerniniCaCO3]

Ohh.. OK, thanks for the warning.
It just looked like exactly the same plug, in exactly the same place, as the oil pressure plug.

Hahahaha.
"Why is oil pressure 0 when cold, and then reaches 16psi and no further??"

[BerniniCaCO3]

that also explains why the one stripped. The one in back I got out, with difficulty, and replaced with a fresh one when I rebuilt the engine. One in front never did come free.
Coolant + iron = rust = glue