Coolant leak, drivers side lower timing cover?

dano said

Good to know. Hopefully that is not the case or my block is now scrap...

I do recall it tightening up the PS mount just fine and not feeling like I had to overcome some friction to get it tight. But it probably doesn't take much to puncture cast iron.

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It does not mean you used a too-long bolt; I just mentioned that to show that some bolts holes do indeed penetrate into the cooling jacket. It just means the thread in the front of the block are not sealed. Back that one out, and if it is free with only about 1/4" or so of backing out, then is ought to be the right length. It ought to be easy to tell if it is the right length.

And you can stick a thin rod into the hole to go all the way back to the cylinder wall and mark it to see how deep it is back to that part of the casting.