Re: Antifreeze smell from exhaust pipes--time for sealer?
After it sits for a couple days, don't start it, pull all the spark plugs out. Crank the engine, any water will get blown out, then you will know what cylinder it is. Maybe have a couple of people watching while you crank.
If no water comes out, put plugs back in and start it. If it still smokes then maybe condensation like mentioned above.
If it is leaking into the cylinder, I don't think it goes away when warm. It's just not enough to see. I would guess a gasket issue, head or intake. A crack would get worse when hot.
67 Camaro email@example.com, firstname.lastname@example.org, 1.455 60ft 421sbc