its overheating so badly you cant not know it is....the radiator is bubbling and boiling profusely the valve covers are so hot you cant even touch them and steam is coming out of the radiator and valve covers
Key words in red.
The vcs will be too hot by 140 as most people cannot keep their hands on 140 for more than a second or three..
Steam will begin to come out of the open rad also as low as 180, so still not too hot.
Steam has no business coming out of the vc's. Firstly, it better be blow-by gasses, and secondly the PCV should be sucking those up! and thirdly if there is enough blow-by to overwhelm a good-working PCV system,then there is a serious internal problem going on.But if in fact the oil is vaporizing, then the engine is seriously HOT cuz that don't start to happen until 230*F or more. But the PCV should still be sucking it up.
But the key words in red tell an honest story, cuz water don't boil until it hits 212*F at "normal" atmospheric pressure. And if it's boiling with a new cap on,and puking out the overflow, well then there is a problem for sure. But if it's 50/50 coolant and steaming, IDK. I forget stuff.
Puking out the overflow, by itself may not be a problem, if too little room was provided for expansion during the refill. But puking AND boiling is a problem.
There are two times when you don't need a temperature gauge to tell the temp of water and they are ;at 212*F and at 32*F, Cuz the water don't lie. And if your cooking french fries, the oil boils at around 250. So when you see it boil, dump the taters in. When it comes back up to boiling,and the fries turn golden brown, the taters are ready to go. No gauge required. And if the paint is peeling off your cardoor, you are too close to the campfire, no gauge required. And if your pee freezes before it hits the ground, you better be bundled up cuz it's cold enough outside to kill you in minutes. And......if your dumb enough to have your tongue stuck on the pump-handle, your big brother will be smart enough to pee on your tongue and get you loose, and you will love him for it.
