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Old 09-13-2018, 08:33 PM
oldskewel oldskewel is offline
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Quote:
Originally Posted by jpilk99 View Post
Thanks Oldskewel. I guess my big question, about the "geyser" of coolant coming up/out of the bleed screw: IF I had a warped head or headgasket issue, HOW would that come into effect with the engine not running? There would be no combustion going on?
Yes. The geyser is just due to not having the bleed screw in. Unrelated to any combustion gases. You need to loosen the bleed screw enough that the o-ring is loose - that will allow gas + a little liquid to come out, letting you know when it is time to tighten it.

The thing related to combustion gases is when I think you mentioned that after the bleed screw is tight, expansion tank cap is on, and you get back from a drive, you notice leaking at the expansion tank cap.

Quote:
...but when I opened the hood, I could see a minor leak from what looked like the cap. And I could hear the slight hiss of air escaping ...
That's what I had - after replacing the radiator + upper/lower radiator hoses, thinking I was in the final bleeding/tuning phase ... and found out I was just getting started.
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