Quote:
Originally Posted by Excaliber
Say, Undy, didn't mean to steal the thunder from your thread with the Evan's thing. Do keep us updated on where the leak is/was.
...of course, if you'd been running Evans at low to zero pressure one could theorize you would have never known there was a problem because the coolant may have never leaked in the first place!
Is that a reasonable theory? That with low or zero pressure there would be no leak into the valve cover area?
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No stolen thunder here...
It's actually pertinent to my problem. If it wasn't for the poorer heat rejection factor of the Evans I'd consider using it. I'd actually looked in to it a couple years ago. I tend to remember making a post or 2 about it here but there was little if any interest at the time. I worked v-e-r-y hard to get my cooling system up to a required capacity to keep my engine cool. I honestly feel the Evans stuff would negate all my efforts in one fell swoop.
It's not only about keeping your mess from boiling over, bursting hoses and blowing by gaskets. It's about maintaining the actual engine at a certain temp. That's required for
oil temps, efficient combustion and the "right" amount of engine expansion.
While I'm on the subject of engine expansion... With an all alloy engine, proper expansion (engine temperature) is much more critical then the equivalent all iron motor. I talked to Robert Pond recently and he said his greatest terror with his aluminum block is overheating. You run the chance of gauling cylinder walls, poor piston sealing, warpage and failed gaskets. If the Evans stuff causes my alloy motor to run warmer (210+ degerees) then that alone would be a deal breaker. Before I got my engine temps under proper control I'd noticed that as my engine temps climbed above a "desired" temp my "blow-by" actually INCREASED. This was determined by removing one of my valve cover breathers and visually checking the amount of combustion gasses (vapor/smoke) exiting the valve cover. When engine temps were "normal" there were no gasses that I could detect. Once temps started to climb above my perceived "norm" the visual vapors dramatically increased. Once temps returned to normal it stopped pumping the vapors...
Soooo.... that being said, it's water, water wetter and a taddly amount or aunti-freeze for me.
