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1. 03:42 AM - Re: CHT Temps (Matt Tucciarone)
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That was good you got the air out. I know a guy who had air in his
system, the coolant got so hot, some turned to steam and he blew a
coolant hose in flight.
He decided to make an emergency landing. I hear if you throttle back
enough, you can run the engine without coolant to a safe landing.
From: John Fasching
Sent: Friday, June 11, 2010 11:00 PM
Subject: RotaxEngines-List: CHT Temps
I resolved this problem. I can only guess, but upon blowing into the
coolant tank I found that I could move air from my blowing into the
system, and that came with some coolant movement....when I finished, the
coolant level was no longer at the top of the input point, but seemed
empty...it took a full liter to refill the system. There had been no
leaks. I can only guess that somehow I had air 'trapped' in the
system...the thing that fooled me was that the hose from the radiator
was reasonably hot, so I assumed there was coolant being moved through
the system...perhaps there was, but it wasn't enough. After adding the
coolant the system appears fully normal. Prolonged running did not raise
the CHT much past 150. thanks for your input.
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