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Stratus-List Digest: 1 Msgs - 04/30/06

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gfetzer(at)peoplepc.com
Guest

Posted: Sun May 07, 2006 4:27 pm Post subject: Stratus-List Digest: 1 Msgs - 04/30/06

I believe that if you remove the heater you still need to connect the

two lines to form a bypass line.  When the thermostat is closed you will

need a path for coolant to circulate.  The heater core should dissipate

a few BTU's even with little air flow.  My aircraft in FL did run a

rather high oil temp until I added a cooler.  Oil experts told me that

240 was not way too hot, just shorten the oil change intervals, but the

cooler dropped it way down.  I was never a fan of straight water, and my

understanding is that the 50% mix will remove nearly as much heat as the

water only coolant with none of the negative results.  Without the

antifreeze your boiling point will be drastically reduced and a boilover

will be more of a certainty, especially if a small leak were to develop

and reduce the system pressure to zero.  Boiling point would then be

212F at sea level, lower at altitude.



George



I just started flying again after my move to TX and it's hot!  My temps

were

so solid until now at 190 water (200 after climb) and 220 oil (230

climb)

even on hot days in RI and the whole flight thru FL to TX.  Even taxiing

at

Oshkosh for a half hour in the heat was fine a couple years ago.  Now

I'm

seeing 220 water and 240 oil, and a bit higher during climbout.

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gkrysztopik(at)satx.rr.co
Guest

Posted: Sun May 07, 2006 7:39 pm Post subject: Stratus-List Digest: 1 Msgs - 04/30/06

George,



Thanks for the feedback.  Yes, I'll keep the bypass loop.  Good to know that

240 oil temp is ok.  I'm going to change to Evens NPG to give me more

headroom for boil-over.  Making an clean exit duct now for radiator - hope I

don't need oil cooler or bigger rad.



Thanks,



gary



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