Today's Message Index:
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1. 05:27 PM - Re: Stratus-List Digest: 1 Msgs - 04/30/06 (George Fetzer)
2. 08:39 PM - Re: Re: Stratus-List Digest: 1 Msgs - 04/30/06 (gary)
Message 1
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| Subject: | RE: Stratus-List Digest: 1 Msgs - 04/30/06 |
--> Stratus-List message posted by: "George Fetzer" <gfetzer@peoplepc.com>
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.
Message 2
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| Subject: | RE: Stratus-List Digest: 1 Msgs - 04/30/06 |
--> Stratus-List message posted by: "gary" <gkrysztopik@satx.rr.com>
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
-----Original Message-----
From: owner-stratus-list-server@matronics.com
[mailto:owner-stratus-list-server@matronics.com] On Behalf Of George Fetzer
Sent: Sunday, May 07, 2006 7:26 PM
Subject: Stratus-List: RE: Stratus-List Digest: 1 Msgs - 04/30/06
--> Stratus-List message posted by: "George Fetzer" <gfetzer@peoplepc.com>
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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