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What I have seen so far and what makes sense to me is to cover the third
hole under the prop when flying in cold weather.
First it keeps the Carb warmer and second since the hole is designed to
give the oil sump extra cooling, you might achieve your higher oil -
temps.
Have in mind that the temperature probe in a small Continental is fitted
just right after the oil pump, thus giving you the coolest temperature your oil
might have in its cycle through the engine. When the oil passes the oil galleys
into cam and crankshaft it probably gets a few degrees warmer .
With measured oil temps of just slightly under 180 , your oil is still
reaching the boil off temp within its working cycle. So no worries there.
If someone reads only 140 degrees, it's still not reason to big concern, I
would just use 40 weight and change the oil more often.
However. Putting some adjustable flaps in front of the air stream in the
nose bowl will be problematic, since the pressure is really high there and any
flap will just be held open by that pressure.
I would not , NOT ! cover the air intakes for the cylinders. These seem too
important for the cooling stream to me.
Hartmut N3330H ( running 180 F with an outside temp of 2 C on his
overhauled C-85)
----- Original Message -----From: [EMAIL PROTECTED]Sent: Friday, November 28, 2003 5:00 AMSubject: Re: [COUPERS-TECH] Oil temp.----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----All,Thinking of oil temperatures this winter, living in Michigan. Is there an adjustable louver available for the opening in the nose bowl above the air intake opening? Any suggestions on closing up some air to keep the oil temp up? If I recall, it seems that my oil temp runs just below 180 deg in cruse with ground temps around 40. And it takes quite a while for the needle just to move after start up with the same conditions, prior to taxi. I'm looking forward to some winter flying, as the performance greatly improves.Any ideas on adjustable louvers or similar?Cal 415D 3988H============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers-tech/
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