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  #11  
Old 01-14-2020, 11:28 AM
cfmcowboy cfmcowboy is offline
 
Join Date: Nov 2019
Location: Calgary, Alberta
Posts: 8
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Thank you for the clarification Sam. FWIW, my RV7 is in a semi insulated hangar and although it was really cold yesterday when I made my video I was very impressed that both oil temps and cylinder temps were between 70-80 degrees F. I did place a couple moving blankets on top of the cowl and cowl inlet plugs in.

I also use Camguard.

John
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  #12  
Old 01-14-2020, 12:28 PM
cfmcowboy cfmcowboy is offline
 
Join Date: Nov 2019
Location: Calgary, Alberta
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And do go down the rabbit hole further, I spoke to Lycoming this am and the rep suggested that I do not keep it plugged in 24/7. The reason being that the moisture released from the oil could collect on the cooler parts of the engine above.

This got me thinking, it the oil sump is keeping both the oil, engine and cylinders around 75F or so consistently would this apply?

J
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  #13  
Old 01-14-2020, 01:24 PM
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Sam Buchanan Sam Buchanan is offline
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Join Date: Dec 2004
Location: North Alabama
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Quote:
Originally Posted by cfmcowboy View Post
And do go down the rabbit hole further, I spoke to Lycoming this am and the rep suggested that I do not keep it plugged in 24/7. The reason being that the moisture released from the oil could collect on the cooler parts of the engine above.

This got me thinking, it the oil sump is keeping both the oil, engine and cylinders around 75F or so consistently would this apply?

J
Your inquiry is akin to the Great Primer question.....you will not get a consensus....usually just blanket opinions offered to cover all scenarios. Use your own common sense to reason this out.....
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Last edited by Sam Buchanan : 01-14-2020 at 01:27 PM.
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  #14  
Old 01-14-2020, 02:25 PM
Jetmart Jetmart is offline
 
Join Date: Sep 2019
Location: Windsor, Ontario
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I believe the current thinking is that if you have both an oil sump heater and cylinder head heat that it is better to leave the heat plugged in continuously. At the same time it is recommend to pull the oil dipstick after flight and leave it out between flights. This allows any moisture in the engine to escape up the dipstick tube and reduces the likelihood of moisture re-condensing in the engine.

I had ongoing corrosion issues on the cams of a regularly flown twin engine in a heated hangar until I adopted this practice.
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1942 Tiger Moth
2017 Waco YMF-5
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