Cool CHT’s now winter is a coming.

[Danb]

Flying yesterday outside temperature 38 so not cold yet. At 3000 feet -3*C, my hottest CHT was 290 rest 270-290. What’s my risk for low CHTs. My profile was about 23” 2400 RPMs 

 

 

 

 

[Shadrach]

54 minutes ago, Danb said:

Flying yesterday outside temperature 38 so not cold yet. At 3000 feet -3*C, my hottest CHT was 290 rest 270-290. What’s my risk for low CHTs. My profile was about 23” 2400 RPMs 

 

 

 

 

No risk really unless you start fowling plugs (unlikely). Mixture setting?

[Danb]

27 minutes ago, Shadrach said:

No risk really unless you start fowling plugs (unlikely). Mixture setting?

25* lop 

[Schllc]

I’m wondering if that’s really a problem at altitude. It’s already pretty cold up there and the air is thin. I have not seen a problem in the FL, but I don’t go over 20k too often. 

[LANCECASPER]

If you are operating in real cold conditions you could tape over 1/3 of your oil cooler to help keep the temps up, but nothing wrong with 270-290.

Mooney made a cold weather kit which effectively did that - it blocked off part of the oil cooler.