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Aztec F, high CHT

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Apr 25, 2011
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Hello, I am new to the board. I fly a Aztec F turbo. On my right engine the #5 cyl CHT runs high. All other CHT´s are in the 350-380 area and this one shoots up to 400 -405. I have to crack the cowl flap open to help it cool down. Typically I use 27" & 2300 RPM and 15.5 gal / engine.
We have cleaned the inyectors, swapped the JPI probe, checked baffling. Any new ideas come to mind?

Thanks, Patrick.

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