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Old 02-07-2019, 04:07 PM
Nova RV Nova RV is offline
Join Date: Aug 2015
Location: Leesburg, VA
Posts: 353

Originally Posted by RV10inOz View Post
From memory......Lycoming publish a number well below 200dF and TCM 225dF.

Interesting that TCM with their water cooled engine (a jacketed version of their normal engines) set the temp at 225.
I found this in the IO 390 operation and installation manual, P.18

For maximum service life of the engine maintain cylinder head temperatures
between 150°F. and 435°F. during continuous operation.

Thanks for the reminder to go back to the manual for guidance !
Chris Moon

Leesburg, VA
RV-14A kit # 140243 (flying as of 11/18)
VAF 2018 and 2019 paid

Last edited by Nova RV : 02-07-2019 at 06:32 PM. Reason: wrong page reference
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