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Engine overheat and failure - M20R O2


mrb13676

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Hey. I mentioned this problem before in respect of the Acclaim but suspect I mayhave been flying it wrong. However, I had the engine fail again today in cruise on the O2. 22in MP, 2400RPM and leaned to 19GPH with EGT <1000. Have included screenshot showing the engine percentage falling rapidly through 87% . The weird thing is the CHT is really high which I would not expect running a realitvely rich mixture. It failed earlier in this flight when I was leaned 50deg ROP (had FF 12.5GPH)and I repaired, then ran full rich until the CHT went down to normal and then leaned to this level. Thoughts?

43601466012_dcf093ae27_b.jpgUntitled by Mike Blackburn, on Flickr

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On 7/26/2018 at 9:04 AM, mrb13676 said:

Hey. I mentioned this problem before in respect of the Acclaim but suspect I mayhave been flying it wrong. However, I had the engine fail again today in cruise on the O2. 22in MP, 2400RPM and leaned to 19GPH with EGT <1000. Have included screenshot showing the engine percentage falling rapidly through 87% . The weird thing is the CHT is really high which I would not expect running a realitvely rich mixture. It failed earlier in this flight when I was leaned 50deg ROP (had FF 12.5GPH)and I repaired, then ran full rich until the CHT went down to normal and then leaned to this level. Thoughts?

43601466012_dcf093ae27_b.jpgUntitled by Mike Blackburn, on Flickr

Looks like I got this fixed, it will be in the next hotfix, releasing after internal testing for a few days to make sure we didn't break anything else.

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