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#1
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On my engines, the ignition timing was set too far advanced, which resulted in increased CHT, while EGT was normal. Resetting the ignition timing on the magnetos to the correct value remedied the problem.
SavvyAnalysis was of great help in getting me an understanding of the problem, though my mechanic (Jay from Jay's Aircraft at John Wayne Airport KSNA, a real long-time pro, and also a pilot) came to the exact same conclusion without any prompting from me. Dan |
#2
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TC 1977 Reims Built F337G CYFD |
#3
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I agree with Herb on oil temps. I've been covering my oil coolers in the winters for almost 2 decades now. Same engines all along. Temps below 50F equals one piece of duct tape across entire cooler covering about 50% of the cooler. Temps below 35F equals two pieces of duct tape covering about 90% of the cooler on the front and about 80% of the cooler on the rear. Temps hang out around 180F all the time. Cold oil is not good in my opinion for the exact reason Herb mentioned.
You can easily experiment with how much cooler to cover. If you cover a little too much, its an easy matter of reducing power somewhat and coming back down and readjusting. My bet is that won't happen though. My oil temperatures have always been more of a challenge to get higher. Ed |