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Mixture hypothesis

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Dec 27, 2017
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My little O320-E2D seems to burn a solid 10 gals an hr, which seems high. I notice on the ground that I need to lean it out to make it run smooth (I'm more or less at sea level). When I do the run up, I advance the mixture to full and the engine sounds a bit like its gurgling on fuel.

I do not have an engine monitor. I am going to play with it more and see if I can fully establish a fuel burn trend. I haven't done enough flying to fully check the math over a respectable number of hours, yet.

My thoughts are that the mixture, in rich position, is putting too much fuel in. Is this a setting that can be readily checked to a spec and adjusted?
 

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