At 09:25 AM 3/1/99 EST, you wrote: >Steve, that does sound like a lot...... but are you checking at wide open >throttle, or at 1800 RPM (?)... Seems like I remember that the mag check and >run up is at a lower RPM on the 0-200 than on the C-75/85. ??? (which is done >at full throttle) > >This may be due to a "richer" economizer valve in the carb circuit, that >comes into play at wide open throttle. This makes the mixture rich under full >load for cooling purposes....So, at full throttle, then using carb heat and >hot air, the mixture would go reeeeeeal rich, and show those kinds of RPM >drop... > >I seem to remember that the run-up is done at a lower RPM range, but had not >thought about it before..
I do the runup at 1700, but also tried it in the range from 1500-2000. The drop is about the same in the whole range. I looked at the carb heat system. There aren't any obvious restrictions anywhere. Maybe it's just this way. ---------------------------------------------------------------- Steve Dold ([EMAIL PROTECTED]) http://home.pacbell.net/sdold/ Say NO to useless over-quoting ----------------------------------------------------------------
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