Can mixture control be cleaned with taking off the carb ? ken -----Original Message----- From: [EMAIL PROTECTED] <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Tuesday, January 11, 2000 9:28 PM Subject: RE: [COUPERS-TECH] [COUPERS] Mixture control
>One day my mechanic cleaned the mixture control portion of my carb and >we wired it to work. > >At first, trying to lean by ear, I couldn't get much control. The RPM >drop and sound gave me such a fuzzy "peak" that I couldn't do it well >enough to trust my technique. > >I bought a large scale EGT from K&S Engineering. It's one of those with >BIG distances between the marks. Twenty five degrees is big on this >scale. This kind of gauge has an adjustment knob you use to bring it >back if it goes off scale, high or low, due to power setting or >conditions. After leaning to the desired temp, you rotate the knob to >put the needle on a big reference mark so any deviations become >glaringly obvious. > >With this gauge, I can reliably find the peak EGT and set my lean at 100 >degrees rich of peak EGT for max power. I can also set it to 50 degrees >rich of peak for cruise. The scale is large enough on the meter, I can >control it to 10 degree increments. With my Stromberg carb, I find I >have to make my adjustments slowly and pause to see the effects but I >have good control even with my push-pull knob. > >For your high altitude part of the country I WOULD NOT be without an >ACCURATE, LARGE SCALE EGT and a working mixture control. They tell me it >makes a significant difference in actual power production up high. I >can, with my climb prop, always get to 12,500 feet with only one >exception: The "highest" I've ever been in my Coupe was at 11,500 feet >on a VERY hot Nevada desert afternoon with turbulence and density >altitude of 14,500. Just wouldn't climb any more that afternoon. > >As a side benefit, you get a lot better gas mileage when you lean in >cruise. In your area, you are always high enough to make leaning worth >the effort. > > >-- >Ed (the flatlander who's only gone on one 2,000 mile mountain trip but >who just likes to cruise high in the smooth, cool air) Burkhead >Peoria, Ill. >Ercoupe N3802H, 415-D > > > > >Larry wrote: >> >> Hot humid day or in the mountains? I can't clear the pattern without >being above 5000 ft. I'm used to more sophisticated mixture controls. I >want to put an egt on my Coupe. Can you do it and make it work with the >knob they call mixture control on a >> Coupe? >> > > >--------------------------------- >to unsubscribe send mailto:[EMAIL PROTECTED] > >_____________________________________________________________ >Keep up with breaking news! Join our Hot Topics list. >http://www.topica.com/lists/breakingnews/t/12 > --------------------------------- to unsubscribe send mailto:[EMAIL PROTECTED] _____________________________________________________________ Keep up with breaking news! Join our Hot Topics list. http://www.topica.com/lists/breakingnews/t/12
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