Richard It is not the rebuilder's call. It is your call. With a functioning mixture control, YOU, the pilot, have the option to leave it always rich, or to do something else. By wiring it rich, the rebuilder took that option away from you. It is not just altitude, it is DENSITY altitude, meaning that you could be only 3000 MSL, and a hot day can make it like 5000 or higher. (What if Al Gore is right??) I know you may not want to argue with your engine rebuilder. (After all, one of the Rules for a Long Life is: Never p*ss off your airplane's mechanic!) Kindly and politely tell the rebuilder that you appreciate his initiative and good intentions, but that you prefer your mixture controllable. Just MHO Eliacim
----- Original Message ----- From: Richard Green To: [email protected] Sent: Friday, August 15, 2008 9:27 PM Subject: [ercoupe-tech] Mixture I am sure this was probably discussed before in this group but do many of you wire your mixture full rich? My new engine (C-85-12F) is coming back next week and the rebuilder said he had wired the mixture full rich to which I replied I didn't want that done. My guess is if you don't live away from sea level much or fly cross country much it might not matter. I do want to be able to lean above 5000' though so I want to keep it cabled to the cockpit. Am I missing anything? Rich N3881H
