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Thanks to all the fine folks at Terrell who gave me advice: Harry Francis, WR Bayne, Lynn Nelsen, John Wright, & many others (apologize for the lousy memory). Late Sunday afternoon: 1. Took air filter out and checked carb heat plate. It's working fine 2. Replaced air filter element 3. Externally inspected gasket on cyl 1 air intake port (looks fine) 4. Adjusted one of the rubber hose air intake sections, which seemed shifted. Tested. No success. Adjusted another of the rubber hose air intake sections, and tested again. Initially, it seemed we had the same problem, however, while playing with the mixture control, the tach suddenly jumped into the green RPM range. Eventually, the plane was able to take off (RPMs in the low green) with the mixture control fully out (lean). Never, ever we have needed the mixture out to get the RPMS in the green for takeoff. Flew for nearly an hour (over and next to the airport) and the RPMs were lower than normal, but the plane was getting better and better as time passed on, and as it gained altitude. At the end, the tach would get to the red line, without leaning. Landed and took off again. Seemed OK. Landed, with the intention of taking off a third time, but then, static RPMs wouldn't go over 1900 indicated at full power, even with full leaning, so, no take off. Something had just changed. All the improvement on the last 1/2 hour suddenly went away. Conclusion so far: Something's keeping the mixture too rich, but kind of intermittently. A carb malfunction would be an amazing, hard to believe coincidence, since in all the repairs made, the carb was not ever touched. Open the carb? Then, what? Is this something any A&P can tackle, or is it some kind of specialty? Send the carb out to be overhauled? Where? Can anybody recommend a good carb overhaul facility? Any idea of the cost? At least, now we know a little more. Thanks Eliacim Cortes -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm
