Leaning methods

[rlinford]

When all else fails read the instructions: http://www.lycoming.com/support/publ...fs/SI1094D.pdf
From SI1094D: The exhaust gas temperature (EGT) offers little improvement in leaning the float-type carburetor over the procedures outlined above because of imperfect mixture distribution. However, if the EGT probe is installed, lean the mixture to 100°F. on the rich side of peak EGT for best power operation. For best economy cruise, operate at peak EGT. If roughness is encountered, enrich the mixture slightly for smooth engine operation.

[Nathaniel]

Thanks Nathanial. So does that settle the discussion regarding LOP on carbureted engines, since if I adjust any leaner it would cause rough running.

You're welcome. These engines burn so little already I wouldn't worry about it. When I was running a big bore 6 cylinder on my Bonanza I had balanced injectors and an engine analyzer and fuel totalizer. Savings could be had there. Of course fuel was $1.99/gal and I didn't buy the airplane to go slow!