Lycoming 0360-A4A - 1500 RPM Hesitation
I fly a Piper Archer II with a 0360, normally aspirated. It has a slight hesitation when passing though the 1300 to 1500 RPM range. Just a hesitation, never anything more. Having talked to several A&Ps and having it thoroughly checked out, the consensus is, it due to a cut over from lower RPM carb jets to higher RPM carb jets and is common and not a concern. I have also noticed it is much more noticeable on hot summers days, and not noticeable in cold weather flying.
Has anyone else encountered this on an O360 or an Archer II? Any conclusions or remedies?