PA28-180 B Power Settings

[greenbaron]

There is no power setting chart in the Model B POH. For break-in of an overhauled engine, Lycoming recommends cruise at power settings above 65%, and preferably in the 70% to 75% of rated power range, for the next 50 hours/ until oil consumption stabilizes. The manual does have a true airspeed and rpm vs standard altitude chart that would seem to show %power settings...but what is standard altitude? Do they mean to say pressure altitude? Density altitude?

Also, as far as leaning, what is considered better to use for break-in, leaning for power or economy?

 

[greenbaron]

 

[goosenmaverick]

 

[Unit74]