higher then 2500 feet. My A&P said what ever I do, don't baby it. Run
it hard and rich for those first 25 hours.

But vary the speed a lot. What you don't want is to get the engine too hot
too soon. Load the engine by adding power (full) in short burst. This allows
parts to temporarily come in contact with each other and "mate". When
unloading power, this carries the debris from mating process away in cooling
oil. Due this somewhat in the first 25hrs, then do a break in oil change to
get rid of the metal parts floating around. Now you are good to go. What
ever you do, do not lug the engine at low speeds, this with cause excess
heat and cause engine parts to polish as opposed to mate. So no prolonged
climbs at best angle or too much "slow flight".

Richard

"A Lieberman" wrote in message
...
Frode Berg wrote:

Is there anything we should be aware of the first few hours running a
newly
installed factory overhauled engine? It's a Lycoming.

Hi Frode,

I had the honors of breaking in my 360 AK4 Lycoming in my Sundowner.

For the first 25 hours, I ran it full throttle and full rich and flew no
Allen