Originally Posted by
sensei
Breaking in my gas engines has always been done in the air, I set my high end needle just a touch rich and keep the full throttle bursts to a minimum.
Bob
Except for a few tanks on a test stand to set the engine I think the reality is everyone breaks their engine in while flying. One engine manufacturer said it takes about 5 gallons of fuel to really break an engine in might worry about wearing out the test stand LOL.
Dennis