REFLECTOR: New Plane - New (sort of) Engine dilemma

[Scott Derrick]

Don't break in the engine on a new airframe. The guy that built my plane 
did that and the engine while strong and reliable used a lot of oil. Qt 
every 5 to 8 hours depending on how hard I ran it.

If possible get someplace with a dyno or break-in chamber to run it 
under load with adequate cooling to break in the cylinders. If they are 
not chrome it should only take 2 to 10 hours..

Scott


Hiroo Umeno wrote:

> It looks like I am in a bit of a pickle and I am wondering how others 
> might have worked through this problem.
>
> I have an engine that is essentially being completely re-built from 
> the ground up. When done, it will be in the “0 HSMO” state. I also 
> have the plane that is being finished up at this point. The two will 
> be re-united soon (I hope).
>
> Now, as I look through the engine manual, it requires me to keep the 
> RPM fairly high during the burn-in process. But with the plane being 
> “brand new”, taking it to a cruise altitude isn’t an option. Keeping 
> the RPM high on the ground for a long time also seems problematic 
> since there will not be enough airflow to keep the cylinders cool. I 
> can do “high speed taxi” but that still is not a “sustained high RPM” 
> the engine manual requires.
>
> How have others worked through this problem?
>
> FYI, I have Franklin on Velocity SUV.
>
> Hiroo
>
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