Originally Posted by
apereira
I do beleive is break in needle valve and oil related, I did the same as FBW, broke in the engine with 23% oil, but 2.5Lts of fuel, then break in needle still open fly.
I have to try the YS fuel I got when weather colaborates, and that has 10% oil, thatīs why I burned so much 23% first. I have seen the same issue with a 185 Red that had the break in needle valve closed, and failed around 40 flights, as I investigated the motor, found the bushing rotated due to heat closing the lubrication orifice causing it to melt on the cranckshaft pin.
Will see how mine does on low oil.
I've always run 10% oil, for break in and flying. I fully close the break in needle after bench running for break in.
If it was oil % related, I would think I would have had more than 2 failures in around 10 years and 1000's of flights.