Today I had a problem with a friend's OS .46 LA mounted on a trainer plane. It would start up fine and then in flight gradually lose power. I would land the plane and the motor would be hotter than normal. Let sit for a while and it starts back up again and then repeats the loss of power thing in the air. Made several adjustments including changing glow plug and flushing out all lines and carb. Still gets hot. When putting the plane away for the day I noticed that the motor mounting bolts were all loose and would allow the motor to move about maybe 1/16". Could this condition cause vibration that would in turn cause the motor to rund lean. I have not had the chance to tighten the bolts and test run the motor. Anybody, what do you think?
Running Omega pink 10% fuel, works very well in my other motors.