Originally Posted by chucksolo69
I thought mine was making a "bearing" noise after installing a 3 bladed PZ Corsair prop on my PZ T-28. Turned out, after buying a new motor, that the old one was fine. It was my battery that was shot and wan't putting out enough voltage. I replaced the battery and the plane was fine.
I wish it was my battery! Nope, I am using new Turnigy 3-Cell, 2200mAH, 25C, Li-POLYs and they put out the power.
I am uploading a video showing the bearing noise at the lower throttle. Last night I took off the motor from the model and tried without any success to take apart the motor. The round keeper at the end bell could not be taken off due to the set screw in permanently and I guess they used the wrong type of Loc Tite at the factory!!
Needless to say, I went ahead and sprayed the motor with CRC 2-26 solution and cleaned out the motor as much as possible without taking apart the motor and used some RevDrops (In the days of lubricating Brushed Motors and their bearings) and still the Stock Park Zone 480 exhibits bearing noise at low RPM.
I guess the motor is coming out.