keithstric – R/C Heli

I had an issue yesterday at the field. Heli was making a strange noise. The general consensus was that the rear bearing needed to be replaced. I have a little over a year’s worth of flying on this engine, so it really is time to replace the rear bearing. Today I started disassembling the engine and found that everything within looks like new and had a nice coating of oil over everything. The bearing is fine, but I’m going to replace it anyways.

What’s interesting though is that during removal of the engine I found some bolts were missing. 2 that hold the engine to the engine mount and 1 from the clutch. So now I’m thinking that the noise I heard was rattling due to the missing bolts. Upon inspection the clutch wasn’t damaged but the missing bolt was no where to be found. Surely it couldn’t just fall out, but it appears that’s what happened.

I don’t know if replacing the bearing will make a difference in performance but I’ll keep you posted as to the outcome and try to post some pictures shortly of the engine.

Pictures posted. I know the quality isn’t that good, they were taken with my cell phone.