Filed under: .50 sx-h Hyper, OS | Tags: OS Engines, OS Hyper 50, Raptor 50 Titan
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.
Today was a great day of flying. I was flying with Matt Botos today, great guy by the way. I was having issues with the head speed on my Venture 30 being too slow. Well Matt got a hold of it and corrected my issues by fixing the pitch on the blades, basically the engine couldn’t keep up with the pitch, so with adjusting some of the head linkages this was corrected. He also setup my idle up, not for 3d or anything but I now have a linear pitch curve with idle up being almost a straight line, 100 90 85 90 100. This greatly improved the responsiveness of the heli and made flying it much more enjoyable. Also, with the linear pitch curve (-8 to +11) the heli now comes down a lot easier.
Overall, a great day. I learned more today than I have since I started the hobby. I’m really looking forward to my next day of flying, I don’t know when that’ll be, but I’m still looking forward to it.
Here are General Operating Instructions for Webra 2 Stroke motors. This is on the Webra Engines website.
