tripp Heliman Location: Provo utah USA
My Posts This: Topic Forum | Ok i Really need some help. I have a falcon 400 3d which is just like a Zoom or Shogon. I cant get it to stop shaking. It shakes it self apart around 60 percent throttle. lets take the blades out of the problem cause it shakes just the same without them. looks to me like most of the vibrations are around the main gear, top of frame and head. It seems to be vibrating on a horizontal plain left and right I have changed the main shaft, it is and was straight, the spindle shaft was bent so i put in a new straight one. The swash plate stays vary flat. i replaced the fly bar and made sure it was vary straight when i put in the new one. The fly bar is in exact distance on each side and is balanced with CG at the center of head. both paddles are flat at 0 degrees There is no play in the head bearings with the spindle shaft, everything in there is in good cond. I see some things of concern, like the main gear wobbles alot. I have tryed everything to stop it, like adjusting all of the parts on the main shaft that are near or touching the gear. I have tryed two different moters. Was going to replace the main gear but I couldnt get the one way baring out of it and i dont see them for sell with the bearing already installed (think maybe you use a press but i dont have one). If I take the head off and spin it up, the top of the main shaf vibrats a little but not much (vary small hard to even tell). And the main gear wobles maybe around +or- 1.5mm ,2mm (Thats on the outside edge of gear). Thats all I can think of right now. Please help I have been trying to fix this for three hours a day for two weeks now. And im about ready to throw this "satan copper" out the window going 80 on the freeway. Thanks. |