Wondering if anyone else has had issues with their tailshaft pully not sitting between the bearings? My orginal heli was the Non X version with the free upgrades on it and as the first Rex had a raft of issues I put it down to that.
So I recently replaced the whole tail with new parts and I can still get the tail shaft and move it 2mm in each direction with the tail unit housing (121 and 122) really tight. My solution previosuly was to file a small amount of these parts so that the tail pully was tight in the bearings.
Does any elese's tail shaft move in and out? Or have I been unlucky twice with badly molded parts?
Mine did that on first assembly, then I noticed that the shaft pointed LEFT looking from the rear, I re assembled it , shaft pointing RIGHT side, looking from the tail forward, that fixed it.
You're not alone...had the same problem. Gyro does not work so well like that. I stuck some shims in the gearbox...can't remember where I got them from. The typical tail rotor gearbox/shaft "fix."
02-04-2005 Over year old.
electron_flyer Senior Heliman Location: Cape Town, South Africa
Mine (450X) needed a single washer behind the bearing to remove slop.
Any slop (even .5mm) will have an adverse effect on tail control and must be removed.