Trying to replace the main gear on Belt CP V2 with Main Gear from Eflite Blade 400.
Supposedly it's a direct replacement.
The shaft and main gears assembly once installed is binding (much harder to turn than normal).
But only as soon as I get the little long screw all the way through the holes in the tail rotor gear (bottom) and main shaft and small 'tube'.
The metal 'tube' is the small part that fits into both of the gears (main gear & tail rotor main drive gear and what couples to the one-way bearing on the main gear.
It all turns very nicely and freely until I get that screw through the bottom gear.
The shaft is not bent.
I've had it apart and back together 5 times and am still scratching my head trying to figure it out..
I've disconnected the tail belt to make sure the binding is not anything to do with the tail or the belt drive shaft..
It starts to bind as soon as I get the long screw through all the holes at the very bottom of the main shaft.. I don't even have to get the nut on it before it tightens up the rotation..
It turns but it's much harder to turn than normal
If I simply take the screw out of the bottom of the main shaft it all turns very nicely with ease..
It's got to be a simple problem and I've had no sleep and I'm being stupid.
Crap I need to dig out /find the the old gear and see if this Eflite part is my problem :-(
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OK, that was a fun wasted 4
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