cant take-off

[supamansuper]

I put all the new parts back on cp gold but now the thing wont lift off any suggestions.

[Ross Northcott]

put a pitch gauge on and see what pitch you have, dont know much about cp gold but on all my heli i have +12, -12 in idle 1.

[spunkmyer]

I put all the new parts back on cp gold but now the thing wont lift off any suggestions.

What parts have you replaced reason I ask is this might explain why your having problems. It does sound like there is not enough pitch

[supamansuper]

tail boom,main shaft,tail shaft.

[spunkmyer]

Main shaft, did you remove the servo horns to remove the head?

[supamansuper]

i just unclipped the ball joints

[spunkmyer]

Ok that rules out the servos being not centered.

The manual states:

MAIN ROTOR TURNS BUT HELICOPTER
DOES NOT TAKE OFF
Solution 1 - This sometimes happens if your
rotor blades are flying too low (not enough pitch).
The helicopter will sometimes take off, but appears
to be low on power. This is nearly always
because one blade is flying too low. If this is the
case, follow the procedure outlined in Solution 4
of VIBRATION.
Solution 2 - Gear mesh too tight.
This is rectified by loosening off the motor retaining
screws and pushing the motor away from the
main gear slightly. Re-tighten the mounting

screws to secure the motor in its new position.

I would check the gear mesh as your replaced the main shaft you have removed the main gear to do it. Did you undo the motor screws?

[supamansuper]

yes,i took the motor off because i stripped the whole thing down to see if anything else was bent or broken

[spunkmyer]

Ok the main reasons I would think then is the gear mesh is tight or the rotors do not have enough pitch. So as suggested us a pitch gauge to check the pitch of the rotors mid stick, bottom and top stick positions but unplug the motor first.

One thing you did plug the motor wire in the correct way round otherwise you would running the blades in reverse?.

Set the gear mesh between the main gear and motor pinon by have a piece of paper between them when you tighten the motor screws then turn the main gear to get the paper out. This will set the gap about right.

[Mutley]

Is the head RPM the same as it was before or faster ?
If either of the above its prob not enough positive pitch.

Make sure all of the ball links have gone back on correctly and the swashplate is correctly connected.