Converted Twister Bell 47 - PROBLEMS!!

[RichT1969]

Hi,

well, here I am again with another problem on another Heli )

I have a Twister Bell 47 and everytime I touched it I broke a piece off it, so I decided to change the body shell. It turns out it is not that easy so I had to:

1. Change the chassis to a CX2 version
2. Refit all the motors and servos onto the CX2 Chassis
3. Change the swash plate to a CX2 version so it ligned up

I did all the above and it fits well into the new body shell. However, I can just about get it to hover and feel stable but it will not lift off more than a few inches. It is also running down a fully charge LiPo in a round 2 minutes.

My son has a CX2 and the inner and outer shaft seem to run as free as the other one but somnething is wrong. Any ideas?

Thanks in advance


RichT

[cambs flyer]

I hate to say the obvious, but could the problem be the battery mate, have you tried another in it by chance?

[RichT1969]

hi,

thanks for you reply but this was the first thing I have tried. I have tried three batts in the Heli and I still have the same problem.

I would expect the motor to be binding somewhere but it seems free when I spin it by hand ?

RichT

[heliward0]

i would say battery too mate..

[heliward0]

doh you just beat me..

[Boggy]

i know you say the shafts are running free rich but it really does sound like a binding problem.especially if your getting a stable hover. try a little 3in1 oil down through the center shaft and around the swash center. or if you have non spray silicone polish.

[cambs flyer]

GT85 Teflon spray from your local bike shop does a great job, plus it repels dirt and grit.

[RichT1969]

Cheers everyone. I've put some oil on it and ill leave it overnight and try again in the morning. If nothing esle, it looks good )

RichT

[RichT1969]

Latest update - I have tried the oil and a new battery pack but it is still the same. On closer inspection of the outer shaft they may be a very VERY slight kink in it. Its that small I can not be 100% that its even there - could this be my problem?

Cheers


RichT

[fatmantom]

whats the new body shell????

if its an aftermarket body shell could it be that its too heavy for it?

[RichT1969]

Its the Jet Ranger body shell from Leeds Model Shop - it is designed for a CX2, which should be about the same as the Twister Bell.

I did need to change the Chassis and the Swash Plate to fit in the shell though. Its very odd, it seems to fly OK for a few seconds and then justs looses all power and even on full throttle it will only make a few inches off the ground?

[Flybar]

Daft question ? but are the blades going correct rotation ?

Cheers

[RichT1969]

Latest Latest Update - I have now change both motors, both bearings (and refit with plenty of WD40), Inner and Outer shaft, bottom blade holders and guess what, still the same. I get around 10 seconds of what seems like normal flight and then it drops to the ground and stays just a few inches. I have noticed that every time I use the cyclic then moving the servos causes the power to drop even further. I have tgweaked with pots on the 4 in 1 but still the same.

Am I throwing good money after bad on this? I've only had it a few weeks!!

Is it the bin or a new 4 in 1?

Help...............


RichT

[RichT1969]

FLYBAR - only just noticed your respnse. What is the correct rotation? At the moment it is:

TOP - Anti Clockwise
Bottom - Clockwise

Looks about right - what do you think?

[rombonie]

Had a similar problem on my medevac, after changing the motors, checking and double checking everything, I returned to the shop, who were good enough to swap out a 4 in 1 with a bell they use in the shop and you guessed it, of she went like a good'un.

could be your 4 in 1....