yawing like crazy

[Mastee]

My medevac is rotating like crazy to the left. I did not crash, and nothing looks broken... can this only mean that one of the motors are broken?

[fatmantom]

have you checked every thing posted in your previous thread?

[Mastee]

have you checked every thing posted in your previous thread?

my last thread was about shaking?

[fatmantom]

lol yer sorry im getting all confused. have you checked the grub screw at the bottom (under the cog) is tight and not slipping atall?

[Mastee]

lol yer sorry im getting all confused. have you checked the grub screw at the bottom (under the cog) is tight and not slipping atall?

I'll try to take everything appart and screw it back together... it makes a different sound now by the way..

[Kwickkwack]

if the noise is very mechanical, check the motors, if a motor is shot and earths out, it will blow the contoller, (trust me I know).
You have been warned lol

[Mastee]

lol yer sorry im getting all confused. have you checked the grub screw at the bottom (under the cog) is tight and not slipping atall?

now I have tightenedeverything, but it still rotates... and makes a weird sound

[Mastee]

if the noise is very mechanical, check the motors, if a motor is shot and earths out, it will blow the contoller, (trust me I know).
You have been warned lol

is there anything I can do with the motors? other than buyin a new one of course (what do you mean with "blow the controller"?)

[heliward0]

i had a motor go down and it took out the 4IN1 TOO!!!!not funny,,

[Mastee]

i had a motor go down and it took out the 4IN1 TOO!!!!not funny,,

but can it be te 4in1? both motors are rotating, and the sound change is only that it has a higer pitch

[heliward0]

http://www.flyingsites.co.uk/howto/b...oubleshoot.htm try looking on here for help.

[heliward0]

or set your proportional screw level with the boom (ie horozontal) it may of moved?? set it with the power on then disconnect the battery and then reconnect it,, check that the gyro is about 90% too.. see your manual under PRE-FLIGHT CHECKS 4in1,,and is your battery fully charged or low???

[fatmantom]

is it a squeeky noise that goes on and off or is it constantly high

[SRH990]

If the Medevac has had a few knocks the top rotor hub can loosen on its shaft causing it to slip, this will give the symptoms you have, as will a knackered motor, they sometimes seem to have short lives.

[Mastee]

havent touched my broken medevac for a while now bevause of exam period, but now I feel the urge to fly again.

as I posted earlier the heli is yawing like crazy, and when I try to turn the engines, it feels like there is less resistanse in the motor that turns the top blades. (heli yaws to the left)
Is this a good symptom for a broken motor? Is it possible to open the engine and do something? I have a soldering iron and som skils, but never opened an electric motor before.

Martin