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HelicopterMain Discussion › r50v2 tail vibration
05-31-2004 11:59 AM  13 years agoPost 1
blakka_1

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London/Enfield

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went out to fly my r50 today, noticed a metallic sounding vibration coming from the tail/boom area, no vibration can be seen on the heli, but it can be heard. I landed and checked that all nuts and bolts where tight, made sure nothing was loose. Went back up to fly, the vibration sound was still there. the metalic vibrating sound is definatley coming from the tail or boom area.

got home and checked the heli over, noticed that the material from the belt is "slightly" starting to strip.

could this be the cause of the vibration?

do i need a new belt?

i also noticed i have quite a bit of wear on my pulleys, could this be the cause of the vibration?

do i need new pulleys?

what do you think it could be?

any advise or help would be very much appriciated

thanx

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05-31-2004 12:05 PM  13 years agoPost 2
capebob

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Cape Coral, FL

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Sounds like your belt is either too loose or your belt is not running on the pulleys. The pulleys should last the life of your helicopter and if they ever show wear something is dreadfully wrong. I suspect that your belt is not running over one of the pulleys but along side it, thus causing wear on both the pully and belt.

Bob

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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05-31-2004 12:11 PM  13 years agoPost 3
blakka_1

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London/Enfield

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i will check that my belt is running true on my pulleys. my belt is nice and tight so i dont think its the tension of my belt that is the problem.

thanx for the help capebob

any more advise or help is welcome and will be very much appriciated

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05-31-2004 12:28 PM  13 years agoPost 4
blakka_1

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London/Enfield

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i just checked my belt, it is running on the pulleys properly, everything looks and runs fine in that area

this problem is really confusing me

i cant fly until i find the source of this vibration

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05-31-2004 11:42 PM  13 years agoPost 5
blakka_1

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London/Enfield

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bump

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05-31-2004 11:56 PM  13 years agoPost 6
John Krebs

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Pittsburgh, PA

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Take the tail box apart and makesure the pin that holds the pulley to the tail shaft isn't starting to come out. While you have it apart you can check/grease the bearings.

John

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06-01-2004 03:28 AM  13 years agoPost 7
LannieBaker

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moultrie GA

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heres you fix!

the white guides that hold the pushrod in are probally to far apart and the push rod is vibrating and hittin the boom. space em out evenly put a drop of CA under them and itll probally fix your problem. i have had the same prob. If belt isnt loose then what your seeing on it is just the wear and tear of a normal belt.

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06-01-2004 04:27 AM  13 years agoPost 8
Phranque

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Wherever you go, there you are.

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.
the white guides that hold the pushrod in are probally to far apart and the push rod is vibrating and hittin the boom
This wouldn't cause the tail pulley to be worn, though this can make a lot of noise.
Take the tail box apart and make sure the pin that holds the pulley to the tail shaft isn't starting to come out. While you have it apart you can check/grease the bearings.
Definitely check this pin!!!! Sounds like it has come out and is catching inside the tailbox, causing the tail shaft to drag, thus allowing the belt to drag across the pulley, wearing out both the pulley & belt as you have described. Very bad situation if this locks up! Replace the tail pulley & the retaining pin (it is probably bent), and then make sure you put loctite on that set screw that holds the pin in place (goes into the end of the shaft). Since you're noticing wear on your belt, you will probably want to replace that, too. You can keep that one as an emergency spare if it is not tore up too bad, otherwise, just pitch it.

Flying a heli is like seeing the Matrix, it is a mind bending experience.

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06-01-2004 05:08 AM  13 years agoPost 9
Billy Zimmerman

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Rainier Oregon

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make sure your belt isnt too tight when i was first learning i had my belt too tight and it made the pulleys wear out. you might want to double check the belt tension, it does sound like the pin is out causing that sound good luck with it

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06-01-2004 12:52 PM  13 years agoPost 10
blakka_1

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London/Enfield

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thanx a lot for your help guys, thanx a million , i will try everything you have told me today at the field.

thanx

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HelicopterMain Discussion › r50v2 tail vibration
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