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HelicopterThunder TigerOther › Clutch bell trouble
12-06-2004 04:21 PM  13 years agoPost 1
toolei

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Norway

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Have any of you guys checked the clutch bell in a balancing tool? I checked mine in a magnetic balancer, and found out that it was not 100% "straight" when I spun it around... It`s a brand new bell for a Raptor 50 V2, never used! I guess it should not be like that or what?

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12-06-2004 06:04 PM  13 years agoPost 2
Al Magaloff

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I've check a few, some were good, some not so good. How are you holding it while checking, between centers of the bearings? With pinion or without?

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12-06-2004 08:43 PM  13 years agoPost 3
toolei

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I have tryed with pinoin and without. Have also tryed without any bearings.. Its the bell itself which is not "in track"... Can I still use it or shall I buy a new one? I`m checking it in the magnetic balancer from Top-Flite(?).. I can also see it when it is installed on the starter shaft, even when the engine is fitted..

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12-07-2004 12:57 AM  13 years agoPost 4
Al Magaloff

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I've had them like that. My solution for one, was to true it in the lathe. You may find buying another one to be the answer. Most people use them as they are. Some people have had the bearings and pinions wear out prematurely. This, along with motor alignment, may have something to do with those failures. You may also buy another, and it could be worse than what you have now.

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12-07-2004 10:27 AM  13 years agoPost 5
toolei

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Norway

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I will buy a new one, and use the one that is best Thanks for the help!

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12-07-2004 03:51 PM  13 years agoPost 6
Wa11banger

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Huntsville, Al

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toolei

I had one of the wobblers brand new out of the package that you describe and figured it was bascically balanced just a bit wobbly (untrue) so I used it. It almost cost me my bird and failed on the second flight. It seperated where the bell meets the bearing and threads for the pinion. I will never use one that is a wobbler again

Just my .02
Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

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12-07-2004 05:44 PM  13 years agoPost 7
Al Magaloff

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I agree Rick, the wobblers really can not do anything well. It's important to keep in mind, you can balance something that is not round, but you will end up with a balanced out of round object.

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12-07-2004 07:13 PM  13 years agoPost 8
toolei

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Norway

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I hope the new one won`t wooble then.. Is it possible to fix it in a lathe?

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12-08-2004 12:14 AM  13 years agoPost 9
Al Magaloff

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Yes. I use my own liners, turned true and to size in my lathe. So going around the outside to true the whole bell is no big deal. If the bell is out too far though, you risk thinning areas too much.

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12-08-2004 02:00 AM  13 years agoPost 10
Wa11banger

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Huntsville, Al

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I dont have the equipment to check for out of round.. I misunderstood the problem.. The wobblers I was talking about were the ones that didnt turn true.. Like a front tire on a bike that was just railed up a curb.. Sorry toolei if I misunderstood your problem.. I have received two of my kind of wobblers NIP.. They seem fairly true and round.. but are not spinning true.. sorry I cant think of a way to explain it

Just my .02
Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

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12-08-2004 11:23 AM  13 years agoPost 11
toolei

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Norway

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No problem.. I`m not so good in english so it`s kind of hard do explain this kind of problem
But you can acctually compare my clutch bell with a "crashed" front tire on a bike when I spin it around in my ballancer.
I just hope that the new bell is better than this one! If not, I will have to get the dealer to check it before he sends it to me

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12-09-2004 08:04 AM  13 years agoPost 12
Wa11banger

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Huntsville, Al

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Well since I have had so many of these problems it was thought that maybe they werent coming out of the package like this. So I sent my motor and start shaft into a calibration lab run by fellow RR member RobRoy. Both the crankshaft and the start shaft are in tip top shape.

I do hammer the collective on this bird quite a bit and am now thinking maybe I should learn finess instead of poor throttle management. Also each clutch that failed had been in the ground I was reminded but Although both were relatively hard crashes both were engine killed

Just some more info
Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

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HelicopterThunder TigerOther › Clutch bell trouble
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