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HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › Tail Drive Gear Wobble?
07-12-2008 02:21 PM  9 years agoPost 1
rooter

rrNovice

Wheeling,WV USA

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Hi Everyone, I have an issue with the Main Drive Gear Assembly page 9 in the manual. I have the bird together and hovered it a few times and I was looking it over to see if I had the head wobble issue when I noticed the Tail Drive Gear wobbling on the main shaft. After closer inspection I am seeing the Tail Drive Gear Housing see-sawing on the the jesus bolt that goes through the tail drive gear housing then the autorotation shaft then through the main shaft. I noticed the autorotation shaft fits the main shaft good, The slop is between the tail drive gear housing and autorotion shaft. Has anyone else seen this?
Horizon is awsome, They are sending me a new autorotation shaft and tail drive gear housing to try. "Align never does this, they would not even return an email to my buddies problem". I will post my findings when the new parts show up. I am not sure if this is the same problem Tony was having when he tightened up his bolt too tight and caused the autorotation bearing to lock up? Thanks for any info in advance. Doug

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07-12-2008 04:11 PM  9 years agoPost 2
tchavei

rrProfessor

Portugal

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The wobble is normal. I have it too. When I removed it (by tightening the lower jesus bolt and line up the housing) it made the one way lock 4 flights later.

Now I don't bother. I just let it wooble. It straitens out itself if the jesus bolt isn't too tight anyway.

Tony


--------------------
"Perfection and patience usually walk side by side..."

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07-13-2008 04:22 AM  9 years agoPost 3
rooter

rrNovice

Wheeling,WV USA

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Thanks Tony, Glad to here its normal. Hope its no problem in the future as mine looks pretty loose. Doug

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07-28-2008 10:51 AM  9 years agoPost 4
jadams

rrKey Veteran

East coast USA

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I have the same movement. I put some green loctite on the sleeve to hold it in place. I will post when it is dry and reassembled.

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07-28-2008 12:56 PM  9 years agoPost 5
jadams

rrKey Veteran

East coast USA

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The green locktite seems to have held the autorotation shaft into the tail drive gear housing. I put the locktite on the shaft and the gear housing then used the bolt to hold it in the correct position. Once it was dry I reassembled the unit. This will hopefully solve the issue if JR does not come out with a fix.

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08-02-2008 03:56 PM  9 years agoPost 6
flyingrhino

rrApprentice

Greenwood, IN - USA

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Has anyone measured the amount of "wobble" they have? I have just a few flights on mine and didn't notice any problems in the first couple flight just hovering and adjusting head speed. However, when I went to forward flight I heard a clicking noise when I would load the tail. I have so much wobble in the tail gear (.030) that the gear is clipping the magnets on the clutch bell as it wobbles. I can't for the live of me figure out why this much wobble would be "normal".

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08-02-2008 04:25 PM  9 years agoPost 7
tchavei

rrProfessor

Portugal

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you could use a couple of setscrews to hold the lower casing to the one way sleeve. I heard someone doing that with good results. This wouldn't damage the internal structure like tightening down the 4mm jesus bolt

Tony


--------------------
"Perfection and patience usually walk side by side..."

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08-03-2008 03:40 AM  9 years agoPost 8
jadams

rrKey Veteran

East coast USA

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So far the locktite is holding great. NO movement in the gear, no strange noise, gear mesh is right on and this vibe kicks ass.

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11-30-2008 10:07 PM  8 years agoPost 9
behemoth

rrNovice

Gloucestershire - UK

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I now have a Vibe50 and have this "wobble" as well.

As the last post on this was some time ago, is this still "normal" and most are flying with some wobble?

It seems odd that the gears have this wobble!

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11-30-2008 10:23 PM  8 years agoPost 10
tim deakin

rrVeteran

gloucestershire uk

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I have had lots of heli's where the mainshaft 'rotates' slighty on the jesus bolt.Its nothing to worry about as it does not affect anything.

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11-30-2008 10:38 PM  8 years agoPost 11
tim deakin

rrVeteran

gloucestershire uk

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i must admit that i'd prefer it if it didnt rotate like it does.

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HelicopterJR Heli Vibe 90/50, Sylphide 90, GSR260 › Tail Drive Gear Wobble?
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