Register Now

Altec · 11-20-2011, 06:58 PM

Hi all, 1st build on an Outrage 90, not a bad build. My problem is it would seem the main gear with the one way hub has the ablility to slide down towards the tail gear. I started to hear this odd noise on it's madien and found this...I've attached a few pics to try and show the problem. Any tips would be great as to why this does this?

Thanks guys.

ebulahan · 11-20-2011, 07:44 PM

If I am right, the bearing in the hub slipped out in your case (see pic 1 for the right one).
The lower bearing block can be adjusted up & downwards. In my case, it needed to be at its highest position to eliminate any play of the main & drive gears, and to ensure that the bearing seats in the hub completely. (see pic 2)
After you rebuild it, I bevlieve you will find that the main gear & pinion are at the same level (see pic 3)
Hope this helps.
Stanley

Altec · 11-20-2011, 07:52 PM

I though it was because the lower bearing block moved down as well however I did not have any up and down play on the main shaft. The one way sleeve was tight between both blocks but it looks like there is nothing to prevent the hub from sliding down on the sleeve..

ebulahan · 11-20-2011, 08:59 PM

It is because the bearing does not seat in the one way hub completely. Take out the bearing and see if there is something inside the hub preventing the correct assembly. Then put the bearing back into the hub. The internal diameter of the hub could be little bigger than the bearing's outer diameter, which could make it hard to put them together. Do not use hammer or you might not get the bearing out again...

Altec · 11-20-2011, 09:30 PM

I can push the bearing back in fine and in doing so moves the main gear back where it's supose to be. It will all sit flush and everything is perfect. However once the heli hovers for a few min it slides back down on its own.

ebulahan · 11-20-2011, 09:44 PM

Uh, it shouldn't be like that. Did you have the main shaft bearing blocks wrong facing? The middle bearing block should face down and the lower block should face up.

Altec · 11-20-2011, 09:48 PM

Yip I checked 3 times. The one way sleeve fits perfect in-between both bearing blocks and has no lateral play.

ebulahan · 11-20-2011, 09:57 PM

I will have a look at mine when I go home and see if there is someway to sort it.

ebulahan · 11-21-2011, 02:53 AM

After checking mine, I am guessing the problem is your hub. Normally, the shoulder of drive gear (pic 1) should withstand the hub bearing (pic 2), thus the hub cannot slide down on the sleeve. Is there anything missing in the hub? I've encountered some parts assembled by factory that accidently missed something.

Altec · 11-21-2011, 08:22 PM

I made a video...better shows what's going on. And nope, checked several times for missing parts.

[ame]http://www.youtube.com/watch?v=twDsmF3TPCI[/ame]

skinart76 · 11-21-2011, 10:55 PM

Can't you just Loctite that top bearing into place?

Altec · 11-22-2011, 05:23 AM

That's what I'm leaning towards...but not sure if that would be a proper fix.

ebulahan · 11-22-2011, 08:13 AM

Quote:

Originally Posted by Altec

I made a video...better shows what's going on. And nope, checked several times for missing parts.

http://www.youtube.com/watch?v=twDsmF3TPCI

Uh sorry to inform you that YouTube has been blocked and banned here in China for some political reasons...But I understand what the problem is.

Quote:

Originally Posted by skinart76

Can't you just Loctite that top bearing into place?

It should be the solution. At the very begninning I thought that some part like washer or bearing were missing in the hub because I belived that those parts completely filled up the inside of the hub to prevent the slide. But I was wrong. Based on my inspection, the part that keeps the distance between main and drive gear is the LOWER BEARING in the hub. As the shoulder of drive gear withstands the lower bearing, the main gear cannot slide down towards the drive gear. So basically, as long as the lower bearing is fixed by CA, problem will be solved. To be more safe, CA the upper bearing in the hub as well.

Altec · 11-22-2011, 03:14 PM

Heres a link to the vid in case you wanted to see it... http://ededicatedplus.com/gear/

Yes I looked at again last night and I would have to CA the bottom and top bearing in place to prevent the one-way hub from sliding down. I just find it odd (that I can see) that I'm the only one with this problem.

ebulahan · 11-23-2011, 12:35 AM

I've seen the vid and the problem is the same as what I thought. I am glad that the solution was found out finally. Good luck and happy flying.
Cheers

Altec · 11-26-2011, 03:43 PM

Well I got 3 flights on her now, got the v-bar dialed in and man she flies great. I did use bearing thread lock on both the upper and lower bearing of the one way hub. So far so good, no movement. Thanks for help

skinart76 · 11-27-2011, 06:22 PM

Nice! Glad it's worked out.

11-20-2011, 06:58 PM	#1 (permalink)
Altec Registered Users Join Date: Feb 2009	Main gear issue Hi all, 1st build on an Outrage 90, not a bad build. My problem is it would seem the main gear with the one way hub has the ablility to slide down towards the tail gear. I started to hear this odd noise on it's madien and found this...I've attached a few pics to try and show the problem. Any tips would be great as to why this does this? Thanks guys. Attached Thumbnails __________________ -you can't FIX stupid- AMA# 935732

11-20-2011, 07:44 PM	#2 (permalink)
ebulahan Registered Users Join Date: Oct 2011	If I am right, the bearing in the hub slipped out in your case (see pic 1 for the right one). The lower bearing block can be adjusted up & downwards. In my case, it needed to be at its highest position to eliminate any play of the main & drive gears, and to ensure that the bearing seats in the hub completely. (see pic 2) After you rebuild it, I bevlieve you will find that the main gear & pinion are at the same level (see pic 3) Hope this helps. Stanley Attached Thumbnails

11-20-2011, 07:52 PM	#3 (permalink)
Altec Registered Users Thread Starter Join Date: Feb 2009	I though it was because the lower bearing block moved down as well however I did not have any up and down play on the main shaft. The one way sleeve was tight between both blocks but it looks like there is nothing to prevent the hub from sliding down on the sleeve.. __________________ -you can't FIX stupid- AMA# 935732

11-20-2011, 09:30 PM	#5 (permalink)
Altec Registered Users Thread Starter Join Date: Feb 2009	I can push the bearing back in fine and in doing so moves the main gear back where it's supose to be. It will all sit flush and everything is perfect. However once the heli hovers for a few min it slides back down on its own. __________________ -you can't FIX stupid- AMA# 935732

11-20-2011, 09:48 PM	#7 (permalink)
Altec Registered Users Thread Starter Join Date: Feb 2009	Yip I checked 3 times. The one way sleeve fits perfect in-between both bearing blocks and has no lateral play. __________________ -you can't FIX stupid- AMA# 935732

11-20-2011, 08:59 PM	#4 (permalink)
ebulahan Registered Users Join Date: Oct 2011	It is because the bearing does not seat in the one way hub completely. Take out the bearing and see if there is something inside the hub preventing the correct assembly. Then put the bearing back into the hub. The internal diameter of the hub could be little bigger than the bearing's outer diameter, which could make it hard to put them together. Do not use hammer or you might not get the bearing out again...

11-20-2011, 09:44 PM	#6 (permalink)
ebulahan Registered Users Join Date: Oct 2011	Uh, it shouldn't be like that. Did you have the main shaft bearing blocks wrong facing? The middle bearing block should face down and the lower block should face up.

11-20-2011, 09:57 PM	#8 (permalink)
ebulahan Registered Users Join Date: Oct 2011	I will have a look at mine when I go home and see if there is someway to sort it. Last edited by ebulahan; 11-21-2011 at 05:21 PM..

11-21-2011, 02:53 AM	#9 (permalink)
ebulahan Registered Users Join Date: Oct 2011	After checking mine, I am guessing the problem is your hub. Normally, the shoulder of drive gear (pic 1) should withstand the hub bearing (pic 2), thus the hub cannot slide down on the sleeve. Is there anything missing in the hub? I've encountered some parts assembled by factory that accidently missed something. Attached Thumbnails

11-21-2011, 08:22 PM	#10 (permalink)
Altec Registered Users Thread Starter Join Date: Feb 2009	I made a video...better shows what's going on. And nope, checked several times for missing parts. [ame]http://www.youtube.com/watch?v=twDsmF3TPCI[/ame] __________________ -you can't FIX stupid- AMA# 935732

11-21-2011, 10:55 PM	#11 (permalink)
skinart76 Registered Users Join Date: Apr 2010	Can't you just Loctite that top bearing into place?

11-22-2011, 05:23 AM	#12 (permalink)
Altec Registered Users Thread Starter Join Date: Feb 2009	That's what I'm leaning towards...but not sure if that would be a proper fix. __________________ -you can't FIX stupid- AMA# 935732

11-22-2011, 03:14 PM	#14 (permalink)
Altec Registered Users Thread Starter Join Date: Feb 2009	Heres a link to the vid in case you wanted to see it... http://ededicatedplus.com/gear/ Yes I looked at again last night and I would have to CA the bottom and top bearing in place to prevent the one-way hub from sliding down. I just find it odd (that I can see) that I'm the only one with this problem. __________________ -you can't FIX stupid- AMA# 935732

11-23-2011, 12:35 AM	#15 (permalink)
ebulahan Registered Users Join Date: Oct 2011	I've seen the vid and the problem is the same as what I thought. I am glad that the solution was found out finally. Good luck and happy flying. Cheers

11-26-2011, 03:43 PM	#16 (permalink)
Altec Registered Users Thread Starter Join Date: Feb 2009	Well I got 3 flights on her now, got the v-bar dialed in and man she flies great. I did use bearing thread lock on both the upper and lower bearing of the one way hub. So far so good, no movement. Thanks for help __________________ -you can't FIX stupid- AMA# 935732

11-27-2011, 06:22 PM	#17 (permalink)
skinart76 Registered Users Join Date: Apr 2010	Nice! Glad it's worked out.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Register Now

Log-in