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Shaking Vary Eze when applying brakes at 25kts

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fhu

Joined: 28 Aug 2006
Posts: 3
Location: Zurich

Posted: Thu Oct 03, 2013 6:05 am Post subject: Shaking Vary Eze when applying brakes at 25kts

Hi guys

I have a problem with my Vary Eze. When I apply brakes after landing and speed goes through about 25 kts the whole aircraft starts to shake. It's not quite a shimmy as I think the shaking starting at the main wheels. I tried to film it today but I couldn't see anything yet. I try to post the films later. 

Also my tires are well-worn on the inner side. Maybe it's a wheel alignment issue. 

Any ideas?

Thanks for your help

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_________________
Fabian Hummel - Switzerland

niceez(at)gmail.com
Guest

Posted: Thu Oct 03, 2013 7:54 am Post subject: Shaking Vary Eze when applying brakes at 25kts

It IS the Main gear... This has been covered many times before...



Dale

http://www.long-ez.com

 =====================>





 



On Thu, Oct 3, 2013 at 7:05 AM, fhu <fhu(at)gmx.li (fhu(at)gmx.li)> wrote:

[quote] --> EZ-List message posted by: "fhu" <fhu(at)gmx.li (fhu(at)gmx.li)>

 

 Hi guys

 I have a problem with my Vary Eze. When I apply brakes after landing and speed goes through about 25 kts the whole aircraft starts to shake. It's not quite a shimmy as I think the shaking starting at the main wheels. I tried to film it today but I couldn't see anything yet. I try to post the films later.

  Also my tires are well-worn on the inner side. Maybe it's a wheel alignment issue.

 Any ideas?

 Thanks for your help

 

 --------

 Fabian Hummel - Switzerland

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=409760#409760

 

 

 

 

 Attachments:

 

 http://forums.matronics.com//files/img_4250_120.jpg

 

 

 

 

 ===========

 get="_blank">http://www.matronics.com/Navigator?EZ-List

 ===========

 http://forums.matronics.com

 ===========

 le, List Admin.

 ="_blank">http://www.matronics.com/contribution

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 [b]

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longg(at)pjm.com
Guest

Posted: Thu Oct 03, 2013 8:36 am Post subject: Shaking Vary Eze when applying brakes at 25kts

I’ve had the same issue on my Legacy FG. It’s caused by movement in the vertical leg socket. Lancair sells some very thin spacing material to tighten the gap.  

  

If  you jack up your plane and grab the wheel with both hands you should not be able to move it side to side. 

  

Glenn 

   

From: owner-ez-list-server(at)matronics.com [mailto:owner-ez-list-server(at)matronics.com] On Behalf Of Dale Martin

 Sent: Thursday, October 03, 2013 11:55 AM

 To: ez-list(at)matronics.com

 Subject: Re: Shaking Vary Eze when applying brakes at 25kts 

 

   

It IS the Main gear... This has been covered many times before... 

  

   

Dale

 http://www.long-ez.com

 =====================>

 

 

  

 

   

On Thu, Oct 3, 2013 at 7:05 AM, fhu <fhu(at)gmx.li (fhu(at)gmx.li)> wrote: 

--> EZ-List message posted by: "fhu" <fhu(at)gmx.li (fhu(at)gmx.li)>

 

 Hi guys

 I have a problem with my Vary Eze. When I apply brakes after landing and speed goes through about 25 kts the whole aircraft starts to shake. It's not quite a shimmy as I think the shaking starting at the main wheels. I tried to film it today but I couldn't  see anything yet. I try to post the films later.

 Also my tires are well-worn on the inner side. Maybe it's a wheel alignment issue.

 Any ideas?

 Thanks for your help

 

 --------

 Fabian Hummel - Switzerland

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=409760#409760

 

 

 

 

 Attachments:

 

 http://forums.matronics.com//files/img_4250_120.jpg

 

 

 

 

 ===========

 get="_blank">http://www.matronics.com/Navigator?EZ-List

 ===========

 http://forums.matronics.com

 ===========

 le, List Admin.

 ="_blank">http://www.matronics.com/contribution

 ===========

 

 

  

 

  

  	  Quote: 	
		    	
 ==============[/b][/quote] Z-List Email Forum -[/b][/quote] >[/b][/quote] :p>[/b][/quote] /o:p>[/b][/quote] tor?EZ-List">http://www.matronics.com/Navigator?EZ-List[/b][/quote] ==============[/b][/quote] bsp;    - MATRONICS WEB FORUMS -[/b][/quote] :p>[/b][/quote] tp://forums.matronics.com[/b][/quote] ==============[/b][/quote] bsp;  - List Contribution Web Site -[/b][/quote] e> bsp;           �       -Matt Dralle, List Admin.[/b][/quote] bution">http://www.matronics.com/contribution[/b][/quote] ==============[/b] [b]

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jdubner

Joined: 17 Jul 2012
Posts: 35
Location: Independence, OR

Posted: Thu Oct 03, 2013 9:02 am Post subject: Shaking Vary Eze when applying brakes at 25kts

Fabian,



The MLG attach may be loose as others are telling you but if shimmy only occurs 

during braking at certain speeds, the following will probably apply.  (I 

originally learned this from Gary Hertzler.)



Applying brakes at certain speeds can excite an oscillation in the main gear if 

the brake rotors are warped.  It is virtually indistinguishable from nose wheel 

shimmy.  When the shimmy occurs, release pressure on the brake pedals and see if 

the shimmy stops.



After 1000 hours the Cleveland rotors on my Long-EZ were too thin to true so I 

replaced them.  It made all the difference in the world.  I installed new Rapco 

rotors -- lower cost than the Clevelands.  Of course, your VariEze probably uses 

different brakes.



Nice to see some genuine activity on the Matronics EZ-List instead of the usual 

anarchy on the Yahoo (appropriately named) C-A list 



Best,

Joe

Independence, OR

fhu wrote:

 	  Quote: 	
		   

 

 Hi guys

 I have a problem with my Vary Eze. When I apply brakes after landing and speed goes through about 25 kts the whole aircraft starts to shake. It's not quite a shimmy as I think the shaking starting at the main wheels. I tried to film it today but I couldn't see anything yet. I try to post the films later. 

 Also my tires are well-worn on the inner side. Maybe it's a wheel alignment issue. 

 Any ideas?

 Thanks for your help

 

 --------

 Fabian Hummel - Switzerland

- The Matronics EZ-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?EZ-List

_________________
Independence, OR

niceez(at)gmail.com
Guest

Posted: Thu Oct 03, 2013 9:21 am Post subject: Shaking Vary Eze when applying brakes at 25kts

Glenn,

Wrong airplane your speaking about..� An EZ gear will move back and forth,,�� It should not move fore and aft.� This condition can be caused by brake discs that are not true, a loose main gear, a broken, cracked or damaged gear mount or anything loose in the mounting ears.

 

Dale

http://www.long-ez.com

=====================>





 



On Thu, Oct 3, 2013 at 9:36 AM,  <longg(at)pjm.com (longg(at)pjm.com)> wrote:

[quote]         

I�ve had the same issue on my Legacy FG. It�s caused by movement in the vertical leg socket. Lancair sells some very thin spacing material to tighten the gap.  

� 

If� you jack up your plane and grab the wheel with both hands you should not be able to move it side to side.  

� 

Glenn 

�  

From: owner-ez-list-server(at)matronics.com (owner-ez-list-server(at)matronics.com) [mailto:owner-ez-list-server(at)matronics.com (owner-ez-list-server(at)matronics.com)] On Behalf Of Dale Martin

 Sent: Thursday, October 03, 2013 11:55 AM

 To: ez-list(at)matronics.com (ez-list(at)matronics.com)

 Subject: Re: Shaking Vary Eze when applying brakes at 25kts 

 

�  

It IS the Main gear... This has been covered many times before... 

  

   

Dale

 http://www.long-ez.com

 =====================>

 

 

  

 

�  

On Thu, Oct 3, 2013 at 7:05 AM, fhu <fhu(at)gmx.li (fhu(at)gmx.li)> wrote: 

--> EZ-List message posted by: "fhu" <fhu(at)gmx.li (fhu(at)gmx.li)>

 

 Hi guys

 I have a problem with my Vary Eze. When I apply brakes after landing and speed goes through about 25 kts the whole aircraft starts to shake. It's not quite a shimmy as I think the shaking starting at the main wheels. I tried to film it today but I couldn't  see anything yet. I try to post the films later.

 Also my tires are well-worn on the inner side. Maybe it's a wheel alignment issue.

 Any ideas?

 Thanks for your help

 

 --------

 Fabian Hummel - Switzerland

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=409760#409760

 

 

 

 

 Attachments:

 

 http://forums.matronics.com//files/img_4250_120.jpg

 

 

 

 

 ===========

 get="_blank">http://www.matronics.com/Navigator?EZ-List

 ===========

 http://forums.matronics.com

 ===========

 le, List Admin.

 ="_blank">http://www.matronics.com/contribution

 ===========

 

 

  

 

� 

  	  Quote: 	
		  �� 	
 ============== Z-List Email Forum - > :p> /o:p> tor?EZ-List">http://www.matronics.com/Navigator?EZ-List ============== bsp;��� - MATRONICS WEB FORUMS - :p> tp://forums.matronics.com ============== bsp;� - List Contribution Web Site - e> bsp;������������������ -Matt Dralle, List Admin. bution">http://www.matronics.com/contribution ==============  	  Quote: 	
		  �



t="_blank">http://www.matronics.com/Navigator?EZ-List

tp://forums.matronics.com

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[b]

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fhu

Joined: 28 Aug 2006
Posts: 3
Location: Zurich

Posted: Fri Oct 04, 2013 9:29 am Post subject: Re: Shaking Vary Eze when applying brakes at 25kts

Hei



Thanks a lot for the tips! as my Eze is hanging on the hangar roof anyway I will check if anything is loose tomorrow. I also check when we had the brakes replaced! 

Here 's the link for the video. Unfortunately you just see it shaking but not why. 

http://youtu.be/j3j4QQKElAE



Thank you very much for replying. To be honest I didn't expect it as this forums seemed dead  I was in the eMail list as well, but too many eMails all day... 

I'll keep you up to date after tomorrow

cheerio

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_________________
Fabian Hummel - Switzerland

fhu

Joined: 28 Aug 2006
Posts: 3
Location: Zurich

Posted: Mon Oct 21, 2013 3:37 am Post subject: Re: Shaking Vary Eze when applying brakes at 25kts

Hello Everybody



I just want to tell you that I could solve the problem! As Joe suggested I put some new brake rotors on. I also used Rapco (06-00618 RAPCO BRAKE DISC

RA164-01700) Rotors to replace the old Cleveland Discs. The first Taxi Tests worked great, unfortunately the weather wasn't good enough for a flight 



Thanks everybody for your help

Best regards from Switzerland

Fabian

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_________________
Fabian Hummel - Switzerland

niceez(at)gmail.com
Guest

Posted: Mon Oct 21, 2013 7:50 am Post subject: Shaking Vary Eze when applying brakes at 25kts

Great News,,,� Had a chance to see those rotors on another VEZ,,,�� Very nice compared to Clevelands.



Dale

http://www.long-ez.com

 =====================>

"The democracy will cease to exist when you take away from those who are  

willing to work and give to those who would not."�� - Thomas Jefferson 





 



On Mon, Oct 21, 2013 at 4:37 AM, fhu <fhu(at)gmx.li (fhu(at)gmx.li)> wrote:

[quote] --> EZ-List message posted by: "fhu" <fhu(at)gmx.li (fhu(at)gmx.li)>

 

 Hello Everybody

 

 I just want to tell you that I could solve the problem! As Joe suggested I put some new brake rotors on. I also used Rapco (06-00618 RAPCO BRAKE DISC

 RA164-01700) Rotors to replace the old Cleveland Discs. The first Taxi Tests worked great, unfortunately the weather wasn't good enough for a flight 

 

 Thanks everybody for your help

 Best regards from Switzerland

 Fabian

 

 --------

 Fabian Hummel - Switzerland

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=410986#410986

 

 

 

 

 

 

 

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 get="_blank">http://www.matronics.com/Navigator?EZ-List

 ===========

 http://forums.matronics.com

 ===========

 le, List Admin.

 ="_blank">http://www.matronics.com/contribution

 ===========

 

 

 

 [b]

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