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dlm46007(at)cox.net
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 Posted: Thu Dec 03, 2009 9:53 am Post subject: nose wheel |
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Just a reminder to the new builders. The nose wheel and axle as supplied by Van's is , the opinion of many, inadequate. First the nose wheel is a MATCO wheel that is common to the other RVs and causes the tire to be mounted so that the valve stem for the tube is within .125 inch of the fork and that's without valve cap. An alternative wheel is available from MATCO (exchange if new and unmounted) which solves the valve stem clearance problem.
Secondly the manner in which the axle and stainless steel sleeves are used to hold the bearings in place works for 100 hours (maybe) . After that time the whole mechanism loosens and the sleeves start to rotate and score the aluminum fork. The nose wheel then has side to side wobble on the bearings. If this continues the bearings and races wear prematurely. The solution is to not install he Vans nose wheel and sleeve arrangement. MATCO supplies an axle, and spacers and hardware to solve this problem. Order the axle kit to solve this.
This is a pay me now or pay me later proposition The cost or a new MATCO wheel is about $130, a new Van's fork is about $200, new wheel bearings are about $40, and a MATCO axle kit is about $75. If the SS sleeves rotate, they will over time cause wheel wobble which can cause the valve stem to strike the fork and cause a flat ire. The wobble will destroy the bearings and seal. The sleeves will score the fork beyond serviceable limits.
The reason for this post: I just talked with the IA at a maintenance faculty where a second owner RV10 was squawked for excessive nose wheel shimmy. Another faculty had just passed the aircraft on an annual without fixing the nose wheel. The problem is going to cost the present owner $250-$450 plus labor. Suggest doing this right the first time.
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| | - The Matronics RV10-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:
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Strasnuts
Joined: 10 Feb 2009
Posts: 502
Location: Salt Lake City, UT
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| Posted: Thu Dec 03, 2009 10:03 am Post subject: nose wheel |
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Ya, I wish I would have known this!! I mounted mine a couple of weeks ago and now I have a valve stem that's too long. I called Van's and they said to push it in while filling the tire and then went on to tell me to leave the valve stem cap off!! REALLY! I like Van's way of staying simple and cheap BUT some items really need to be changed.
[quote] ---
| | - The Matronics RV10-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?RV10-List |
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_________________
40936
RV-10 SB N801VR Flying
780 Hours
SuperSTOL 60 hours |
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msausen
Joined: 25 Oct 2007
Posts: 559
Location: Appleton, WI USA
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| Posted: Thu Dec 03, 2009 10:09 am Post subject: nose wheel |
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I actually did the MATCO solution a couple weeks back. Very nice and seems much more robust in addition to addressing the issue around the preload.
Michael
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of David McNeill
Sent: Thursday, December 03, 2009 12:52 PM
To: rv10-list(at)matronics.com
Subject: nose wheel
Just a reminder to the new builders. The nose wheel and axle as supplied by Van's is , the opinion of many, inadequate. First the nose wheel is a MATCO wheel that is common to the other RVs and causes the tire to be mounted so that the valve stem for the tube is within .125 inch of the fork and that's without valve cap. An alternative wheel is available from MATCO (exchange if new and unmounted) which solves the valve stem clearance problem.
Secondly the manner in which the axle and stainless steel sleeves are used to hold the bearings in place works for 100 hours (maybe) . After that time the whole mechanism loosens and the sleeves start to rotate and score the aluminum fork. The nose wheel then has side to side wobble on the bearings. If this continues the bearings and races wear prematurely. The solution is to not install he Vans nose wheel and sleeve arrangement. MATCO supplies an axle, and spacers and hardware to solve this problem. Order the axle kit to solve this.
This is a pay me now or pay me later proposition The cost or a new MATCO wheel is about $130, a new Van's fork is about $200, new wheel bearings are about $40, and a MATCO axle kit is about $75. If the SS sleeves rotate, they will over time cause wheel wobble which can cause the valve stem to strike the fork and cause a flat ire. The wobble will destroy the bearings and seal. The sleeves will score the fork beyond serviceable limits.
The reason for this post: I just talked with the IA at a maintenance faculty where a second owner RV10 was squawked for excessive nose wheel shimmy. Another faculty had just passed the aircraft on an annual without fixing the nose wheel. The problem is going to cost the present owner $250-$450 plus labor. Suggest doing this right the first time.
| Quote: | | [b]www.aeroelectric.comwww.buildersbooks.com |
012345678901234567
[quote][b]
| | - The Matronics RV10-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?RV10-List |
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Bob Turner
Joined: 03 Jan 2009
Posts: 885
Location: Castro Valley, CA
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| Posted: Thu Dec 03, 2009 11:47 am Post subject: Re: nose wheel |
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Just a quick "thank you" to the posters on this site, and to Matt for running it. Thanks to all of you (and a previous post on this subject) I was able to delete this wheel and axle from the kit, and order the better ones directly from Matco, for very little net extra cost.
| | - The Matronics RV10-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?RV10-List |
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Bob Turner
RV-10 QB |
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travilleh(at)yahoo.com
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| Posted: Thu Dec 03, 2009 1:29 pm Post subject: nose wheel |
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Can you please tell me the matco product number or name for the axle kit?
From: Seano <sean(at)braunandco.com>
To: rv10-list(at)matronics.com
Sent: Thu, December 3, 2009 1:02:05 PM
Subject: Re: nose wheel
Ya, I wish I would have known this!! I mounted mine a couple of weeks ago and now I have a valve stem that's too long. I called Van's and they said to push it in while filling the tire and then went on to tell me to leave the valve stem cap off!! REALLY! I like Van's way of staying simple and cheap BUT some items really need to be changed.
[quote] ---
| | - The Matronics RV10-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?RV10-List |
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Lew Gallagher
Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC
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| Posted: Thu Dec 03, 2009 1:44 pm Post subject: nose wheel |
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Here's the axel:
http://www.matcomfg.com/AXLEASSEMBLYA24125INCH_idv_3657_1.html
Later, - Lew
[quote] ---
| | - The Matronics RV10-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?RV10-List |
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_________________
non-pilot
crazy about building
NOW OFICIALLY BUILDER #40549
Fly off completed ! |
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dlm46007(at)cox.net
Guest
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| Posted: Thu Dec 03, 2009 3:15 pm Post subject: nose wheel |
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call MATCO and ask for tech support; they know.
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Traville Houston
Sent: Thursday, December 03, 2009 2:26 PM
To: rv10-list(at)matronics.com
Subject: Re: nose wheel
Can you please tell me the matco product number or name for the axle kit?
From: Seano <sean(at)braunandco.com>
To: rv10-list(at)matronics.com
Sent: Thu, December 3, 2009 1:02:05 PM
Subject: Re: nose wheel
Ya, I wish I would have known this!! I mounted mine a couple of weeks ago and now I have a valve stem that's too long. I called Van's and they said to push it in while filling the tire and then went on to tell me to leave the valve stem cap off!! REALLY! I like Van's way of staying simple and cheap BUT some items really need to be changed.
[quote] ---
| | - The Matronics RV10-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?RV10-List |
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