Today's Message Index:
----------------------
1. 07:57 AM - Re: Wtb: RV10 project (William Davis)
2. 08:31 AM - Nose gear shimmy (AirMike)
3. 08:50 AM - Re: Nose gear shimmy (Marcus Cooper)
4. 09:55 AM - Re: Nose gear shimmy (Phillip Perry)
Message 1
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| Subject: | Re: Wtb: RV10 project |
Please email me about your projects. Flyhigh77777@gmail.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473098#473098
Message 2
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| Subject: | Nose gear shimmy |
I just started getting some severe nose gear shimmy after 400 hours of flying.
I figured it best to deconstruct my nose gear to bird-dog the problem from the
ground up. I removed the wheel and raised the nose gear off of the ground using
an eye bolt in the floor of my hanger. First off, I am getting a new front
tire that I will balance before I install it.
But as I moved up the gear leg, I noticed that there is about 1/16" of play in
my gear leg in the horizontal axis. This translates to 1/4"of play at the nose
wheel.
There were quite a few posts about under sized bushings in the gear leg attach
point a few years ago, but this is NOT the problem. My gear leg bushings are nice
and tight to the ears of the gear leg. The problem is that the "ears" are
too far from the "hole" on the engine mount. Could this be the problem that is
causing my shimmy? Is there a remedy or should I just forget it, and why did
this not cause a problem before. Has anyone else encountered this issue and how
did you resolve it?
--------
See you OSH '18
Q/B - flying 8 yrs.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=473099#473099
Attachments:
http://forums.matronics.com//files/img_4239_103.jpg
Message 3
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| Subject: | Re: Nose gear shimmy |
Standby for other responses, but probably just need to tighten the nose strut by
adding a shim to the elastomers. That's about the time when they start to compress.
Marcus
> On Sep 23, 2017, at 9:30 AM, AirMike <Mikeabel@Pacbell.net> wrote:
>
>
> I just started getting some severe nose gear shimmy after 400 hours of flying.
I figured it best to deconstruct my nose gear to bird-dog the problem from the
ground up. I removed the wheel and raised the nose gear off of the ground using
an eye bolt in the floor of my hanger. First off, I am getting a new front
tire that I will balance before I install it.
> But as I moved up the gear leg, I noticed that there is about 1/16" of play in
my gear leg in the horizontal axis. This translates to 1/4"of play at the nose
wheel.
> There were quite a few posts about under sized bushings in the gear leg attach
point a few years ago, but this is NOT the problem. My gear leg bushings are
nice and tight to the ears of the gear leg. The problem is that the "ears" are
too far from the "hole" on the engine mount. Could this be the problem that
is causing my shimmy? Is there a remedy or should I just forget it, and why did
this not cause a problem before. Has anyone else encountered this issue and
how did you resolve it?
>
> --------
> See you OSH '18
> Q/B - flying 8 yrs.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=473099#473099
>
>
>
>
> Attachments:
>
> http://forums.matronics.com//files/img_4239_103.jpg
>
>
>
>
>
>
.
Message 4
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| Subject: | Re: Nose gear shimmy |
Interesting. I'm getting ready to dig into mine a bit more because I suspect
a similar issue. Going over a bump or lowering the nose to the runway usually
results in a pretty good thump and my ears tell me there's some slack somewhere
in the system that I need to find.
Regarding the ears, is it possible to ship the gap with washers so the ears fit
tight?
Haven't looked at mine yet.
Phil
Sent from my iPhone
> On Sep 23, 2017, at 10:30 AM, AirMike <Mikeabel@Pacbell.net> wrote:
>
>
> I just started getting some severe nose gear shimmy after 400 hours of flying.
I figured it best to deconstruct my nose gear to bird-dog the problem from the
ground up. I removed the wheel and raised the nose gear off of the ground using
an eye bolt in the floor of my hanger. First off, I am getting a new front
tire that I will balance before I install it.
> But as I moved up the gear leg, I noticed that there is about 1/16" of play in
my gear leg in the horizontal axis. This translates to 1/4"of play at the nose
wheel.
> There were quite a few posts about under sized bushings in the gear leg attach
point a few years ago, but this is NOT the problem. My gear leg bushings are
nice and tight to the ears of the gear leg. The problem is that the "ears" are
too far from the "hole" on the engine mount. Could this be the problem that
is causing my shimmy? Is there a remedy or should I just forget it, and why did
this not cause a problem before. Has anyone else encountered this issue and
how did you resolve it?
>
> --------
> See you OSH '18
> Q/B - flying 8 yrs.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=473099#473099
>
>
>
>
> Attachments:
>
> http://forums.matronics.com//files/img_4239_103.jpg
>
>
>
>
>
>
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