Today's Message Index:
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1. 06:50 PM - Re: Re: Glasair-List Digest: 6 Msgs - 04/01/04 (J. Oberst)
2. 08:42 PM - Re: Re: Glasair-List Digest: 6 Msgs - 04/01/04 (N16cd@aol.com)
Message 1
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| Subject: | Re: Glasair-List Digest: 6 Msgs - 04/01/04 |
--> Glasair-List message posted by: "J. Oberst" <joberst@cox-internet.com>
Ditto. I am still "tuning" the tension on my nosewheel nut. When I tighten
it enough to avoid shimmy altogether, it taxis like a drunken sailor.
Jim Oberst
Super II FT
----- Original Message -----
From: <MPPalmer@aol.com>
Subject: Glasair-List: Re: Glasair-List Digest: 6 Msgs - 04/01/04
> --> Glasair-List message posted by: MPPalmer@aol.com
>
> Welcome to the club. Friction pad can become oil soaked from runoff from
the
> engine down the strut. I wrote in the old GlasairNews about a little
> aluminum piece I epoxied on the strut to make the drips fall aft of the
friction pad.
> No wait, I think S/H published it in a SB release with my idea.
>
> In the old Newses, the factory mentioned that geometry played a big role
with
> shimmy. When the nose gear shock absorbers begin to sag, the geometry on
the
> front pivot changes to resemble a grocery cart gone bad. Have to shim up
the
> shocks, or better yet, change over to the new shocks that aren't as
> susceptible to oil soak and collapse. Hard to describe n words, but you
want the
> bottom of the pivot to be more aft than the top of the pivot.
>
> After 1000 hours, I replaced the long bolt in the nose gear trunnion along
> with the bushings. The bolt had begun to neck down. Really, there's not
enough
> contact area with those dinky bushings in the nose gear upper pivot. The
> better solution would be a long sleeve bushing that runs the length of the
tube
> to distribute the forces. The slightest play up there is magnified
> tremendously as side to side play down at the nose wheel.
>
> I suspect wheel balance too. I replaced our tire with new from Spruce,
did
> the red dot thing and had occasionally shimmy. My easy soln was to just
> tighten the friction pad more, but the better soln would probably have
been to move
> the dot around to find a better balance.
>
> We had shimmy once so bad that I had to fix some fiberglass on the
fairing.
> Those front bolts on the fairing also bend easily during shimmy, so check
and
> replace as necessary.
>
> Hope this helps,
>
> Mike Palmer <><
> Excellence in Ergonomics
>
> > I am checking the gear and mountings for integrity, and I will remove
> > the front wheel pant and check the main bolt etc. I am also toying
> > with ideas to add dampening.
> >
> > Has anyone experienced this? Solutions?
>
>
Message 2
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| Subject: | Re: Glasair-List Digest: 6 Msgs - 04/01/04 |
--> Glasair-List message posted by: N16cd@aol.com
Sounds like it's a little to tight.
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