Sender: <marv@lancaironline.net>
To:  lml@lancaironline.net
Date: Sat, 23 Feb 2013 13:04:48 -0500
Message-ID: <redirect-6079798@logan.com>
Received-SPF: pass
 receiver=logan.com; client-ip=209.85.220.48; envelope-from=2thman1@gmail.com
References: <list-6078741@logan.com>
In-Reply-To: <list-6078741@logan.com>
Mime-Version: 1.0 (1.0)
Content-Type: text/plain;
	charset=us-ascii
Content-Transfer-Encoding: quoted-printable
From: John Barrett <2thman1@gmail.com>
Subject: Re: [LML] Nose Gear Strut

Hi Angier,

I recommend upgrading to self centering.  I had Lancair do it a couple of ye=
ars ago - not too expensive.  I didn't have them change out the strut with t=
he later model cuz that is expensive.

Have you done the SB for strengthening the weldments on the retract bracket?=
  You should do this and it would be a good time to get the self centering c=
hange also.

Sent from my iPad


On Feb 22, 2013, at 4:34 PM, "Greenbacks, UnLtd." <N4ZQ@verizon.net> wrote:

> At the moment, my focus is intently riveted on my nose gear strut.
> On the 10th landing back at KBVY yesterday, I felt (for the first time), a=
 momentary vibration in my control stick. It was brief, maybe lasting 2 seco=
nds. I have no idea what nose wheel shimmy feels like, perhaps one of you wi=
th experience in this area could elaborate.
> So here's what I've got, my strut dates from 1995 and is not self centerin=
g. I've got 4ZQ up on jacks and and when turning the nose wheel from
> side to side, there is no sound that might indicate air bubbles inside. I d=
o notice that there is greater resistance when turning the wheel to the left=
 as compared to turning to the right. There is some evidence of oil dampness=
 on the strut. I have not yet removed the fork to see if there is any oil po=
oling up inside. At this point, I'm guessing that if this were the case, I w=
ould see it leaking down along the fork. I'm told by Ross at the factory, th=
at the principle cause of nose wheel shimmy is a lack of fork oil, no oil...=
.no dampening, etc.
> So my plan is to release pressure from the strut, check the oil level and c=
ycle the strut up/down until there is no sign of air bubbles. I got some 20 w=
eight fork oil from the local Harley dealer. My plan with the strut extended=
 and full of oil is to collapse the strut, close the valve, set the plane on=
 its nose wheel and re-pressurise the strut, and go fly.
>=20
> I'm all ears for nose strut advice/suggestions.
>=20
> Angier Ames
> N4ZQ
>=20
>=20
>=20
> --
> For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.htm=
l