My strut was from 89-90 era. I decided that with all the $$ I had riding on the nose I would bite the bullet and send it in to Lancair and have it upgraded and the self centering installed.I think they charged me $ 800. I would have done it myself if I could have gotten directions and the parts but was told they did not sell the parts. This was just over a year ago. To date I have 160+ tt with no problems. Most of that time is high alt landing above 5000' which is higher ground speeds. Back in the 80's I personally flew Dave Morris and the busted off 235 nose gear back to Lance at Oskosh after a nose gear shimmy during pactice runs for the Oskosh 500 race in my KR2.
-----Original Message-----
From: Greenbacks,UnLtd. <N4ZQ@verizon.net>
To: List Lancair Mailing <lml@lancaironline.net>
Sent: Sat, Feb 23, 2013 3:32 pm
Subject: [LML] Re: Nose Gear Strut
I removed the fork this morning and inspected the strut which was dry inside.
Bled off the pressure and removed the little valve stem piece thingy, collapsed
the strut and no oil came out.
I added a bit more than 1oz of fork oil which was just enough to have the oil
flow from the valve with the strut collapsed.
Worked the nose wheel side to side and could hear some air inside so kept doing
this as well as collapsing/extending the strut. After a while, no air bubbles
could be heard. But I have one observation and don't know if it's normal or not
since I don't know how the dampening is accomplished inside. With the wheel
centered or in any other position right or left, I can move the wheel perhaps a
degree or two either side and don't feel as much dampening as I do when turning
the wheel further left or right. Seems like a dead or null zone either side of
where the wheel is positioned. I'll check again in the morning and then
pressurize the strut and then see how it feels.
My tire pressures are 60 on the mains and 55 on the nose as recommended by a
well known Lancair GURU...
Thorough inspection of the engine mount shows all normal and wheel bearings are
correctly loaded.
Angier Ames
N4ZQ
--
For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html