FYI, I resolved the shimmy in my double fork nose wheel by replacing and tightening the "bolt" in the scissors assembly.
Good Luck Greg Plantz NC99902 > ---------- > From: David & Carolyn[SMTP:[EMAIL PROTECTED] > Sent: Tuesday, September 01, 1998 11:54 AM > To: [EMAIL PROTECTED] > Subject: Shimmey - shimmey > > Coupers: > > I don't have shimmey in my Alon. I did in a Cesssna which has similar > linkages. All components of the steering system have to be tighter > than > you think. Grasp the nosewheel with both hands and try to "steer" it. > Watch the linkage for any movement. If you can move the wheel at all, > even > a 1/16" at the tire, it is too much. Possibly: > (1) Some component is worn out. > (2) Something is assembled incorrectly. > (3) Shiming of a joint is required. > > If holding steering pressure stops the shimmey, this suggests a loose > component. Tire pressure doesn't seem to be very critical in my > 'coupe. > The book says 17psi in the nosewheel. > > Grasp the tire top and bottom and try to move it. Any movement at all > suggests a worn wheel bearing or bad axle component. > > David Smoler > Alon A-35 > N6359V > > > At 09:10 AM 9/1/98 -0400, Jerry Eichenberger wrote: > >We had the same problem last Jan. when we got our coupe. It shimmied > only > after landing, during rollout, well below landing speed, and steering > to > the right stopped the shimmy. > >We cured it be replacing the bolt in the scissors. If this doesn't > work > for you, see if the bolt hole has elongated so that the bolt doesn't > make a > tight fit. If all else is OK, that may be the problem. Generally, if > a > tire is out of balance, the problem should be worse as speed > increases, not > as it decreases as was the case with our plane. We too have the dual > fork. > >Jerry Eichenberger > >Columbus, Ohio > >N2906H > > > >>>> Jim <[EMAIL PROTECTED]> 09/01/98 08:12AM >>> > >I too have the shimmey problem and at times it is quite violent. I > >disagree that the problem is landing speed though as my shimmey > happens > >at generally 40 to 45, well below landing or any flying speed. I will > >concede that the balance may be off as I have not balanced it. The > only > >way I found to stop the shimmey is to steer slightly right just after > it > >happens and it goes away. You are correct that it seems to happen at > >only one general speed. > >I also thought it might have to do with a general looseness in the > >steering linkage from control wheel to nose wheel. What do ya think? > >Jim Powell > >N99068 S/N 1691 > >Midland, MI > > > > > > > > > > > > > > > ! > >! > >! > > > > > > > > >
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