I just "knew" that putting a forked front wheel on my Coupe would solve my shimmy problems after we could not find any loosness. We put new bearings in also. Sadly it didn't seem to make any difference.
What did make a big difference was a good tire balance, proper inflation and pilot training. The 75 inch tail heigth keeps the plane on the ground. I had trained in a "tail low" Coupe and when I bought one with the 75 inch tail heigth I tended to put some foreward pressure on the control. This put more weight on the front tire and caused some shimmy. Keeping the control in more or less a neutral position works for me. Mike @C35 --- In [email protected], Hartmut Beil <[EMAIL PROTECTED]> wrote: > > Thurman. > > Roy is right. The main cause of nose wheel shimmy is the looseness in the linkages from the steering column to the nose wheel. > Any bolt or bearing loose there is a problem. > > That means the scissor bolts should be tight, the Heim bearing in the steering pushrod is to be tight, and even the steering collar should not move up and down on the nose strut. > > Any wear adds up and leads to the shimmy. > > Also make sure that the tire is inflated between 16-18 lbs . A too stiff tire vibrates much easier and a too soft tire can not guide the wheel as good and may lead to shimmy as well. > > > > Hartmut > > > To: [EMAIL PROTECTED]; [EMAIL PROTECTED]: [EMAIL PROTECTED]: Fri, 21 Dec 2007 09:15:40 -0500Subject: RE: [ercoupe-tech] nose wheel > > > > > > > May not be applicable to your problem, but when I experienced nose gear vibration (bad) it turned out that the bolt/nut on the bottom of the `nut-cracker' was loose. > > Roy > > > > > > From: [email protected] [mailto:ercoupe- [EMAIL PROTECTED] On Behalf Of Thurman PangburnSent: Friday, December 21, 2007 7:36 AMTo: [EMAIL PROTECTED]: [ercoupe-tech] nose wheelImportance: Low > > > > > GroupI am a new a owner of a 415C. It was just deliverd yesterday. It came with a fresh annual in which the nose gear bearing was replaced. It still has a great deal of wobble and is very annoying landing and taking off. Aircraft is located in Port Charlotte, Florida. I am seeking an experienced ercoup Mechanic or place to take it. It has a single fork which is the way I would like to keep it. Any Suggestions would be appreciated.ThanksThurman PangburnN-3667 > > > > > > > > > _________________________________________________________________ > Don't get caught with egg on your face. Play Chicktionary! > http://club.live.com/chicktionary.aspx?icid=chick_wlhmtextlink1_dec >
