REFLECTOR:Nose Wheel Shimmy Brake Problem (Update)

[Wayne Owens]

----- Original Message ----- 
From: "Wayne Owens" <wamowens@bellsouth.net>
To: <reflector@tvbf.org>
Sent: Thursday, July 17, 2003 11:01 PM
Subject: Re: REFLECTOR:Nose Wheel Shimmy Brake Problem (Update)


> I relocated some holes at the top of my old channel style nose gear mount
> (fixed gear) so I now have 2 degrees negative caster when empty.
>
> I did some high speed taxi test with two of us > #200 in the front. My
> modification seems to eliminate the shimmy  (but I still have my break-out
> lock just in case).  I tried bouncing the nose gear several times with and
> without the nose gear locked. Felt no sign of shimmy.I think I may just
have
> a fix.
> Wayne
>
>
>
> ----- Original Message ----- 
> From: <Don19dw@aol.com>
> To: <reflector@awpi.com>
> Sent: Thursday, July 17, 2003 9:06 PM
> Subject: REFLECTOR:Nose Wheel Shimmy Brake Problem (Update)
>
>
> > So far have:
> > Balanced and checked nose wheel tire for out of round.
> > Adjusted main gear wheels for proper toe in and camber.
> > Tightened  main gear and nose gear pivot bolts to minimize excess play
> > Replaced nose gear fork as there was considerable wear in previous fork
> > bushing.
> > Tightened shimmy damper force on nose wheel well above numbers given by
> > Velocity.
> > The only item I can find out of spec is that the bottom end of the nose
> gear
> > strut tilts forward about 7 degrees (from vertical) and factory says it
> should
> > be about 2 degrees. Note: Adding weight to nose or braking causes the 7
> > degrees to INCREASE.
> >
> > Still get some nose wheel shimmy (not real serious) around 20 to 30 mph.
> (1)
> > when applying fairly heavy braking and am alone in A/C. (2) when I have
a
> > front seat passenger without any braking ( applying brakes aggravates
the
> shimmy).
> >
> > Anyone out there having similar problems or have any suggestions?
> >
> > Don White  N19DW   XL/RG
> >
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>