>
> Atwell (Buff) Haines wrote:
> >
> > At 01:41 AM 12/7/97 -0800, msecres@ibm.net wrote:
> > . I am experiencing a shimmy in the car at around 45 to
> > >> >50 mph. It is not consistant. It comes and goes. I have already replaced
> > >> >the front shocks, springs, ball joints, and several bushings, but the
> > >> >shimmy persists. My next thought is tires, although, the tires look
> > >> >good. They are Perreli brand. Any suggestions would be much appreciated.
> > >> >Thanks in advance...........................................Troy Johnson
> > >>
> > >> Troy,
> > >>
> > >> Driveline & suspension vibrations can be of numerous and varied causes.
> > >>
> > >> Since you suspect tires, lets start there.
> > >>
> > >> How old are your Pirellis? Do they have nylon belts (look at the fine
> > >> print on the sidewalls)? How often do you drive your Spitfire? When was
> > >> the last time you had the tires balanced or rotated and did that affect
> > >> your problem? Are the wheel/tire assemblies true (not wobbly, scraped
>or
> > >> bent)?
> > >>
> > >> >
> > >> Atwell (Buff) Haines
> > >> '79 Spitfire FM96062
> > >>
> > >> Succasunna, NJ USA
> > >> CarBuff@scooter.net
> > >> "There are three types of people in this world:
> > >> those that are good with numbers, and those that aren't."
> > >
> > >Vibrations caused by the driveline will not be sporadic and will only
> > increase with
> > >speed.
> > >
> > >When did you last have the front end aligned?
> > >
> > >--
> > >Martin Secrest
> > >73 GT6
> > >74 Spitfire
> > >
> > Thanks Martin,
> >
> > You are right of course when you say >Vibrations caused by the driveline
> > will not be sporadic and will only increase with
> > speed.<< Thats why I homed in on the rolling components.
> >
> > Changing out bushings and other mounting stuff _ Will_ change alignment.
> > Troy, do you feel the vibration as a side to side shimmy of the steering
> > wheel? If the car is just shaking, the problem may be in the rear....
> >
> > Atwell
>
> Righto, Buff. Not to mention another area of possibility -- the brakes,
>specifically,
> the front calipers. If one of them is sticking, you'll get sporadic shimmy
>-- if one of
> them is REALLY sticking, you'll get Ko Ko Bopp.
>
> --
>
> Martin Secrest
> 74 Spitfire
> 73 GT6
>
I had a similar shimmy around 40 to 45 MPH, and somwhat consistant.
Tightening my sterring rack mounts almost completely cured it. I'm
hoping that when I get get new bushings I can get rid of it for good.
Mike
79 Spit
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