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
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