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st170 rear suspension

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Old Sep 28, 2009 | 10:52 PM
  #1  
gray29's Avatar
gray29
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Default st170 rear suspension

ok this is a strange one,

when i got my car 2 years ago one of the rear springs was really worn and bouncing, so i changed them both thinking that the previous owner had changed only one, now the problems back its not bouncing but one side is noticeably stiffer when cornering, any ideas what this could be? its not the damper i have just change it.

both sides of the car seem identical when jacked up, just one side is stronger than the other, when i changed the damper/shock it didnt feel broken, no leaking oil at the top, so i have go no clue what is causing one side to wear quicker than the other any ideas anyone?


gray
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Old Sep 29, 2009 | 07:34 AM
  #2  
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tabetha
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Springs can only "bounce" if allowed to by knackered shock absorbers, or dampers as some call them.
When the spring is compressed due to a bump the natural tendency is for the spring to return to it's normal length once that force(the bump) is removed, with no dampers the car would be undriveable, dampers are what control this movement.
You cannot tell about the performance of a damper by looks other than has it no resistance, has oil leaked out etc will give an idea, but won't tell you the whole story.
Whilst springs can and do go soft after years and years I don't think for a minute that this is your problem, of ten a car that is used with only a driver in it for years can be seen to sag slightly on that side.
I would change the shocks(both), they do go off and cease to function even when they don't lose oil, they get worn inside.
It sounds just like you have a soft shock.
tabetha
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