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noise after new springs


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#1 mf1999

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Posted 12 December 2019 - 10:49 AM

Hi all,

 

So i had a spring snap in the usual way, anyway since it's been repaired i have had a knocking/clonking noise over bumps and vibration during acceleration.

 

Now to me this feels like a strut top mount is loose.

 

Does anyone have any tips on what else i could check?

 

Thanks in advance



#2 granpa

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Posted 12 December 2019 - 02:16 PM

Think the usual advice is to check the three top bolts are in their correct location, one being shorter than the others



#3 stimulator

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Posted 12 December 2019 - 04:30 PM

Take the 3 bolts out that hold the leg on. 2 are the same length on is shorter. That goes in the hole where the top coil of the spring is near. As the spring compresses it won't come in contact with the short bolt but will with a long one
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#4 mf1999

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Posted 12 December 2019 - 05:59 PM

I have done some investigation today, there is sideways movement in the suspension assembly on the drivers side, which should explain the noise and the vibration when accelerating.

 

i'm taking it back tomorrow to see what my mechanic thinks



#5 Lancelot

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Posted 12 December 2019 - 10:23 PM

A Stim says, check the length of the 3 bolts, it's happened to so very many of us.


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#6 mf1999

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Posted 12 December 2019 - 10:59 PM

Will mention that to my mehcanic tomorrow, should be a nice simple fix...... should be fine for the 10 mile or so drive there anyway.

 

Otherwise though apart from the front of the car being really high now (still needs to settle) the car is driving fine



#7 deuchebleu

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Posted 13 December 2019 - 10:44 PM

Take the 3 bolts out that hold the leg on. 2 are the same length on is shorter. That goes in the hole where the top coil of the spring is near. As the spring compresses it won't come in contact with the short bolt but will with a long one

I've read this often on here and I'm not disputing it but when I changed both struts, due to spring breakage, on my 2008 1.6HDi I found that all of mine were the same length and were more like a self tapper screw than a bolt. I'd owned this car from new so no question they were not as originally fitted. So at some point the design was changed but I don't know when. The OP doesn't give the year of his model but just thought I would mention it in case it is later than 2008.

John



#8 Red

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Posted 14 December 2019 - 05:14 PM

Last year I changed one of the front springs on the wife's Pic and had the same problem. I know normally you would advise changing both springs, but both springs had previously been changed by the local Citroen dealer a few years earlier and had only covered 20k miles. Doesn't say alot for Citroen springs. After further investigation I found that I hadn't tightened up the anti roll bar link sufficiently. Re-torqued and the noise disappeared.

Roy

 



#9 stimulator

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Posted 14 December 2019 - 08:13 PM

The problem with modern springs is that they are not coated with the same final coating as used in the old days as it us TOXIC. Because if this they are not do well protected and more fail.
Note that other makes suffer failures too, FORD for one.
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#10 mf1999

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Posted 17 December 2019 - 12:39 AM

as weird as this sounds, all the issues cleared up on their own........

springs still need a little more bedding in as the front is still high but otherwise everything is fine