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Old 10-19-2014, 02:34 AM   #1
DRK NY8
 
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Need help, rear passenger side spring clunking

Hi fellow C5 members, I need some help with a clunking noise coming from the passenger side rear spring. I recently got BMR 1.25 drop springs all around (SP077) and I've been hearing a clunking noise , almost sounds like metal hitting metal. The sound only occurs when I go over bumps and only comes from the passenger rear. Anyone know what might be the issue? See photos
First pic is drivers side rear (no clunk)
Second pic is passenger side rear...where the clunking noise is coming from.
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Old 10-19-2014, 07:48 PM   #2
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Can someone help me out please! thank you.

Bump
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Old 10-19-2014, 08:54 PM   #3
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Make sure you are not hearing the tire hitting the inner plastic wheel well inner liner. If you take the tire off and tap on the liner you will see that it makes a lot of noise. I added a rivet in there to hold it tight.
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Old 10-19-2014, 09:02 PM   #4
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I had a similar issue with my Springs in the front. They were rotated so they weren't lined up properly. Jacked the car up and spun them to line them up and noise went away
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Old 10-19-2014, 09:58 PM   #5
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Quote:
Originally Posted by cj04 View Post
I had a similar issue with my Springs in the front. They were rotated so they weren't lined up properly. Jacked the car up and spun them to line them up and noise went away
Is there any way to tell with the pictures provided?
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Old 10-19-2014, 10:00 PM   #6
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I looked up the diy spring install on here which had some useful pics
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Old 10-20-2014, 11:57 AM   #7
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I would guess that something wasn't aligned or tightened down properly during the install, especially since the sound is only coming from one side. But we have seen a few cases of the upper coils on the springs hitting against eachother when going over big bumps. Those rear springs are a "dual rate" linear springs, and the upper coils are wound closer together than the lower coils. The upper coils are normally compressed by the weight of the car, and it is not unusual for them to touch eachother or rub when going over bumps. The metal on metal clanking noise is not a common occurrence, but when it does happen we recommend installing some spring isolator sleeves over those upper coils if you can locate the point where they are touching. Normally, I would just send you a pair of them to try out, but we are out of them and not sure when we will get anymore in-stock. You might have better luck finding some on your own if you need them quickly, even on Ebay or something....

http://www.rallysportdirect.com/Tein...4aURoCwdfw_wcB
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Old 10-20-2014, 09:24 PM   #8
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Quote:
Originally Posted by BMR Sales View Post
I would guess that something wasn't aligned or tightened down properly during the install, especially since the sound is only coming from one side. But we have seen a few cases of the upper coils on the springs hitting against eachother when going over big bumps. Those rear springs are a "dual rate" linear springs, and the upper coils are wound closer together than the lower coils. The upper coils are normally compressed by the weight of the car, and it is not unusual for them to touch eachother or rub when going over bumps. The metal on metal clanking noise is not a common occurrence, but when it does happen we recommend installing some spring isolator sleeves over those upper coils if you can locate the point where they are touching. Normally, I would just send you a pair of them to try out, but we are out of them and not sure when we will get anymore in-stock. You might have better luck finding some on your own if you need them quickly, even on Ebay or something....

http://www.rallysportdirect.com/Tein...4aURoCwdfw_wcB
I'll probably take it to the shop within the next few days to get it checked out...And if that doesnt work then i'll try the sleeves. As for safety and not destroying the car... i should be fine for another 1-2 days right?
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Old 10-21-2014, 12:11 AM   #9
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Just asking:

Are you sure you have the correct 'spring' on each shock/strut? You should be able to read the fronts to verify. Sometimes, they look the same -- just asking -- eliminate the obvious first. Once you can verify that, are they aligned properly in the shock?

I did mine (1" drop though) and had to make sure I aligned them properly.

To do my shock, I had to remove the lower control arm bolt along with all 4 'shock cap' bolts, and the shock bolt. Also, did you remove the sway bar link?

-Don
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Old 10-21-2014, 12:27 AM   #10
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Drk, I'm having the same issue you are experiencing. I'm going to try and get a video of it tomorrow and post on YouTube.
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Old 10-21-2014, 12:30 AM   #11
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Here are picks of mine installed --

http://www.camaro5.com/forums/showthread.php?t=371323

and here:

http://www.camaro5.com/forums/showthread.php?t=381401

-Don
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Old 10-21-2014, 10:12 AM   #12
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Sounds like the top nut on the shock was not tightened dow enough - had that problem with mine - dropped the shock out again and tightened the nut - problem solved. If it is making the noise over very slight bumps -where spring coils would not touch then that is likely the problem.
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