BC Coilovers
#16
Registered User
#17
Sleeve type coils? The shock and spring are separate from each other in the rear, so I think that's what you mean. In my opinion, I think that the spring itself is set too high, and is bearing all the weight causing the shock to bounce around when going over bumps (weight being transferred/moved). Anyone think this is right?
Oh and one more thing... I've been having trouble adjusting the preload in the rear, since the directions are awful from BC; could someone just advise me how to adjust the rear preload?? Thanks!
Oh and one more thing... I've been having trouble adjusting the preload in the rear, since the directions are awful from BC; could someone just advise me how to adjust the rear preload?? Thanks!
#18
Movin On!
iTrader: (13)
Just be sure when you preload the car is fully elevated and the spring bucket is under no load prior to jacking the spring.
#19
Registered Member
Thread Starter
Thanks, but I got that part. The piece in question is the rings. Do I need to turn only the larger bottom ring with the spanner or do I need to undo the top smaller one as well?
Thanks!
Thanks!
Disconnect the shock absorber at the bottom. Use a floor jack to raise the spring bucket until the spring starts to actually push back against the jack, compress it another centimeter or so. Adjust the shock absorber so you can re-bolt it without having to raise/lower the spring bucket.
#20
The smaller ring is the locking ring, so yes loosen that one up. Then loosen the larger one and you'll be able to adjust the bottom mount very easily.
#21
I too have the BC coil overs and can't get rid of the rattling noise in the right rear. I increased the spring tension on that side only, temporarily, to more than what it should be and it still makes noise. Funny that the left side rear is totally quiet. I believe the noise is from the upper part of the spring not being of the same diameter as the nylon bushing that the spring rides on..... but why the left side is quiet? I don't know.
The noise, while not loud, is extremely annoying. I have been playing with this off and on for more than a month. I have plenty of adjustment left either way, high or low, so I'm right in the middle with a 26" height to fender.... not slammed or anything. The other thing I noticed is that the preload on the right side ends up being higher although I have the exact same measurements from one side to the other as far as the shock length and the spring adjuster goes.... so I would expect the OTHER side to make noise if anything. Weird.
Anyone ever found a way to eliminate this? otherwise they are coming off. Thanks.
The noise, while not loud, is extremely annoying. I have been playing with this off and on for more than a month. I have plenty of adjustment left either way, high or low, so I'm right in the middle with a 26" height to fender.... not slammed or anything. The other thing I noticed is that the preload on the right side ends up being higher although I have the exact same measurements from one side to the other as far as the shock length and the spring adjuster goes.... so I would expect the OTHER side to make noise if anything. Weird.
Anyone ever found a way to eliminate this? otherwise they are coming off. Thanks.
#22
I too have the BC coil overs and can't get rid of the rattling noise in the right rear. I increased the spring tension on that side only, temporarily, to more than what it should be and it still makes noise. Funny that the left side rear is totally quiet. I believe the noise is from the upper part of the spring not being of the same diameter as the nylon bushing that the spring rides on..... but why the left side is quiet? I don't know.
The noise, while not loud, is extremely annoying. I have been playing with this off and on for more than a month. I have plenty of adjustment left either way, high or low, so I'm right in the middle with a 26" height to fender.... not slammed or anything. The other thing I noticed is that the preload on the right side ends up being higher although I have the exact same measurements from one side to the other as far as the shock length and the spring adjuster goes.... so I would expect the OTHER side to make noise if anything. Weird.
Anyone ever found a way to eliminate this? otherwise they are coming off. Thanks.
The noise, while not loud, is extremely annoying. I have been playing with this off and on for more than a month. I have plenty of adjustment left either way, high or low, so I'm right in the middle with a 26" height to fender.... not slammed or anything. The other thing I noticed is that the preload on the right side ends up being higher although I have the exact same measurements from one side to the other as far as the shock length and the spring adjuster goes.... so I would expect the OTHER side to make noise if anything. Weird.
Anyone ever found a way to eliminate this? otherwise they are coming off. Thanks.
#23
I had the same issue in the exact same corner... with 3 different shock absorbers from them (including a blown one). I learned the hard way if you buy cheap, you get cheap. They were an incredibly helpful company, but the product is crap if you ask me. I wish I had just stuck with Eibach springs. If only you could get KWs for the X coupe.
Im going to try letting it settle in but will call Lance to see if he can shed light. Sorry you went through so much trouble. ... dont know if I can b that patient. We will see. Tx again.
#25
NextLevel Performance
iTrader: (53)
hmmm, this actually is the first I've heard of/seen any issues w/ noises coming from BC's. Everyone on here keeps calling them "cheap"??? How is a 1k coilover setup cheap? yes its less then the KW level or higher end coils, but by all means BC is a quality product for daily driving and is NOT CHEAP. I've had many people purchase these coils, and on the370.com there are 100's of Z's that run BCs with no complaints/issues.
Now, the issue at hand. Have you attempted completely remove the coil that is causing the issue and reinstalling it? Curious if its something within the install that is causing the issue, any loose nut/bolt that he strut is flexing. Also, what are your dampening settings?
Now, the issue at hand. Have you attempted completely remove the coil that is causing the issue and reinstalling it? Curious if its something within the install that is causing the issue, any loose nut/bolt that he strut is flexing. Also, what are your dampening settings?
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Edward Cheng
Brakes & Suspension
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09-08-2015 11:56 AM