My BC Racing coilovers are very noisy!
12-11-09, 12:04 AM
#18
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Is this normal for coilovers? (this is my first coilover set up)
They make a lot of 'click', 'clack', and 'clunk' sounds...
Also when I pull into a driveway that I take on an angle, I hear a noise that sounds like the springs are decompressing in the rear. Hard to describe the noise in words...
But anyway, you coilover guys... is this normal?
They make a lot of 'click', 'clack', and 'clunk' sounds...
Also when I pull into a driveway that I take on an angle, I hear a noise that sounds like the springs are decompressing in the rear. Hard to describe the noise in words...
But anyway, you coilover guys... is this normal?
12-11-09, 11:09 AM
#21
I meant if I parked the car outside at work then drive home the rear would clunk. If the car is in the garage, it would not clunk when I drive to work. If its the temperature that caused this, how come the front don't make any noise? CMS care to chim in on this?
12-11-09, 12:20 PM
#22
I was going to ask if it was cold...and I see that you are in Toronto...so I'm going to assume it's reallly cold there haha.
When it's cold the fluid inside the damper gets much thicker, and metal expands a tiny bit. This can cause you to hear some nosie for mthe coilover until it warms back up. the reaso nyou hear ti form the rear is becuase it is not as isolated form the cabin as the fronts are.
OR you might beed to preload the rears a bit, or make sure they are at the correct preload.
When it's cold the fluid inside the damper gets much thicker, and metal expands a tiny bit. This can cause you to hear some nosie for mthe coilover until it warms back up. the reaso nyou hear ti form the rear is becuase it is not as isolated form the cabin as the fronts are.
OR you might beed to preload the rears a bit, or make sure they are at the correct preload.
12-11-09, 01:58 PM
#23
What is the correct preload for the rear? 2mm?
I was going to ask if it was cold...and I see that you are in Toronto...so I'm going to assume it's reallly cold there haha.
When it's cold the fluid inside the damper gets much thicker, and metal expands a tiny bit. This can cause you to hear some nosie for mthe coilover until it warms back up. the reaso nyou hear ti form the rear is becuase it is not as isolated form the cabin as the fronts are.
OR you might beed to preload the rears a bit, or make sure they are at the correct preload.
When it's cold the fluid inside the damper gets much thicker, and metal expands a tiny bit. This can cause you to hear some nosie for mthe coilover until it warms back up. the reaso nyou hear ti form the rear is becuase it is not as isolated form the cabin as the fronts are.
OR you might beed to preload the rears a bit, or make sure they are at the correct preload.
12-13-09, 08:54 AM
#26
Spring preload is how much the spring has been pre-loaded, or "squished" from it's free length position, or "loose" position.
The proper way to set preload on a coilover-
-Loosen both lock rings under the spring (spring seat ring(top) and spring lock ring(bottom)) so that the spring is loose and can move up and down slightly.
-Tighten up the spring seat ring so that the spring is snug, but do not tighten it down past simply holding the spring snug, this will be "0" preload.
-Now bring the bottom lock ring up so that it is just touching the spring seat ring, but do not tighten to lock, you will be moving the spring seat ring next.
-Now tighten up the spring seat ring so that you are now preloading (compressing) the spring.
-Measure the distance between the bottom ring and the top ring as you are tightening, once there is a 3mm gap between the two rings, you have 3mm of preload on the spring.
-Tighten up the lock ring to lock your preload in place
-Repeat for all 4 corners.
Hope that helps guys, we try and support you guys as much as possible with what we sell
The proper way to set preload on a coilover-
-Loosen both lock rings under the spring (spring seat ring(top) and spring lock ring(bottom)) so that the spring is loose and can move up and down slightly.
-Tighten up the spring seat ring so that the spring is snug, but do not tighten it down past simply holding the spring snug, this will be "0" preload.
-Now bring the bottom lock ring up so that it is just touching the spring seat ring, but do not tighten to lock, you will be moving the spring seat ring next.
-Now tighten up the spring seat ring so that you are now preloading (compressing) the spring.
-Measure the distance between the bottom ring and the top ring as you are tightening, once there is a 3mm gap between the two rings, you have 3mm of preload on the spring.
-Tighten up the lock ring to lock your preload in place
-Repeat for all 4 corners.
Hope that helps guys, we try and support you guys as much as possible with what we sell
12-17-09, 03:21 PM
#27
Spring preload is how much the spring has been pre-loaded, or "squished" from it's free length position, or "loose" position.
The proper way to set preload on a coilover-
-Loosen both lock rings under the spring (spring seat ring(top) and spring lock ring(bottom)) so that the spring is loose and can move up and down slightly.
-Tighten up the spring seat ring so that the spring is snug, but do not tighten it down past simply holding the spring snug, this will be "0" preload.
-Now bring the bottom lock ring up so that it is just touching the spring seat ring, but do not tighten to lock, you will be moving the spring seat ring next.
-Now tighten up the spring seat ring so that you are now preloading (compressing) the spring.
-Measure the distance between the bottom ring and the top ring as you are tightening, once there is a 3mm gap between the two rings, you have 3mm of preload on the spring.
-Tighten up the lock ring to lock your preload in place
-Repeat for all 4 corners.
Hope that helps guys, we try and support you guys as much as possible with what we sell
The proper way to set preload on a coilover-
-Loosen both lock rings under the spring (spring seat ring(top) and spring lock ring(bottom)) so that the spring is loose and can move up and down slightly.
-Tighten up the spring seat ring so that the spring is snug, but do not tighten it down past simply holding the spring snug, this will be "0" preload.
-Now bring the bottom lock ring up so that it is just touching the spring seat ring, but do not tighten to lock, you will be moving the spring seat ring next.
-Now tighten up the spring seat ring so that you are now preloading (compressing) the spring.
-Measure the distance between the bottom ring and the top ring as you are tightening, once there is a 3mm gap between the two rings, you have 3mm of preload on the spring.
-Tighten up the lock ring to lock your preload in place
-Repeat for all 4 corners.
Hope that helps guys, we try and support you guys as much as possible with what we sell
I tried this preloading thing and it definitely makes a difference. Mine where "TOO preloaded" and the ride was very bumpy at times. However after doing the preloading right the ride is much better and the spring gives a larger range for the dampers to work. As far as noises im not sure since i didnt have any noises before.
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