HSD Dualtech spring twanging when turning

[Ninjat]

Hello everybody, Im going to try explain this as best I can, maybe try to get some pics to help too.
I have recently installled HSD DT coilovers, and the front springs were twanging like mad as I go from lock to lock, as if the top mount bearing is binding, I was told there is a wearing in process, so gave them a few days and some miles, but the sound is really loud and just doesn't feel right. Today I jacked the car up to have a look, and it doesnt seem like there is any way for the struts to turn with the wheels without the spring turning in the spring cups. Its like this; the lower spring cup is locked to the strut by locking collars, the spring is then held at the top by another spring cup, which sits against a metal spacer, which then sits against the top mount which is bolted to the car. I cant beleive that this is how it should be, and that the spring cup at the top will ever move freely. Anyone can shed some light? or got pics of front HSD DT for sw20 so I can compare?

Thanks for any help, Tam[/img]

[bobhatton]

Its like this; the lower spring cup is locked to the strut by locking collars, the spring is then held at the top by another spring cup, which sits against a metal spacer, which then sits against the top mount which is bolted to the car. [/url]

The top mount should have bearings in so the coil overs turn with the wheels

[Donato]

There is a wearing in process for the HSD's. However it should go after a couple of miles. Make sure you have the correct spring pre-load set. Failing that, give Driftworks a call and explain the situation. They are more than helpfull

[Ninjat]

Ive spoken to driftworks and they are really good, but they are advising me this is a normal symptom of new coilovers, and they will bed in over time, I hope they are right, but it feels like its binding way to hard, I cant post pics here as I havent posted enough. What type of bearing would there be, on my Dualtechs the top spring cup is definately just rubbing against a metal spacer, I was hoping someone would have a pic of their own for me to compare.
Im driving to Eindhoven on Friday so hope they are sorted by the time I get back, ~600miles. Will update as to what my outcome is.
Thanks for replies, Tam

[bobhatton]

Ive spoken to driftworks and they are really good, but they are advising me this is a normal symptom of new coilovers, and they will bed in over time, I hope they are right, but it feels like its binding way to hard, I cant post pics here as I havent posted enough. What type of bearing would there be, on my Dualtechs the top spring cup is definately just rubbing against a metal spacer, I was hoping someone would have a pic of their own for me to compare.
Im driving to Eindhoven on Friday so hope they are sorted by the time I get back, ~600miles. Will update as to what my outcome is.
Thanks for replies, Tam

I have never had to bed in any coil overs, but then again I have never had cheap Chineas makes.

I would take them off and make sure you can get them to turn on the work bench, you have a problem with them

[Donato]

I have never had to bed in any coil overs, but then again I have never had cheap Chineas makes.

I would take them off and make sure you can get them to turn on the work bench, you have a problem with them

They are definitely not cheap Chinese coilovers
All coilovers have a running in process to allow the springs to bed in as they've never been compressed with the weight of the car.

From what i remember from installing mine is that they don't have a top mount bearing. But i have the MonoPro's and not the DuelTech's. Difference is rubber top mounts as apposed to pillowball.

The spring is held in at the top and bottom. The top can't be adjusted, but at the bottom it's held in by the locking collar. If you loosen that up it reduces the spring tension, does that make a difference? The springs aren't meant to rotate. It's the coilover piston that moves. Not sure if it's the same deal of the DualTechs though.

[Donato]

A couple of pictures for reference.

[Ninjat]

Thanks glimitedmr2, are those mono pros? does the spring cup move up as you adjust the preload, or is the preload already set on those? On my fronts, the springs go all the way up to the top mount, like the standard rear ones in your pic. Took on off today to take a pic, will send it to driftworks. Really embarassing driving round with spring pinging like crazy everytime I park.

[Ninjat]

Heres a pic, I cant post links yet so will have to be copied and pasted into address bar. This is my front coilover.

i50.tinypic.com/143jnmf.jpg

[rev3turbo]

Surely your set up is wrong? there needs to be space for the topmount to turn by itself, yours look solid as if the whole strut is being turned right from the top

Yours:


how they should look like after a google.


Oh and im with bob, theres no "running in" with coil overs

[Ninjat]

Hi, thanks for putting my pic up rev3turbo, just had a reply from driftworks and apprently the design has changed, they say "Recently the spec on the coilovers have changed from the pic you have attached. They used to have pillowball top mounts and roller bearing spring seats, but to make them more comfortable, they were revised to be rubber top mounted."
I have again been told that they should bed in over time so will give them some time. Gonna ping my way over to Eindhoven and see how I get on.

[bobhatton]

Hi, thanks for putting my pic up rev3turbo, just had a reply from driftworks and apprently the design has changed, they say "Recently the spec on the coilovers have changed from the pic you have attached. They used to have pillowball top mounts and roller bearing spring seats, but to make them more comfortable, they were revised to be rubber top mounted."
I have again been told that they should bed in over time so will give them some time. Gonna ping my way over to Eindhoven and see how I get on.

With a pillowball or rubber mount you must still have a bearing and clearance for the coil over to turn, the spring must stay in place and never turn at all, send then back if that is the way that have come. There is nothing to bed in on a coil over