All- I just had a HKS Twin plate clutch install and when I push in the clutch pedal I can hear grinding /friction sound (not exactly sure if something is grinding) but once the pedal is released or the clutch is engaged then the noise is gone. It only happens when the pedal is push in at any gear, any speed and even in neutral, once pedal is released or clutch is engaged then noise is completely gone. The shop told me it is absolutely normal and they have installed many HKS twins.
Does anyone has the similar issue with their Twin Disk clutch?
Could it be a bad throw out bearing?
Please Help.

 

it's your throw-out bearing. it should quiet down after it's broken in.

 

It's normal on all twin discs and no it's not your T.O. Brg.

 

alot of twin disk clutches are noisy when engaging them

 

yea, dats normal, give it a proper break-in and u'll be fine. btw, how does that clutch feel, is it really stiff like the exedy twin-plate? how is it in traffic? is it unbearable? lol, just curious if its worth all the money.

 

what makes you think it's not his T.O.B. Chattering for sure?

 

This is normal on all twin disc clutches. I have it on mine and I have driven my friends car that has it on his. It is just how the clutch is. There is no problem with your t.o.b.

 

Is normal on all twin disc clutches, I have used HKS, Tilton, OS, ATS and they all sounds the same.

 

Guys, thanks for all the input. I called HKS and they told me it is normal for GD Max or Pro so I guess it is fine.
There is no chatter and the clutch and trans just shift perfect.
Probably not many people use it, so here is my how I feel:
The pedal effort is same as the OEM clutch (when new)
The clutch engage great and there is no vibration/chatter etc, but you can feel it grab when you release quicker.
Other than the normal noise, I think it is a great clutch.

Correction: the one I had is the GD Max, the one with the hub spring and not the one without the hub spring. The one without the hub spring will have more vibration etc, I think.

 

I have the same clutch kit and it has alot of noise when you depress the clutch also, I also called HKS and they said it is normal. As far as drivablilty I think it is as easy to drive as my g/fs 08 civic si with a stock clutch, only thing that bothers me in traffic is my stalling issue due to my hks bov. lol
mike