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New Clutch Friction Point

simmyb
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simmyb Community Regular

simmyb

Posted
Posted

Just got a new clutch a month ago and it functions fine

bite(Friction) point has always been at the top end and as it has worn a little it has moved right up the top, which is anoying to drive with...

it is a excedy heavy duty cushion button clutch.

could it be:

the way they installed it/ adjusted it?

Or anything to do with the master cylinder?

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NYTSKY Grand Master

NYTSKY

Posted
Posted
Just got a new clutch a month ago and it functions fine

bite(Friction) point has always been at the top end and as it has worn a little it has moved right up the top, which is anoying to drive with...

it is a excedy heavy duty cushion button clutch.

could it be:

the way they installed it/ adjusted it?

Or anything to do with the master cylinder?

Mine is the same,i have an Xtreme cushion button,you get use to it mate,but yeh it is annoying.

Absent Community Regular

Absent

Posted
Posted

Yeah I just got one of these Excedy hd ceramic cushion button clutches last week and now I'm regretting it, do you guys find it impossible to get off the line smoothly!!!!.

I need advice on using it, I have been giving it about 20% throttle and letting out the clutch as quickly as possible otherwise it shudders badly and feels like I'm damaging it. I'm always chug chugging of the line hoping that i dont snap a gear. Do I just need practise cos I've tried everything I can, maybe an organic clutch is better for me.

NYTSKY how do you live with it for street driving??

NYTSKY Grand Master

NYTSKY

Posted
Posted
Yeah I just got one of these Excedy hd ceramic cushion button clutches last week and now I'm regretting it, do you guys find it impossible to get off the line smoothly!!!!.

I need advice on using it, I have been giving it about 20% throttle and letting out the clutch as quickly as possible otherwise it shudders badly and feels like I'm damaging it. I'm always chug chugging of the line hoping that i dont snap a gear. Do I just need practise cos I've tried everything I can, maybe an organic clutch is better for me.

NYTSKY how do you live with it for street driving??

Practice makes perfect,had mine for 4 months will never go back to full face plate.

Cubes Grand Master

Cubes

Posted
Posted

Top end?

So the clutch engages just before your about to take your foot off the pedal. i.e all the way out?

I run an Xtreme 9puk ceramic. It bites hard and doesn't shudder unless your really trying to ride it in peak hour. Its basically a briskish take off. Reversing 'can' shudder a touch but its not too bad once you get the hang of it.

I've grown to really like the quick take up/grab of the ceramic puks. I could never go back to organic. :P

Initially its take up/grab point was very close to the floor

It has since worn quite a bit over almost 60,000km's, its take up point/grab is now ~1/2 way up the pedal. It still grabs hard but has started to slip occasionally on hard second gear shifts.

My only regret was opting for the 1050kg pressure plate. Its already broke my pedal box, I was fortunate enough to grab it before it completely tore the metal and was able to simply have it rewelded.

If your running a 800kg+ clutch definitely rip your pedal box and have it welded up. The poxy spot welds break easily. :S

Thunderbolt Rising Star

Thunderbolt

Posted
Posted (edited)
Yeah I just got one of these Excedy hd ceramic cushion button clutches last week and now I'm regretting it, do you guys find it impossible to get off the line smoothly!!!!.

I need advice on using it, I have been giving it about 20% throttle and letting out the clutch as quickly as possible otherwise it shudders badly and feels like I'm damaging it. I'm always chug chugging of the line hoping that i dont snap a gear. Do I just need practise cos I've tried everything I can, maybe an organic clutch is better for me.

NYTSKY how do you live with it for street driving??

Do you have the stock viscous diff in it?

What I found happens with a viscous diff is it allows some slip off the line before the diff locks up. When it is in the process of locking up, you will feel some vibration (or shudder). It is more noticeable with a button, as you have to give it more to get it moving.

If you have a clutch type diff (or open wheeler) then ignore what I just said.

ps. simmyb: I know that some cars allow some pedal adjustment so the friction point will be right. You would probably find that you can do this.

Edited by Thunderbolt
Absent Community Regular

Absent

Posted
Posted

The friction point is about three quarters from the floor and it will shudder if you put any load on it. I'm basically dumping the clutch with plenty of throttle to get off the line its a pretty quick takeoff all the time, reversing is bad I engage the clutch quickly and push it back in over and over to go about 3kph. For changing 1-2-3-4 its great much quicker than an organic.

Do you have the stock viscous diff in it?

Yeah I do would this be a problem anyone, Simmy do you use the stock diff?

The place where I had it fitted didn't machine the flywheel is this important?

Absent Community Regular

Absent

Posted
Posted

Mine is 5 puk cushioned rated at 260rwkw

pretty sure the diff isn't a problem as I can feel the shudder through the clutch pedal might give it a few weeks and try to get used to it. Not easy going from sloppy stock clutch to a ceramic button.

simmyb Community Regular

simmyb

Posted
  • Author
Posted

a ceramic clutch will give a shudder at the friction point if released slowely with a small amount of revs. Due to the type of clutch. with good clutch work, you should be able to release the clutch over the friction point with the right amount of revs ( more than on an organic clutch) and the car should take off smoothly with a little jolt from the grip, and maybe even a small skretch from the tyres.

and yes, i have a hardcore 2 way diff!

NYTSKY Grand Master

NYTSKY

Posted
Posted

Cubes i also feel that tiny bit of shudder in reverse.And am also running with a stock flywheel.

I think ill be upgrading the fly wheel in the future.It feels like the puks are grinding a ring into my flywheel sometimes. Must say when giving it a bit of a boot,there is no slippage at all,i also oppted for the 1050kg pressure plate,ive had no dramas yet,but will keep an eye on the pedal box from now on.

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