I have recently fitted a clutch in my rst only to find it slips! I phoned the clutch place and he says that they can take up to 200 miles steady driving to bed in, as the material is very hard, does this sound right? The fly has been skimmed by the way,

Cheers for any help, Steve

i have never heard of a clutch having to bed in! i may be corrected very quickly tho.

Never heard of running one in either! got to say, a week prior i fitted an AP stage 1 organic kit, this slipped straight away too, which is why i opted for the paddle. The car origonaly ran a stage 1 kit from techniclutch with no slip for 6 months? The only difference was the car was being run in when that clutch was fitted. I just want to sell the bloody thing!

My ACT paddle clutch never slipped, it gripped TOO well at first.

It's slipping now though after a few thousand miles :(

I have a three plate carbon clutch rated at 1500 BHP and they said it needed running in for 1000 miles before doing any drag starts. Had it in for over a year and done 5000 miles it's supper smooth, never slips and has hardly worn at all. You can take the starter off and measure the plate thickness. Well wort the extra cost.

I have a three plate carbon clutch rated at 1500 BHP and they said it needed running in for 1000 miles before doing any drag starts. Had it in for over a year and done 5000 miles it's supper smooth, never slips and has hardly worn at all. You can take the starter off and measure the plate thickness. Well wort the extra cost.

 

How much extra cost? About 5 times the price if it's the RPS I reckon LOL

How much power are you running? :)

Running at about 550 RWBHP. Three times the price ten times the clutch,

Yeah the carbon clutches are far far superior to anything else out there! Clutches DO need to bed in but they won't slip during the bed in process - its more a heat treatment process for the friction plate. If you've had 2 slipping then I'd be looking to see that the release bearing/fork are installed correctly and aren't holding the clutch sightly open - check the cable isn't too tight...

I have the Exeedy twin plate carbon clutch and I was told the same that ir need about a thousand miles to bed in before giving it serious stick.

 

I've done around 7K on it and its really good. I doo find that if your in heavy traffic for an hour or so. Like Manchester rush hour or the M56 on a Friday Tea time during the spring and summer then it does get a little too bitey. You know just either off or on like a paddle clutch, but once you get on open road it goes back nice and smooth.

 

Paddle clutches are really an invention for race tracks. They are designed to be light weight, launch agressively and last 2 or 3 races. Not a clutch for every day really. A couple of trips through London or Birmingham Rush hour can quite easily kill em. I think Chris has done well that his lasted this long. It was a pain in the arse in mycar.

I have recently fitted a clutch in my rst only to find it slips!

 

oil leaking onto it? shouldnt slip new or not. may be spongey when new but if its slipping on an RST (escort im presuming) there's a prob.

Theres deffinatly no oil on it (and its a 2ltr T3 fiesta btw), release bearing came new with kit, cable is self adjusted and has freeplay and the fly was skimmed too, forget how many clutches ive fitted in my time, but never experienced anything like this before, going to pull it out and have another look think, somethings wrong somewhere!

 

Thanks for all the info, Steve

well if you got a T3 on a 2.0 is it going through an origional sized clutch? maybe it needs more clamping pressure?

Has the fingers on the pressure plate worn? Or have they become hot and got tempered/softened due to the heat from the slipping and took the nature out of the spring?

 

Might be worth throwing a new one on there before the friction plate gets fooked.

heh siraff........... that's what i was thinking ;) you posted as i was typing :p

The clutch is a brand new 3 piece kit done about 20 miles, and loads of people run more power with a standard size fly too, i think either ive slipped up somewhere or theres a faulty part ive missed?

Thanks Steve

how much was skimmed off the fly ive herd of some flywheels being skimmed to much an havin clearance problems

good point........ some flywheels have a step in them. when you skim the friction face you have to skim the stepped face back to original dimension to keep the clamping force the same.

If you've had 2 slipping then I'd be looking to see that the release bearing/fork are installed correctly and aren't holding the clutch sightly open - check the cable isn't too tight...

 

Back again! The clutch fork arm appears to be siezed, and gets worse the hotter it gets, so its out with the box again!

Thanks for everyones replies, advice and help

Steve

Back again! The clutch fork arm appears to be siezed, and gets worse the hotter it gets, so its out with the box again!

Thanks for everyones replies, advice and help

Steve

 

 

.........forking clutch arm ;)