Clutch Judder

[sburrell93]

Had a search, but nothing seems to really cover what I'm experiencing.

When the car is cold or hasn't been driven in a while, I'm getting quite a bit of clutch judder on gear changes, but it goes away after a while. As far as I know, it's the original clutch that's on the car, but it doesn't slip at all through any gear.

I've always usually associated this type of thing with oil on the clutch/flywheel surface so my first thoughts was either the gearbox is leaking oil, or the slave cylinder in the clutch was leaking hydraulic fluid (it's a dci100 so has a hydraulic clutch). Anyone able to shed some light/their opinion on this?

 

[Ol’ Tarby]

Clutch release bearing maybe?

 

[sburrell93]

Now that you mention it, there is a bit of a noise coming from the box that sounds like it could be the release bearing, although it's not too noticeable atm. Wouldn't that cause judder all the time though? I'm stumped as to why it's only happening when the car is cold

 

[Snake182]

If oil was contaminating the friction material the clutch would most defiantly be slipping and be unlikely to cause judder. Clutch judder is normally felt when pulling off in first gear or low speed driving. Where are you feeling the judder through? the clutch pedal?, whole car in general?, steering wheel? etc.

 

[sburrell93]

That's exactly when it's happening mate. Pulling away from a standstill, changing from 1st into 2nd gear, sometimes happens going into 3rd. As I said though, only for the first couple of minutes driving when the car is cold, after that it's fine. Can feel it through the whole car, just sort of shakes everything in the car lol.

 

[Snake182]

Clutch judder is usually much worse from cold, and once the car has been driven a few miles and warmed up the symptom's appear to vanish as if there is nothing wrong, unless the judder is more severe at which point you can still feel it from pull off when warm, more than likely due to a warped clutch disc / pressure plate, with it being old it wont help. I would live with it for the time being, just more of an annoyance rather than a reliability issue

Edit, im not 100% sure but your car MAY be fitted with a Dual mass flywheel aswell, which if the internal dampening springs have worn would cause poor/uneven take off/clutch operation. But this would become apparent when you eventually change the clutch anyway

 

[sburrell93]

That's a bit of a relief then! I'll probably change the clutch at some point in the future anyway, but it's good to know it's nothing too serious at the moment, even if it is annoying lol

Cheers!

Edit: I'm pretty sure none of the mk2 dci's came with dual mass flywheels. Or I hope not anyway. Don't really want the cost of replacing that alongside a clutch!

 

[Snake182]

Yeah totally, I had an old clio 1.4rt back in 2008 and that had clutch judder for over a year, never did anything with it, stayed the same throughout ownership lol. Yeah the clio 65 and 80 don't but wasn't sure about the 100

 

[sburrell93]

Ah that's fine then, mines has only been doing it for a month or so! I think i'll be fine for another few months judging by that lol. Yeah, i'm pretty sure none of them have DMF's, just the mk3's

 

[Dr HMS Derv Destroyer]

no DMF on mk2 dci's. mine make the gear stik judder abit from could when low in the rev range, say around 1500rpms in 4th.

dissapiers when warm, clutch checked and its not that. just put it down to a good running engine so the ecu is adjusting the the engine down abit

 

[MartinR]

My 100 does it too when cold plus everything feels clonky lol, Just one of them things i reckon.

 

[sburrell93]

no DMF on mk2 dci's. mine make the gear stik judder abit from could when low in the rev range, say around 1500rpms in 4th.

dissapiers when warm, clutch checked and its not that. just put it down to a good running engine so the ecu is adjusting the the engine down abit

No gearstick judder on mine, but then again it's cable selector so that's probably why. Good to see it's just be the car being normal for once though and not causing me problems lol

My 100 does it too when cold plus everything feels clonky lol, Just one of them things i reckon.

Yeah mine is the exact same lol, feel so much nicer to drive once warmed up!

 

[Dr HMS Derv Destroyer]

its just what a dci engine does lol. ecu just controlling fueling when cold and then adjusting when upto temp.
mines been like that since i swapped the engine last year around may time, so i aint going to worry.

ive driven a dci around with a fucked crank for 6months LOL

 

[sburrell93]

I never knew that. Would probably explain why it feels so sluggish when cold. Been a few times where I've pulled out onto roundabouts with loads of room, only for the car to have hardly any low down power and end up holding someone up who was miles away!

Flol! And here's me worrying about basically a bit of a vibration from it!

 

[Dr HMS Derv Destroyer]

egr slug mode you've got when trying to pull out, clean it or bypass it.

i jus unplugged mine withou no dash lights or any problems.

 

[sburrell93]

Can't be that, I can't remember the last time my egr was plugged in I think it's just down to the fuelling when cold

Having the egr unplugged brings up the emissions light on the dash though for me though.

 

[Dr HMS Derv Destroyer]

why is it everyone ive known to own a dci cannot unplugg it and i can without the lights haha

you aint running twostroke are you? mine seems to do it a tad worse with that running through with diesel, wether its making the injectors or pump more ' lube'd '
so the ecu is fine tunning and making the injection timing slightly lean , giving us the judder.

 

[sburrell93]

Haha sounds like you've been lucky! Keep meaning to get a resistor onto the plug.

I've not been running any two stroke through it, but I've been using some of that millers oils fuel additive. Tried a bottle of it to see how it went, so that could always be doing a similar thing. Nearly finished now though so I'll see how it runs on my next tank

 

[Dr HMS Derv Destroyer]

yeah , i run 2stroke and decent pump diesel, supermarket diesel makes mine have a mardy and have a little stall ( not like a proper stall ) just cutts out and then picks back up again.

 

[sburrell93]

I've used supermarket diesel and never really noticed much of a difference, although the engine does sound quite ticky under acceleration at times. I just put that down to the higher rail pressure on the 100 though