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Old 11-02-2007   #16
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Re: Clutch Judder

Sorry I forgot to mention that mine's a Dualogic. I've been told by the dealer that its a software issue, then someone else on this forum said they're getting the clutch replaced, others are saying its normal. I don't know what to believe anymore..
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Old 12-02-2007   #17
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Re: Clutch Judder

after offloading the goods, the problem had not came back since sat morning.


the left foot was definite not touching the clutch.
and i give the clutch pedal an examination,, it's not loose nor anything.


at the same time . on sat afternoon.
detected a leaking boost gauge pipe in the engine bay, ( no wonder feeling lesser power lately ) got it fixed.

wondered if they are related ?

will keep monitoring.
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Old 19-02-2008   #18
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Re: Clutch Judder

I just got my first doblo this weekend. 2004 1.9 JTD active, i was wondering whats going on with this clutch judder, mostly at moving up to 30mph. in first and second. It feels like if i do not get the hang of it the drivetrain will be wrecked.

From what i can make out, its highly sensitive, and also has a different bite and rev point depending on whether the vehicle is going up or down a gradient with more or less of its own weight.

So far to master it, on straight roads i barely touch the clutch and keep my heel on the floor to fine control the release.

When going up a gradient, even slight it can almost be used like a normal clutch

When going down, a gradient i will say go from 1st to 3rd and miss out 2nd totally

From what i can make out, the judder seems to be indicating the clutch is getting too much power for the situation.
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Old 19-02-2008   #19
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Re: Clutch Judder

Quote Originally Posted by mingsect View Post

will keep monitoring.


just an update,

finally one morning in dec 2007, it judder so bad, until the doblo cannot be driven

i tot it's the clutch ,

but after the gearbox was taken out

culprit was flywheel issue.

after kicking up a fuss .. and meeting a rear senior management

In the end i managed to claim and replace a flywheel from the dealer
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Last edited by mingsect; 19-02-2008 at 02:49.
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Old 23-02-2008   #20
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Re: Clutch Judder

just to add, i notice that if i tip the dobo seat forward its less comfy, but my foot seems to able to control the clutch and prevent judder.

From reading all these posts, and my experience of first week as doblo driver, its difficult to understand if this is a real problem or a characteristic due to gearbox mounts that needs different seat position, driving method and adjustment of clutch bite point to deal with it.

I'd quite like to know exactly what is going on here as i'm covered for wearable item mechanical repairs for only another two weeks, (i just bought the doblo from a main dealer with double warranties last week) then it switches to driveline component warranty.

If its a clutch component problem interacting with a driveline component, then the dealer and warranty cover are going to be blaming each other, unless i have some case evidence to present to the dealer which makes it clear, that both wearable and main components need to be looked at for an interaction.

regardless of that, why have people been putting up with it. Juddering is both dangerous for pulling out at junctions and has got to be bad for the major components. ?

..
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Old 23-02-2008   #21
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Re: Clutch Judder

I just don't think anyone has ever got a definitive answer to this problem. It affects my car too from time to time, though only when setting off in first.

I've read a lot of correspondence on the subject but sadly i am still none the wiser. Probably the flywheel, or stiction in the thrust mechanism, or...or...
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Old 23-02-2008   #22
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Re: Clutch Judder

I've never had actual clutch judder on mine but I have stalled it a couple of times, but I put it down to my driving. Maybe it was something to do with the clutch? But the 120bhp engine is supposed to have a different clutch anyway .
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Old 24-02-2008   #23
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Re: Clutch Judder

If we are talking of a judder that sometimes we get when pulling away in first, then the answer the mechanics have given me is that the new clutches arenít made of asbestos anymore and the new material they use today, tends to accumulate a small amount of powder on the discs that makes them un even. We dobbiers tend to cruise because of fuel economy and the same goes for pulling away in first but some times we have to turn the sport option on in order to remove that powder (thatís what they told me). I used to have a uno couple years ago that developed the same problem after the new clutch had been installed, it used to be more evident on rainy humid days and almost absent in the summer. It would be nice to know if cars from other makers have had this problem thus itís become a common problem - non problem or is it just fiats clutches?
Doing a simple google search this came out:
Thanks RichDoblo120 thanked for this post
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Old 24-02-2008   #24
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Re: Clutch Judder

Quote Originally Posted by Active14 View Post
the new clutches arenít made of asbestos
They were??

Quote Originally Posted by Active14 View Post
the new material they use today, tends to accumulate a small amount of powder on the discs that makes them un even.
Where's the dust coming from?
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Old 24-02-2008   #25
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Re: Clutch Judder

Quote Originally Posted by luvduvs View Post
They were??



Where's the dust coming from?
I guess from the material they use today on the plates


yes clutches and brakes where made of asbestos!!
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Old 24-02-2008   #26
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Re: Clutch Judder

Quote Originally Posted by luvduvs View Post
They were??
so were brake linings

If the judder appears on a new clutch, that would account for why I stalled a couple of times when the car was new. It hasn't happened since then.
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Old 24-02-2008   #27
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Re: Clutch Judder

Interesting. Thanks.
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Old 11-03-2008   #28
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Re: Clutch Judder

[quote=mingsect;1014886]speaking of this clutch juddering.
i just experienced it yesterday ( had 30 cartons of drinks in the rear)
average 5kg times 30 = 150kg

30 cartons of drink! Man thats quite a party! I hope you had a good time!!
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Old 11-03-2008   #29
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Re: Clutch Judder

Quote Originally Posted by RichDoblo120 View Post
so were brake linings

If the judder appears on a new clutch, that would account for why I stalled a couple of times when the car was new. It hasn't happened since then.

And, of course, when you stall it...MAN, that steering is heavy - and so are the brakes.
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Old 18-08-2011   #30
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Angry Re: Clutch Judder

i have a doblo 52 plate which had a new clutch in december 2010, no flywheel though, i have just had this remapped to 136BHP and my judder only does this when.....

1st & 2nd PERFECT. loads of power no slipping /juddering.

but if i am in 3rd ACCERATING past 30 (FIRM - NOT HARD) it JUDDERS @175rpm through to 200rpm then stops

then 4th past 40mph same again

then 5th past 50mph same again.

this only happen on good accereration but can be noticed when climbing hills etc from time to time..

it is definatly 100% no conected to weight issues. i have alot of equipment in my doblo (well did) nearly 400kg of extra weight in back seats, frames, speakers, amps batterys, wire, MDF etc and i thought this was the issue, took everything out (and i mean everything - even trims carpets EVERYTHING) still no avail, still exactly the same judder, same sequence timing etc. ALL WEIGHT BACK IN - EXACTLY SAME

i wonder if this could be the flywheel ???

cost over £700 in december for clutch etc and really reluctant to get a new flywheel.

since i have asked the tuning guy to take the map of it does not do it. AT ALL!

we tried everything with the mapping tuning everything down and spot tuning diffferent aspects of the tune. NO AVAIL.

i only had two problems witht he map and that was the juddering and excessive smoke cruising in 4th! it was rediculous! REALLY PUMPIN OUT LIKE TRUCK GOING UP VERY STEEP HILL!

its just so frustrating. the extra BHP he got from it was truely amazing. but no worth the hassel i dont think.

does anyone else think that this maybe the flywheel of something else?

doblos obvioulsy judder as alot of people post it.

any help would be appriciated.

Scott
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