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Discussion Starter #1
GT JTD 55 plate

Hi all, I was driving to a stop at a petrol station pushed the clutch down to pop her into neutral and the clutch pedal went really light?

After filling her up, I drove her home and the clutch pedal was very light and she appeared to have half the pulling power, mainly because the biting point appeared to be over a large period of travel on the clutch pedal, however she is still going into gear and driving.

Once home, I feared the worse, got on here, did some searching and was slightly relieved when the symptoms appeared to point to a Slave Cylinder or Master Cylinder.

I rang up my nearest specialist (JCS Kegworth), which had an original Slave in stock and wanted £205 to replace, which I agreed to because I was pushed for time on a busy Bank Holiday w/e.

JCS then called back saying it wasn't the Slave and it was the DMF and Clutch that needed doing at £1150:wow:

I felt like I'd been kicked in the nuts, chucked up:vomit: then bought her back home before quickly ringing round before everyone who knows what they're are doing shut up shop for the holiday w/e, and booked her into AutoLusso for Tuesday morning for the clutch.

I am however a bit sceptical though as every search I do when people talk about their clutch going they say the pedal is very hard and notchy, not soft?

I don't rag her around, always warm her up slowly & gently before any spirited driving, keep fluid levels topped up and had the gear box fluid changed late last year, but she has done almost 120,000 miles now.

Any help would be appreciated.

Cheers,

Vik.
 

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You need to describe the symptoms better.

What do you mean by half pulling power ? Revs rising faster than car speed when you accelerate hard in higher gears, i.e. the clutch is slipping ?
Any problems selecting gears at all ?
You could do a stall test, i.e. put the car in gear with the handbrake on and see how easily the engine stall when you let the clutch out. However, if the clutch is failing this may make it worse and difficult to get the car to a garage for repair so perhaps not a good idea unless you are sure it's something else.

Does sound like the clutch has gone, which wouldn't be surprising at 120K miles.
 

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Can't see why/how they'd diagnose the DMF for the symptoms you describe. It has no bearing on the feel of the clutch, it's there to absorb some of the torque of the engine before being delivered to the drivetrain. If you can get it into gear, at all, and then with your foot off the clutch accelerate hard with no slipping I'd say the clutch and DMF are probably OK.

One has to consider what's going on when one presses the clutch pedal, Alfa use a pull type, so providing the hydraulics are ok the pressure you feel at the pedal is the force required to pull the diaphragm away from the pressure plate, this disengages the clutch as the clutch plate is no longer sandwiched between the pressure plate and flywheel.

If the clutch has gone very light and one has difficulty engaging gears first thought is master or slave cylinder, typically the seals in one (or both) are allowing fluid to pass and the system loses pressure. It could also be air in the system, if you sit in the car with the engine off and repeatedly pump the clutch is there any change in feel?

Let's assume that the hydraulics are ok....one would assume it can only be the diaphragm. If the diaphragm has lost all its tension then it would be very easy to *pull*, however it would no longer have enough to clamp the pressure plate, clutch plate and flywheel together and you would experience the clutch slipping, in which case the clutch does need changing. If you can get a gear and accelerate hard with no slipping then we can rule that out and we're back to the hydraulics.

Whatever it is..it ain't the DMF.

Good luck

Pub
 

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Discussion Starter #4
Cheers Both, sorry for the late reply, for some reason I didn't get an email update to say there had been a reply to my post and I've had a busy w/e.

I the car is going into gear, and the pull is probably half what it should be, and hence it does sound like the clutch will need doing.

I'm no mechanic, and I haven't been revving hard in case it breaks something, I'm guessing the slow pull is down to the clutch slipping.

Either way, fingers crossed it'll get me to AutoLusso on Tuesday morning and they'll sort it out.
 

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Usually its the slave cylinder. But on 120k miles I guess a bigger job isn't out of the question.
 

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Have you tried pumping the clutch pedal when the car is at rest, in neutral with the engine off as already advised in post #3 on this thread. If the clutch slave cylinder is on it's way out then this symptom could be the case.

Had this symptom - no feel/travel at all on clutch the morning after a 400 plus mile trip. Initially thought it was linkage or retaining clip as this had happened before. Then pumped up pedal and got the functionality back, Clutch pedal bites at top of travel, so may need replacing after over 140K miles, but this has now lasted for 3 months.
 

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HELLO, I RECENTLY CHANGE THE ENTIRE CLUTCH SISTEM : ON A 2002 ALFA ROMEO 147 2 DOOR JTD 8V/115HP AND I HAVE A WEEK PEDAL + THE SLAVE CLUTCH CYLINDER HAS A SHORT TRAVEL, ANY ADVICE PLEASE

I HAVE CHANGE THE CLUTCH KIT : DISC, PLATE AND PRESSURE BEARING
MASTER CLUTCH CYLINDER
SLAVE CLUTCH CYLINDER
CLUTCH LINE BETWEEN THE CYLINDERS

my problem is after a very, very, very hard time :vomit: putting the gearbox back and putting everything in position the clutch pedal is very week, it has no feel and it does not retract completely and i also noticed that the slave cylinder witch is mounted on the gearbox has a very short travel. I am not a mechanic, i am noob at such a difficult job,i have done some progress with putting everything back together but obviously i missed something. If someone is familiar with this problem please help me !!! i have lost my mind with this car....it's impossible and catastrophically impractical.
 

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:
:
I HAVE CHANGE THE CLUTCH KIT : DISC, PLATE AND PRESSURE BEARING
MASTER CLUTCH CYLINDER
SLAVE CLUTCH CYLINDER
CLUTCH LINE BETWEEN THE CYLINDERS

my problem is after a very, very, very hard time :vomit: putting the gearbox back and putting everything in position the clutch pedal is very week, it has no feel and it does not retract completely and i also noticed that the slave cylinder witch is mounted on the gearbox has a very short travel. I am not a mechanic, i am noob at such a difficult job,i have done some progress with putting everything back together but obviously i missed something. If someone is familiar with this problem please help me !!! i have lost my mind with this car....it's impossible and catastrophically impractical.

Seems you have replaced pretty much everything.. Maybe you still have some air in the system.
Maybe worth trying another round of bleeding the clutch..?
 

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Discussion Starter #9
Update:

Autolusso did the clutch and also the DMF which wasn't essential but was worn from the clutch being worn out for a considerable period of time.
I am really surprised by how light the clutch is now, maybe it got slowly heavier over my 4 years with it and hence I didn't notice it, but as far as I am aware it was always been like it was for 4 years, and from reading reviews on here, I just assumed it was supposed to be like that. The biting point and power always seemed good until something went wrong on Thursday. (I made the cardinal sin of buying the first Alfa GT I sat in and drove...... Come to think of it, I did the same with the 147 before that, and I've they're the only two Alfa's I have ever driven!)

Even when the clutch did eventually go, I didn't have a problem getting it into gear, just that the clutch pedal was very light and it appeared to have a loss of power.

It is a 10 year old car now, and having spent over £1,700 in the last 6ish months (front & back drop links, 4 year cam belt/waterpump etc, gearbox fluid change, thermostat, EGR block and tires) I think I'll be getting rid in the next year or two, but what do I get next?

Ardi, you're brave taking on a job like that yourself, so well done, but there is something obviously wrong, so maybe go into a clutch specialist and pay them for an hour or so of their time to jack it up and go over it with you, so you know what went wrong for next time. Good Luck.
 

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HELLO, I RECENTLY CHANGE THE ENTIRE CLUTCH SISTEM : ON A 2002 ALFA ROMEO 147 2 DOOR JTD 8V/115HP AND I HAVE A WEEK PEDAL + THE SLAVE CLUTCH CYLINDER HAS A SHORT TRAVEL, ANY ADVICE PLEASE

I HAVE CHANGE THE CLUTCH KIT : DISC, PLATE AND PRESSURE BEARING
MASTER CLUTCH CYLINDER
SLAVE CLUTCH CYLINDER
CLUTCH LINE BETWEEN THE CYLINDERS

my problem is after a very, very, very hard time :vomit: putting the gearbox back and putting everything in position the clutch pedal is very week, it has no feel and it does not retract completely and i also noticed that the slave cylinder witch is mounted on the gearbox has a very short travel. I am not a mechanic, i am noob at such a difficult job,i have done some progress with putting everything back together but obviously i missed something. If someone is familiar with this problem please help me !!! i have lost my mind with this car....it's impossible and catastrophically impractical.
Are you sure you have fitted the correct slave cylinder??? Very easy mistake to make

Ned
 
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