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Old 29-06-2012   #16
Ulpian
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Re: Won't go into reverse w/out grinding only when hot

Endemic Doblo prolems:


The windscreen wiper linkages can collapse.

The aux belt pulleys and tensioners can give up the ghost at low mileages.

The rear wiper motor can give up

The clutch can become sticky and the take up can get jerky, noisy and very weird.

The headlamp bulbs are a pig to replace


There are probably others, but these problems come up time and again, and some of them with other Fiat models too.
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Last edited by Ulpian; 29-06-2012 at 11:24.
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Old 06-10-2012   #17
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Re: Won't go into reverse w/out grinding only when hot

Hi,
I thought I'd update people on what I've done with this problem. About two weeks ago I took the plunge and replaced the clutch, throwout bearing, output shaft seal and tranny fluid. The job went slow but with no significant problems. I figure if I had another few Doblo's to do, I'd be flying through these clutch changes.
Anyway, the result was a softer pedal by far where I actually felt the "jar lid" action of the pressure plate. BTW I replaced the clutch with a Valeo unit from a dealer and the tranny oil was the recommened Tuleo (?) stuff from the dealer as well. All of my gearshift problems went away. Went into reverse like butter. Yay! This was a relief since total success was not a foregone conclusion. The old pressure plate was not really worn very much. I expected that the TO bearing had dug its way into the forks - it had, but not beyond norm in my opinion. The clutch disc and surfaces of the flywheel and pressure plate also did not exhibit abnormal wear. Where I saw problems was with the TO bearing. It wasn't sliding along the shaft very smoothly as a bunch of dust from the clutch disc was preventing smooth movement. The bearing itself seemed to turn loudly and I would say was worn. The shaft that the bearing slides along (which also includes the output shaft seal) showed signs of uneven wear. Thus I hoped this was causing problems, in that perhaps the bearing wasn't withdrawing from the pressure plate forks properly, causing it and the forks to overheat and not operate properly?? It's a theory?? Another thing that I noticed was that compared to my Punto Mk2, the slave cylinder has less travel. With the Doblo JTD setup there's just not much more room for it. Though I figure that it could produce another .5cm and that might solve the problems that people have been having with these clutches.

So now, I'm driving for about 2 weeks with no problems - better than when the car was new as it seems to always give me a clunk when going into reverse - and a couple of days ago when the engine was good and hot I get the clunk going into reverse It's slight, but why the hell has it showed up again?!?

My buddy has a Bravo JTD and he had shifting issues after a year of driving. The dealer replaced the slave cylinder and the problems went away. Even though I checked the slave cylinder and master cylinder for leaks (and they were fine), I'll try and replace the slave cylinder and see what happens. As I mentioned above, the amount of TO bearing movement you get when pushing down on the clutch pedal seems to be inadequate. Maybe my TO bearing started settling into the presure plate forks and even this tiny amount might be causing clutch release problems.

I'll continue to update
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Old 06-10-2012   #18
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Re: Won't go into reverse w/out grinding only when hot

Maybe try changing the clutch line for a braided one, if you've ever felt a standard clutch line they swell ridiculously! this will reduce throw out distance and makes the pedal feel crap. once changed they feel tight and totally different, also might explain the worse when hot syndrome as the pipe gets softer with heat . .
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Old 12-04-2017   #19
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Re: Won't go into reverse w/out grinding only when hot

Hi,

I'm a newbie and have got a similar problem - did you change the slave cylinder in the end? Did it help?

thanks,
Brian
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Old 1 Week Ago   #20
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Exclamation Re: Won't go into reverse w/out grinding only when hot

This thread seems to be old but as I am new to the forum I thought I would try anyway. I am having this very issue with my grande punto on an 07 plate and was wondering if anybody has actually got to the bottom of this, any help would be appreciated or is it a sign that my clutch is on it's way out. I have had this car for 5 years now so am unsure if it is still the original clutch as I have no documentation to say that it has ever been replaced by the previous owner/owners ?

Thankyou to anyone that may have some thoughts on this......
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Last edited by nexusmick; 1 Week Ago at 14:57.
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Old 6 Days Ago   #21
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Quote Originally Posted by nexusmick View Post
This thread seems to be old but as I am new to the forum I thought I would try anyway. I am having this very issue with my grande punto on an 07 plate and was wondering if anybody has actually got to the bottom of this, any help would be appreciated or is it a sign that my clutch is on it's way out. I have had this car for 5 years now so am unsure if it is still the original clutch as I have no documentation to say that it has ever been replaced by the previous owner/owners ?

Thankyou to anyone that may have some thoughts on this......
Check engine mounts..dogbone

Is the pedal bit quite low?
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Old 5 Days Ago   #22
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Re: Won't go into reverse w/out grinding only when hot

Thank you for your reply. Yes the pedal does seem quite low but every other gear seems to be fine.... What is a dogbone ? I will have a look at the engine mounts also, would these be difficult to replace or would it be a major undertaking ?
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Old 5 Days Ago   #23
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Quote Originally Posted by nexusmick View Post
Thank you for your reply. Yes the pedal does seem quite low but every other gear seems to be fine.... What is a dogbone ? I will have a look at the engine mounts also, would these be difficult to replace or would it be a major undertaking ?

No problem..

The DogBone..is at bottom centre

Engine:g.box to floorpan

Mine was well worn.. relatively simple..
2 bolts.. but on my punto the exhaust stopped you withdrawing 1 bolt.. so job went to a local garage

20 labour.. on top of oilchange 80

So 100 total

Improved gearchanges.. but clutch wear still made reverse crunch..once warm

Reverse has no synchromesh.. all forward gears do.. so more fussy.

I just got used to driving into spaces.

And selecting reverse as I restarted the car.. save 300 on a clutch job..
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Old 4 Days Ago   #24
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Thumbs up Re: Won't go into reverse w/out grinding only when hot

Hahaha, I am doing the same as regards to parking into spaces, doesn't seem to be too much of a problem at the moment so I will start investigating the clutch. I am due to do a service on her soon anyway so as she is on 104,000 miles at the moment and not far from being in need of new gearbox oil as the manufacturers recommend up to 120,000 when I come to replace that I may as well look at changing the clutch at the same time. Thank you for replying as it has giving me some other things to check/replace.
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