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Clutch Wont Disengage,


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#1 speedingorange

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Posted 15 December 2009 - 08:08 AM

~~~~~Please delete this text before posting the topic~~~~~~
Please give your topic a title that quickly describes your problem. Just putting 'Help my Mini doesn't work' is useless to anyone trying to help.
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100cc
late A+ engine
when clutch pedal is pressed the clutch whill not disengage, engine tries to keep moving the car farwards even with clutch pressed.:

I have bled the clutch and it still will not disengage, no fluid is leaking from the master or slave.

Anyone any ideas?

picture for reference of the clutch type installed:

[img]http://speedingorang.../IMG_9425-2.JPG[img]

Could it be adjustment of the two nuts on the end of the plunger / housing?

#2 Guess-Works.com

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Posted 15 December 2009 - 08:25 AM

Time for a new clutch....

The two nuts on the end just stop you overthrowing the clutch spring...

Do you get any 'grinding' noises when pressing the clutch, could be the clutch release bearing collapsed

#3 THE STIG

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Posted 15 December 2009 - 08:32 AM

is the arm moving at all ?

does it work if you pump the pedal

#4 speedingorange

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Posted 15 December 2009 - 08:46 AM

Not any better once pumped, and the arm is moving. I bled it last night, as there was about 2 inch of travel in the pedal before anything happens.

Please excuse short replies as I'm on a mobile. Unortunately at current I don't have the car to hand.

Edited by speedingorange, 15 December 2009 - 08:48 AM.


#5 THE STIG

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Posted 15 December 2009 - 08:49 AM

has any work been carried out on the engine/ clutch or was it working and just stoped working ?

#6 speedingorange

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Posted 15 December 2009 - 08:54 AM

has any work been carried out on the engine/ clutch or was it working and just stoped working ?


the car had a new engine about 4 months ago and it was a little dificult
to select gears immidiately after. This has progresively worsened over the last 3 weeks. No grinding noises when the clutch is depressed.

#7 THE STIG

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Posted 15 December 2009 - 09:00 AM

well if was not working properly at the start then got worse sounds like the the clutch needs replacing

could be release bearings , friction plate worn out needs replacing you wont know untill its removed

#8 Guess-Works.com

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Posted 15 December 2009 - 09:13 AM

The 2" of travel is a bit of a clue, do you mean, you have to press the clutch pedal two inches before the slave starts to move ?

If so replace the master cylinder, also check things like the clevis pins for wear and the hole in the end of the clutch pedal for ovaling, free play in the mechanical parts of the system is magnified.

#9 speedingorange

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Posted 15 December 2009 - 09:15 AM

Righto, I shall check this out further this evening I have a new master on the shelf. May aswell replace that before i replace something that I have to pay for.

Pedals are all in good order. Seems stange that the beginings of the problem started after a new engine was installed. The old clutch did look to have 20k or so left on it.

Clevis pin on the end of the clutch arm seems good.

I shall check that its not 2" of travel before it "feels" as though its going anything, and that it is actually 2" of travel before the arm moves.

the fluid that did come out of it last night looked like swamp water, even though it was fresh 2 months ago.

Edited by speedingorange, 15 December 2009 - 09:17 AM.


#10 speedingorange

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Posted 15 December 2009 - 09:18 AM

Oh and bleeding it last night did momentarily make it better. although stilll a little notchy.

#11 Dan

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Posted 15 December 2009 - 10:25 AM

The old clutch did look to have 20k or so left on it.


What type of clutch is it? Is it a Verto that you have fitted in a part worn state? If so is the release mechanism original to the clutch? Did you alter anything on the release plunger when you fitted the engine?

#12 speedingorange

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Posted 15 December 2009 - 10:34 AM

Its a verto clutch part worn from the original engine. Was just taken off and put back in after a clean bastically.

Nothing was altered on the plunger etc.

#13 Dan

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Posted 15 December 2009 - 10:40 AM

If nothing was adjusted it should be OK (Verto clutches don't like being disturbed in mid-use due to their self adjusting nature). As it is a Verto the problem probably isn't the adjustment. Carry on with your plan and investigate the hydraulics.

#14 speedingorange

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Posted 15 December 2009 - 10:43 AM

just spoken to a local clutch specialist, he said if there is any feel of travel in the hydraulics its 99 times outa 100 the spring within the master thats gone. (would make sensce with the filthy colour of the fluid) failing that its the ball on the clutch arm?




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