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Pre-vertigo clutch
https://www.ausmini.com/forums/viewtopic.php?f=2&t=97917		 Page 1 of 2
Author:  Arp1275 [ Sat Nov 03, 2018 7:11 am ]
Post subject:  Pre-vertigo clutch
Hi - I’m trying to adjust the clutch on my 1275 Clubman. I’ve replaced the slave cylinder, bled the system, topped up the master, adjusted the big nuts to 1/8” gap, adjusted the stop to 20 thou. Now before I put the spring back on the clutch will disengage right at the bottom of the pedal travel but once the spring (& it’s an old one with limited tension!) on the clutch doesn’t disengage well. Any advice would be much appreciated. Bloody spell check made it pre-vertigo instead of pre-verto!!! Grrr can’t update title! Sorry! Image


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Author:  Bill B [ Sat Nov 03, 2018 10:19 am ]
Post subject:  Re: Pre-vertigo clutch
That title is quite funny for a part that spins. Didn't realise spellcheck has a sense of honour.

I posted a reply to this in timmy201 thread.
Author:  winabbey [ Sat Nov 03, 2018 12:51 pm ]
Post subject:  Re: Pre-vertigo clutch
Bill B wrote:
Didn't realise spellcheck has a sense of honour.

Ha ha. Very subtle Bill. 8)
Author:  AWOODY [ Sat Nov 03, 2018 2:46 pm ]
Post subject:  Re: Pre-vertigo clutch
Forget adjusting the big nuts THROW THEM AWAY !!!
Author:  1071 S [ Sat Nov 03, 2018 3:57 pm ]
Post subject:  Re: Pre-vertigo clutch
....... Along with the spring

Cheers, Ian
Author:  Arp1275 [ Sun Nov 04, 2018 9:27 am ]
Post subject:  Pre-vertigo clutch
The spring doesn’t really seem to do anything - thanks for the replies in the other thread - all working nicely now!Image


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Author:  TheMiniMan [ Mon Nov 05, 2018 1:45 pm ]
Post subject:  Re: Pre-vertigo clutch
now your throw-out bearing will be running on the clutch the entire time you are driving the car,,, not going 5to last long that way

& if there is an issue with the clutch hose, or a bit of crap in the hose/pipe, or a bit of clutch plate material decides to come off & double-up then you have a good chance of busting your center-main-cap bolts off,,, at best it will just break the pivot lug off the alloy clutch wok (hopefully) instead of busting your center main-cap bolts

don`t throw away the "Anti-over-throw-nuts" , that`s what they`re there for,,, to help it not to over-throw :-)

sorry to all who have said to throw them away,,, but i`ve seen the damage from this ignorance way too many times,,, there really is a few reasons why theyre there.
Author:  1071 S [ Mon Nov 05, 2018 2:33 pm ]
Post subject:  Re: Pre-vertigo clutch
And yet, in 50 years of running a Mini I've not had a problem with ditching both .... and I've never (as in "not ever") even heard of anyone who's had a problem.

I do know of cars that have had problems when the throw out nuts get loose and close up.... and mal adjusted clutches with the spring fitted....

You pays your money and takes your chances....

Cheers, Ian
Author:  simon k [ Mon Nov 05, 2018 2:35 pm ]
Post subject:  Re: Pre-vertigo clutch
TheMiniMan wrote:
now your throw-out bearing will be running on the clutch the entire time you are driving the car,,, not going 5to last long that way

& if there is an issue with the clutch hose, or a bit of crap in the hose/pipe, or a bit of clutch plate material decides to come off & double-up then you have a good chance of busting your center-main-cap bolts off,,, at best it will just break the pivot lug off the alloy clutch wok (hopefully) instead of busting your center main-cap bolts

don`t throw away the "Anti-over-throw-nuts" , that`s what they`re there for,,, to help it not to over-throw :-)

sorry to all who have said to throw them away,,, but i`ve seen the damage from this ignorance way too many times,,, there really is a few reasons why theyre there.


I keep quiet about the "no spring" and "no throwout stop nuts" debate, but I agree with Matt (and I'll stand behind him while other people throw stones) - my clutch is excellent and I have both fitted
Author:  Scoop [ Tue Nov 06, 2018 6:10 am ]
Post subject:  Re: Pre-vertigo clutch
If the nuts are fitted correctly then there will be NO issue with clutch operation. The spring just holds the throw out bearing off the spinning pressure plate. Bearings are crap enough these days without having to spin all day...
Author:  phillb [ Tue Nov 06, 2018 2:11 pm ]
Post subject:  Re: Pre-vertigo clutch
1071 S wrote:
And yet, in 50 years of running a Mini I've not had a problem with ditching both .... and I've never (as in "not ever") even heard of anyone who's had a problem.

I do know of cars that have had problems when the throw out nuts get loose and close up.... and mal adjusted clutches with the spring fitted....

You pays your money and takes your chances....

Cheers, Ian


If the anti throw out nuts get loose the worst that can happen is a broken clutch arm. I’d rather that than destroy a motor.

If the nuts are tightened correctly they should not come loose.

The people who designed the engine were not stupid and the nuts are not there for decoration.

For many years I taught abseiling. In all my years I never had or knew of anyone having a complete gear failure and falling.

So why did I bother using an additional safety line??




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Author:  winabbey [ Tue Nov 06, 2018 3:51 pm ]
Post subject:  Re: Pre-vertigo clutch
phillb wrote:
For many years I taught abseiling. In all my years I never had or knew of anyone having a complete gear failure and falling.

So why did I bother using an additional safety line??

Good analogy, Phill. Over a decade in retirement and I still have strong memories of some work topics, in this case risk management. It involves predicting the likelihood of an event occurring and the consequences should it occur. Those that are likely to happen and the consequences significant should be treated first to reduce the risk, then the others. The aim is to reduce the likelihood and/or reduce the consequences.

Phill - the likelihood of gear failing in your setup seems low given how you managed safety but the consequences deadly, hence your safety line. In this case the consequences element has been reduced.

Sorry for the rant. I'm back in retirement mode now. :wink:
Author:  850man [ Tue Nov 06, 2018 8:11 pm ]
Post subject:  Re: Pre-vertigo clutch
The throw out nuts are a carry over from the spring type clutch diaphragm, and the early slave cylinder, that did not have a circlip fitted. Pumping the clutch quickly would not give the master cylinder enough chance to return the fluid and it would pump the slave cylinder piston all the way out. The overthrow nuts, adjusted to spec would stop this.
Once the circlip type slave cylinder was introduced, it stopped the possibility of overthrow and made the nuts redundant.
The only way they can overthrow is if the rod has been extended and the freeplay adjustment done up too tight, or the throw out thrust bearing spaced out from the carrier.
The spring is fitted to help return the arm, and it holds the thrust bearing away from the thrust plate.
Author:  simon k [ Wed Nov 07, 2018 11:20 am ]
Post subject:  Re: Pre-vertigo clutch
which brand of oil do you guys use on your throwout stop nuts and return springs?? I like to use MoCasPen Superslip Ultra 45/12
Author:  AWOODY [ Wed Nov 07, 2018 3:41 pm ]
Post subject:  Re: Pre-vertigo clutch
Thank you 850 man !!!
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