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 Post subject: Pre-vertigo clutch
PostPosted: Sat Nov 03, 2018 7:11 am 
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848cc
848cc

Joined: Tue Jun 12, 2018 8:32 pm
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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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 Post subject: Re: Pre-vertigo clutch
PostPosted: Sat Nov 03, 2018 10:19 am 
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1275cc
1275cc

Joined: Sat Feb 09, 2013 5:44 pm
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Location: Camden
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.


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 Post subject: Re: Pre-vertigo clutch
PostPosted: Sat Nov 03, 2018 12:51 pm 
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1360cc
1360cc
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Posts: 6648
Location: Melbourne, VIC
Bill B wrote:
Didn't realise spellcheck has a sense of honour.

Ha ha. Very subtle Bill. 8)

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 Post subject: Re: Pre-vertigo clutch
PostPosted: Sat Nov 03, 2018 2:46 pm 
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998cc
998cc
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Location: Bundanoon nsw
Forget adjusting the big nuts THROW THEM AWAY !!!

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 Post subject: Re: Pre-vertigo clutch
PostPosted: Sat Nov 03, 2018 3:57 pm 
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998cc
998cc

Joined: Fri Apr 01, 2011 8:33 pm
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....... Along with the spring

Cheers, Ian


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 Post subject: Pre-vertigo clutch
PostPosted: Sun Nov 04, 2018 9:27 am 
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848cc
848cc

Joined: Tue Jun 12, 2018 8:32 pm
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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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 Post subject: Re: Pre-vertigo clutch
PostPosted: Mon Nov 05, 2018 1:45 pm 
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Bimmer Twinky
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Location: Brisbane
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.

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 Post subject: Re: Pre-vertigo clutch
PostPosted: Mon Nov 05, 2018 2:33 pm 
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998cc
998cc

Joined: Fri Apr 01, 2011 8:33 pm
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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


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 Post subject: Re: Pre-vertigo clutch
PostPosted: Mon Nov 05, 2018 2:35 pm 
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Yay For Hay!
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Location: Wodonga - Vic/NSW border
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

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 Post subject: Re: Pre-vertigo clutch
PostPosted: Tue Nov 06, 2018 6:10 am 
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998cc
998cc

Joined: Mon Mar 10, 2014 11:38 am
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Location: Tassie
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...

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 Post subject: Re: Pre-vertigo clutch
PostPosted: Tue Nov 06, 2018 2:11 pm 
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1275cc
1275cc
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Location: Wollongong
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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 Post subject: Re: Pre-vertigo clutch
PostPosted: Tue Nov 06, 2018 3:51 pm 
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1360cc
1360cc
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Location: Melbourne, VIC
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:

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 Post subject: Re: Pre-vertigo clutch
PostPosted: Tue Nov 06, 2018 8:11 pm 
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1098cc
1098cc

Joined: Tue Jun 12, 2007 2:07 pm
Posts: 1874
Location: Lemmings, everywhere.
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.

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 Post subject: Re: Pre-vertigo clutch
PostPosted: Wed Nov 07, 2018 11:20 am 
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Joined: Wed Sep 08, 2004 9:27 pm
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Location: Wodonga - Vic/NSW border
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

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 Post subject: Re: Pre-vertigo clutch
PostPosted: Wed Nov 07, 2018 3:41 pm 
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998cc
998cc
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Joined: Sun Jan 09, 2005 3:48 pm
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Location: Bundanoon nsw
Thank you 850 man !!!

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