clutch thoughts
Turbo Mini Forums

fwiw aswell as the last clutch i showed on here that had your twin spring setup, there was another clutch that i have seen lately wiht twin springs, only on this one one of the springs "fingers" was half the legnth, dotn quite understand the reasoning behind that but intersting anyways! ..

std clutch (mind im not on an a-series) coped with and started slipping at 155ft/lb the RTS has coped wiht up to 220ft/lb so far, stripped it the other week and its still all looking good, no abnormal stuff going on with the fingers rubbing together etc.

cheers :)

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

thats great news evo ,yes i had a good look at mine the other day when i changed my gears and it was all just as i put it in ,no sign of avon park abuse or 14.4 1/4 mile damage ,so thats encouraging !!
i just need to get the finances in order to get in on a rr and wind it up for the ultimate gt17 rts test !
christmas is a bit spensive though!
regards
robert

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

little update on this ,, the car ran up to 17 psi at avon ,ran 104 across the line on 14 psi ,no clutch slip at all ,estimate power at 185 to 190bhp.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

How many miles have you put on it since putting the clutch in Robert? It must be a fair few now...

well ric ,march 07 to now id guess at 4 to 5 k max ..but im not sure .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

4-5 thousand miles hard driving, so Nic tells us Robert.

It seems to be upto it then. Top engineering Robert.

Back once again like a renegade master

Nothing like a bit of plagiarism



About 2/3 hours work and £10 for the bolts !!!!

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

bloody hell, you threw that together quick paul!

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Ha,

thats just answered what i was wondering!

how long are the bolts.....

Hi,
Where can I get these shouldered bolts bolts from, please?
Cheers,
Gavin :)

VEMs Authorised Installer / Re-seller. K head kits now available!

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My Mini build diary

A place I work

I know you can get them from here

http://www.fastfixdirect.co.uk/code/naviga...arch=Show+Items

http://uk.rs-online.com/web/search/searchB...e=M8#breadCrumb

Not the cheapest I suspect

Google "AHC Camberley", that's where I got mine from and they are a bit cheaper.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Hi,
Thanks for the replies, this job is my next step...
Cheers,
Gavin :)

VEMs Authorised Installer / Re-seller. K head kits now available!

WB/EGT gauges. Click here for customers write-up

Visit www.doyouneedabrain.co.uk

My Mini build diary

I've spent another couple of hours fine tuning the clutch this morning. Not finished yet, but had to come in before my toes fell off. It's still freezing in my heated workshop !

The springs were not held central by the 10mm dia shoulders. The rivets were 11mm OD on this particular clutch. So I've turned up three collars, 11mm OD, 10mm ID, 10mm long and fitted them equally spaced on the shoulder bolts. The springs are now held in place better with just minimal play before you tighten the bolts.

I also think that I need slightly thicker washers to allow the bolts to tighten before the shoulder bottoms out. I see what I can find.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

That length are these bolts?

I used the 16mm ones. That's the length of the shoulder. The threaded ends are all the same length.

I'm now using 5.5mm of washers, so you could get away with the 15mm bolts and use thinner washers.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

I took the finished clutch and a Minispares lightweight verto flywheel to MED this morning to be balanced. It only needed a minimum amount of material taking off the cover. Even Steve was impressed - no mean feat.

Also, I found that the MED five paddle sintered clutch plate is exactly the right thickness at 7.75mm meaning that I did not have to machine the flywheel lugs to get the springs flat.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Paul,

isnt the mi nispare lightweight flywheel a diferent height to roughly maximise clamping?

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Ha! bASTARDS!

Been playing with mine today Paul

On the verto's with the plate under the 9 rivets, the rivets are thinner (about 6.5mm) and have a 10.8mm dia spacer under the plate. the plate has 6.5mm holes for the rivets rather than the spacers passing through the plate.

I think having the plate there is a ood idea as it will support the top ring better than the bolts/washers every 30 odd degrees.

I think rather than the shoulder bolts this pate with std socket heads with a washer and a tube spacer underneath would be as good if not better than faffing around with several washers.


Oh also, has anyone got a later 190mm clutch plate to measure the diameter of? do they actually come out at 190mm or are they slightly over? as i have a 180mm plate that is 183mm dia...

Edited by Joe C on 15th Jan, 2009.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

i know someone asked a pages back, but could some do a 'how to' write up on this please?

thanks

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

your a mind reader !!!!!

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM