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the earlier XUD clutches use a vastly superior "pull" clutch, rather than the HDi "push" clutch (ie: what almost every other car uses) The pivot point is different, meaning more clamping force, for the same release force - but you have to pull the centre of the clutch out to release, rather than pushing it in. I found this out the hard way by fitting one - only to find it would never ever release  |
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You're like a crazy backyard genius! |
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tim124
Part of things
Posts: 128 
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"The pivot point is different, meaning more clamping force, for the same release force - but you have to pull the centre of the clutch out to release, rather than pushing it in."
Not so sure about that,the has to be a trade off, low clamping force = less release force,& high clamping force = more release force?
lever pivot point would change the distance traveled, so the pull clutch must have more movement.
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taken from page 46 of Advanced Vehicle Technology (2nd Edition) by Heinz Heisler  Awesome book, really worth a read if you can get a copy  |
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You're like a crazy backyard genius!
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explains the xud9te clutch coping with more torque than dw10
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I was quite surprised when I found out about the pull clutches too tbh - They look like a nice mild upgrade for most clutches too. Apparently good for approx 300lb ft, even on those small friction plates.
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You're like a crazy backyard genius!
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tim124
Part of things
Posts: 128
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Interesting stuff,it would be no big deal to convert to a "pull" clutch if flywheel size was an issue..
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Last Edit: Aug 7, 2014 21:02:12 GMT by tim124
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tim124
Part of things
Posts: 128
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Well, I now have a HDI Flywheel & new cover plate @ £30 the pair, picked up a new Sachs driven plate for £22.50, thanks for all your help!
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