flak monkey
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| posted on 15/9/09 at 08:24 PM |
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Next issue....
...my clutch release cylinder wont fit in the bore of my pressure plate. 
The support tube of the slave cylinder is 1.3mm too big (35.9mm) to fit in the bore of the pressure plate (34.6mm)
Looks like I either need a slave cylinder with a smaller support tube, or I can get the fingers of the clutch plate ground to allow the cylinder to
fit.
Sera
http://www.motosera.com
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Dangle_kt
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| posted on 15/9/09 at 08:45 PM |
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your not having much luck are you!
Are duratec installs always this fraught, or have you bought a load of parts from various places?
I'm not knocking you, just trying to understand if it is always that difficult.
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omega0684
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| posted on 15/9/09 at 09:56 PM |
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can you not pop it on the lathe?
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clairetoo
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| posted on 15/9/09 at 10:08 PM |
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quote:
Originally posted by omega0684
can you not pop it on the lathe?
The clutch fingers are gonna be spring steel - not the easiest thing to machine 
Its cuz I is blond , innit
Claire xx
Will weld for food......
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flak monkey
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| posted on 16/9/09 at 06:56 AM |
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No, I aint having much luck at all.
Anyone know of a slave cylinder with a round nose release bearing with a support tube with at least a 26mm ID and 34mm OD?
I can get the clutch cover machined at work in the tool room I should think if it comes to that on one of the tool grinders.
Duratec installs are easy if you are willing to spend the money on the off the shelf parts. As far as I know I dont know anyone else using the
flywheel and clutch arrangement that I am using.
The major issue for me was the std aftermarket flywheel and clutch kit for the duratec wouldnt take the power of a supercharged duratec. The only
other option was to run a 7.25" race clutch and flywheel which are readily available. But I baulked at paying over £750 for the privaledge!
David 
Sera
http://www.motosera.com
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MikeRJ
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| posted on 16/9/09 at 09:23 AM |
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quote:
Originally posted by flak monkey
...my clutch release cylinder wont fit in the bore of my pressure plate.
The support tube of the slave cylinder is 1.3mm too big (35.9mm) to fit in the bore of the pressure plate (34.6mm)
Looks like I either need a slave cylinder with a smaller support tube, or I can get the fingers of the clutch plate ground to allow the cylinder to
fit.
Are you using a concentric slave? If so then surely the tube doesn't have to project all the way into the clutch assembly, can't you just
cut it down?
I might be misunderstanding the issue...
[Edited on 16/9/09 by MikeRJ]
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flak monkey
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| posted on 16/9/09 at 09:30 AM |
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quote:
Originally posted by MikeRJ
Are you using a concentric slave? If so then surely the tube doesn't have to project all the way into the clutch assembly, can't you just
cut it down?
I might be misunderstanding the issue...
Not sure if its a good idea to cut the guide tube down TBH.
I need to have a play around tonight and see how much travel I have on the slave. If there is enough that the retracted position can be beyond the end
of the tube, then I may be able to do that.
I think you only need to depress the fingers about 1/4" to release the clutch.
Sera
http://www.motosera.com
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MikeRJ
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| posted on 16/9/09 at 01:10 PM |
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quote:
Originally posted by flak monkey
quote:
Originally posted by MikeRJ
Are you using a concentric slave? If so then surely the tube doesn't have to project all the way into the clutch assembly, can't you just
cut it down?
I might be misunderstanding the issue...
Not sure if its a good idea to cut the guide tube down TBH.
I guess it would depend on the design of the slave. The guide tubes function is to locate the original release bearing in the centre of the clutch.
If the concentric slave cylinder already locates the bearing sufficiently (as all the ones I have seen do) then the original tube is really
superfluous for this task.
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flak monkey
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| posted on 16/9/09 at 01:19 PM |
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Nooo I think you misunderstand.
The guide sleeve on the gearbox I have completely removed anyway.
This is the guide sleeve on the actual slave cylinder. This is the part which is too large OD to fit inside the bore of the fingers on the pressure
plate.
I have some hard turning equip for my lathe, so may give that a go first. If that fails, I will bring it an and have the fingers ground away a little.
Sera
http://www.motosera.com
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MikeRJ
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| posted on 16/9/09 at 01:28 PM |
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Ahh, it all becomes clear! Sorry for being thick.
Hmm, that is a problem. You might be able to remove a little bit of that guide, but you also have to remember that the fingers will move outwards as
the clutch wears.
Are you using a cover plate from a FWD application? They do tend to use very small release bearings compared to RWD.
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flak monkey
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| posted on 16/9/09 at 01:46 PM |
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Yes its a pressure plate from an RS Turbo.
I will mount the plate up in the lathe and hand grind some of the fingers away.
I am only looking at taking just over 1mm out of the bore. There is plenty of length for the release bearing to sit on
David
Sera
http://www.motosera.com
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