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Author: Subject: Hydraulic Clutch Feel and Travel
davidimurray

posted on 28/12/14 at 01:32 PM Reply With Quote
Hydraulic Clutch Feel and Travel

Apologises for the stupid question, but all the cars in the house have a cable clutch.

Getting the hydraulic clutch setup on my Duratec. Have bled the system, both manually and with an easibleed and there is no more air coming out. If I turn the prop you can feel the clutch disengaging about halfway down the pedal travel. The pedal itself is very hard to move by hand, but feels very light under foot. It also travels easily for about 90% of the travel and then gets stiffer in the last 10%. The pedal uses the full travel of the M/C every time.

Is it normal for the pedal to use the full travel?

Cheers

Dave





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CosKev3

posted on 28/12/14 at 02:19 PM Reply With Quote
Hyd clutch in my VRS and her in doors VXR feel the same the full pedal travel, doesn't go stiffer near the end.

Have you got a mismatch between mc and slave capacity?

Or need a pedal stop fitted?

No expert but at a guess I would think that when the pedal goes stiffer your slave cylinder is fully out, so your last 10% of pedal travel is doing nothing and just risking blowing some seals?

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adithorp

posted on 28/12/14 at 05:12 PM Reply With Quote
Sounds like you've got too much travel and it's over-throwing the clutch. Once the pressure plate has moved it's full range things start to feel stiff as you're forcing it further.

Either fit a smaller bore master cylinder (which will also make it lighter) or a pedal stop to restrict the throw.





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big-vee-twin

posted on 28/12/14 at 06:00 PM Reply With Quote
Have you fitted the required spacer behind the slave cylinder i.e. between master cylinder and Bell housing mine is a12mm thick one?





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flak monkey

posted on 28/12/14 at 07:11 PM Reply With Quote
You need a pedal stop, you have too much travel on the slave cylinder. I had a similar problem on mine and just fitted an adjustable stop to get it just right.





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perksy

posted on 28/12/14 at 07:18 PM Reply With Quote
As above you need a pedal stop.

You may need a spacer aswell depending on your set-up.

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davidimurray

posted on 28/12/14 at 09:54 PM Reply With Quote
Thanks everyone, have modified the old cable clutch stop to suit the new pedal.

On the spacer front my bellhousing (of unknown origin) seems to have extra meat in and when I test fitted it there was at least 20mm of compression of the clutch slave so I have not fitted a spacer. As I said the clutch disengages about halfway down the pedal travel.

Cheers

Davew





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