b3ngy
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| posted on 22/5/13 at 05:51 PM |
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BEC clutch...is this normal?
My hydraulic clutch on my mk hayabusa uses a bike rear brake master cylinder as the master cylinder for the clutch. When operating the clutch pedal,
the first half of the travel doesn't actually move the slave cylinder rod that moves the clutch, it acts more like a pre pressure build up in
the system as you still get some resistance in the pedal feel and i can see the flexi line move slightly as the pressure builds. Then the second half
of the pedal travel actually operates the clutch but it is a very small amount of travel in order to do this. (I hope that explanation makes sense to
someone)!
So my question is, is it normal for the clutch to operate like this or is there an underlying problem??? Would moving the pivot point on the pedal for
the mc help with getting a more direct and longer feel to the pedal??
Any help appreciated.
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minitici
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| posted on 22/5/13 at 06:10 PM |
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Doesn't sound right.
A hydraulic clutch should move from the start of the pedal push.
Is the clutch push rod in the gearbox long enough - especially if a different clutch slave bracket has been made to avoid a propshaft adaptor flange?
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b3ngy
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| posted on 22/5/13 at 06:26 PM |
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quote:
A hydraulic clutch should move from the start of the pedal push.
That was my understanding of how it should work as well.
I believe everything is ok push rod/bracket end. It seems to me like something hydraulic.....duff seal/wrong size mc or sc or something??
Someone must have experienced something like this??
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mark chandler
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| posted on 22/5/13 at 06:34 PM |
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Sounds like it has air in the system, the initial push is compressing the air against the resistance of the clutch before it starts moving.
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Proby
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| posted on 22/5/13 at 06:43 PM |
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^^ +1
Visit GraphicMonster
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yellowcab
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| posted on 22/5/13 at 06:47 PM |
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^^ +2
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b3ngy
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| posted on 23/5/13 at 03:06 AM |
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Fair comments guys, that had crossed my mind as well. I have spent hours bleeding the thing. Anyone got some good methods for bleeding the clutch up
or any good bits of kit to use that actually work! I think it would help if the mc had a bleed nipple on it!
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T66
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| posted on 23/5/13 at 06:38 AM |
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Have you considered a bleed nipple ? Cannot find a picture but my clutch slave banjo has a nipple added to it.
Found it
[Edited on 23/5/13 by T66]
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b3ngy
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| posted on 23/5/13 at 05:51 PM |
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My sc has a bleed nipple on it already, i'm wondering if there is air trapped in the mc. The mc doesn't have a bleed nipple. Looks like
i'm going to have to try bleeding the system again.
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