Clutch problems

Listers, o ye gawds of technowizardry--

In the repair of the damage caused to my '99 by the chain lash (when my chain failed just outside of Lawton, OK, three weeks ago), I am having trouble making my clutch work again.

Symptoms:

1)I've not gotten much push out of the system while bleeding it. It does not push much fluid.

2) That did not prevent me from bleeding the heck out of the system; at least one and a half reservoirs worth. While the bleeding nipple junction in my bleeding system is questionable, at least my attempts have pushed a cup of fluid through the system. But a squeeze still brings nothing.

The only part damaged by the chain coming apart, and that I could see, was on the casing that holds the slave cylinder. I replaced the casing, but the slave cylinder looked undamaged to me, so I re-used that one. BAD MOVE?? Might have I reinstalled it incorrectly? I added a very light layer of lubricant to the cylinder...was that a bad judgement?

3) When I re-placed the clutch rod back into its spot, it reached a solid end. I pushed a tad, but all it gave me in response was solid resistence--no flex, no movement. Is that correct? Could the problem be there, instead, as a result of a jam against a rod

Is there something I am missing here? I am clueless about what is creating this problem getting the clutch to work again. I could just end up trailering it to my dealer (beyond this point therye be dragons) except for your help.



Paul Nagy
'99 VFR800fi
Clovis, NM

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On 4 Jun, 2006, at 19:05, Nagy, Paul wrote:

> Listers, o ye gawds of technowizardry--
>
> In the repair of the damage caused to my '99 by the chain lash
> (when my chain failed just outside of Lawton, OK, three weeks ago),
> I am having trouble making my clutch work again.
>
> Symptoms:
>
> 1)I've not gotten much push out of the system while bleeding it.
> It does not push much fluid.

How is lever travel? Does it travel smoothly to the bar? is the
amount of fluid that it pushes consistent throughout its stroke?
>
> 2) That did not prevent me from bleeding the heck out of the
> system; at least one and a half reservoirs worth. While the
> bleeding nipple junction in my bleeding system is questionable, at
> least my attempts have pushed a cup of fluid through the system.
> But a squeeze still brings nothing.
>
> The only part damaged by the chain coming apart, and that I could
> see, was on the casing that holds the slave cylinder. I replaced
> the casing, but the slave cylinder looked undamaged to me, so I re-
> used that one. BAD MOVE?? Might have I reinstalled it
> incorrectly? I added a very light layer of lubricant to the
> cylinder...was that a bad judgement?
>
What lubricant did you use?

> 3) When I re-placed the clutch rod back into its spot, it reached a
> solid end. I pushed a tad, but all it gave me in response was
> solid resistence--no flex, no movement. Is that correct? Could
> the problem be there, instead, as a result of a jam against a rod
>
Did you check that the rod was installed with the correct orientation
(if it's not symmetrical)? We got this wrong on a BMW recently, and
the manual's diagram looked more like the incorrect installation than
the correct one. Did you check that the rod is not bent?

One means of checking the operation of the slave cylinder, which
seems likely to be conclusive in showing correct operation of the
slave cylinder, but which is a bit tricky, is to remove the cylinder
and hold it in your hand while squeezing the lever. You run the risk
of pushing the piston right out of the cylinder, but if there's a
bind in the operation, you should see it.

That's my thoughts, while half-asleep after teaching MSF this
weekend ;-), but I hope it's helpful.

later,
Johnj
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Hi Paul
FWIW, I remember reading in a manual or two to lubricate brake components
ONLY with clean brake fluid. I don't know what you used but I
can't imagine how the wrong lube could cause your symptoms unless it
gas softened the rubber seals.

Speaking of symptoms can you get the clutch to disengage if you pump
several times? Even with air in the system, my experience has been
that a bunch of lever pumps will evntually build up pressure. If you
are not getting significant pressure I think there must be a leak. If
fluid is not leaking at a joint or at the slave then the leak must be in the master cylindar.

Just my thoughts.....


Cheers,
Bob
Sunday, June 4, 2006, 6:05:27 PM, you wrote:
> Listers, o ye gawds of technowizardry--

> In the repair of the damage caused to my '99 by the chain lash (when my chain failed just outside of Lawton,
> OK, three weeks ago), I am having trouble making my clutch work again.

> Symptoms:

> 1)I've not gotten much push out of the system while bleeding it. It does not push much fluid.

> 2) That did not prevent me from bleeding the heck out of the system; at least one and a half reservoirs worth. While the bleeding nipple junction in my bleeding system is questionable, at least my
> attempts have pushed a cup of fluid through the system. But a squeeze still brings nothing.

> The only part damaged by the chain coming apart, and that I could see, was on the casing that holds the slave cylinder. I replaced the casing, but the slave cylinder looked undamaged to me, so I
> re-used that one. BAD MOVE?? Might have I reinstalled it incorrectly? I added a very light layer of lubricant to the cylinder...was that a bad judgement?

> 3) When I re-placed the clutch rod back into its spot, it reached a solid end. I pushed a tad, but all it gave me in response was solid resistence--no flex, no movement. Is that correct? Could
> the problem be there, instead, as a result of a jam against a rod

> Is there something I am missing here? I am clueless about what is creating this problem getting the clutch to work again. I could just end up trailering it to my dealer (beyond this point therye
> be dragons) except for your help.



> Paul Nagy
> '99 VFR800fi
> Clovis, NM

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