[urq] Bad clutch master cylinder?

Max Hoepli mhoepli at vif.com
Fri Sep 16 17:39:22 EDT 2005


less than $150.00? I paid $172.00


----- Original Message ----- 
From: "Buchholz, Steven" <Steven.Buchholz at kla-tencor.com>
To: "urq" <urq at audifans.com>
Sent: 16, September 2005 17:29
Subject: Re: [urq] Bad clutch master cylinder?


> You've got a lot of symptoms ... which have varied possible culprits ...
> some of them contradictory ... but IMO very few of them point to a
> clutch M/C.
>
> ... that said ... on the topic of replacing the clutch M/C ... keep in
> mind that the M/C is easily rebuilt for considerably less than $150 ...
> >
> > I was wondering if folks could help me out with this one.  My car
> seems to be
> > having issues with the clutch.  Here are all the symptoms so far:
> >
> > - Gear lever is hard to pull into neutral after sitting over-night
> (initial
> > pull)
>
> [assumption] this is with the engine running.
> To my mind this is most likely due to cold lube in the transmission ...
>
> > - Car seem to pull forward slightly (with clutch in) in initial
> start-up, then
> > no problem
>
> This one is not that uncommon and is probably due to the clutch plate
> being a bit sticky on the splines ...
>
> > - Gear lever gets hard to pull out of 3rd gear after trans warms up
> (no issue
> > when cold)
>
> ... this one sounds like the first one ...
>
> > - No problems shifting into ANY gear
> > - No grinding sounds at all
> > - Trans shifts perfectly when cold
>
> These types of reports speak against a problem with the clutch M/C and
> slave functionality.  It sounds as though the clutch is being fully
> disengaged.
> >
> > I bled the clutch the other day and noticed air bubbles in the bleeder
> line
> > when my buddy pumped the clutch.  I can't help but think the seals in
> the MC
> > might be bad.  I would like to verify before I order this $150 part
> though.
> >
> ... this seems so odd to me ... there does not tend to be much suction
> in the clutch hydraulic system to promote leaks ... if there's a problem
> letting air in without pressure, I'm inclined to believe that you'd also
> see fluid leaking out when it
>
> I assume that you've completely gone over the shift linkage ...
> replacing any wobbly ball joints and worn plastic bits.  You may have a
> bit of stickiness inside the bellhousing ... but even that's not
> completely clear based on your symptoms.
>
> Happy hunting!
> Steve B
> San Jose, CA (USA)
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