[A4] Clutch Woes - Round 3

Richard Hurt rnhurt at gmail.com
Sun Jun 22 16:46:51 PDT 2008


I have my power bleeder built (yea!) and have given it a test run without
much success (boo!).  I had a few small leaks which I've (hopefully) fixed
and now I'm must waiting for the stuff to dry.  I do have a couple of
questions about the procedure though.  I used 10PSI just for a test and the
reservoir enlarged quite a bit under the pressure.  Is this normal?  What
happens when you pump it up to the recommended 30PSI?  Will it hold!?  Also,
I didn't get any fluid out of the slave at all.  I know its a low pressure
but I thought I might see something come out.  Do I have to pump the pedal
when pressure bleeding?

Man, I don't want to blow up my reservoir...  That would suck!!!*

On Thu, Jun 5, 2008 at 11:49 PM, richard valasek <rrv53 at comcast.net> wrote:

> Richard: You definitely need to power bleed the system--nothing esle will
> work--believe me I tried with ruined parts as a result.
> Richard
> 98 A$ 1.8tq
> ----- Original Message ----- From: "Richard Hurt" <rnhurt at gmail.com>
> To: "Nicholas Stock" <nickstock at gmail.com>
> Cc: "A4 Mailing List" <a4 at audifans.com>
> Sent: Tuesday, June 03, 2008 7:30 PM
> Subject: Re: [A4] Clutch Woes - Round 2
>  Thanks for the feedback.  I can confirm that there is no nipple on the
>> master cylinder as I just replaced it and have the old one to reference.
>> Bleeding from the slave nipple is what the Bentley recommends, however it
>> says to use the Audi power bleeder pumped up to 32 psi and open the slave
>> nipple and let 100cc of fluid out.  Almost all of my past vehicles have
>> recommended the pressure bleeder but none of them has required it.  I have
>> always been able to manual method it - until now.
>> Thanx!
>>  Richard
>> On Tue, Jun 3, 2008 at 10:22 PM, Nicholas Stock <nickstock at gmail.com>
>> wrote:
>>  Richard, on my 2000 A4 1.8T, there was a nipple on the top of the gearbox
>>> housing which I believe was the master cylinder bleed (I could be
>>> wrong..but
>>> fluid definitely came out under pressure, it's been a while!). I used a
>>> motive power bleeder when doing my brakes and bled the clutch at the same
>>> time (probably not that necessary..but I thought, what the hell...). I
>>> purchased the motive power bleeder from ECS tuning, but I'm sure you can
>>> find it elsewhere...hope this helps!
>>> Does the Bentley not indicate where the clutch bleed is?
>>> Regards,
>>> Nick
>>> On Tue, Jun 3, 2008 at 7:11 PM, Richard Hurt <rnhurt at gmail.com> wrote:
>>>  OK, I just replaced both the master & slave clutch cylinders on my '98 Q
>>>> 30v
>>>> and boy was it fun!  The master was by far the hardest and took a couple
>>>> of
>>>> hours.  The secret to my installation was to use the firewall seal/steel
>>>> washer off of the old master.  The new seal was too big for me to get in
>>>> properly.  I'm talking about the seal that goes around the main line
>>>> against
>>>> the firewall - it only keeps out the rain and drafts and should be fine
>>>> to
>>>> use the old one.  The slave was really not too bad at all.  I took off
>>>> the
>>>> drivers side front tire and had my Dad guide me in.
>>>> Now for the big question: how the hell do you bleed the clutch
>>>> system!?!?!
>>>> We tried the old 2-man manual method but didn't get anywhere.  We also
>>>> tried
>>>> the tube in a mason jar method with about the same results.  I looked a
>>>> little bit on-line and it seems like our cars (+ SAAB & Volvo) require a
>>>> pressure bleeder.  You can't use a vacuum bleeder because it just sucks
>>>> the
>>>> juice out of the master cylinder and I know that the manual method
>>>> doesn't
>>>> work.  All we got were some light puffs of air coming out of the system
>>>> but
>>>> the pedal still drops right to the floor with no resistance at all.
>>>> Can anybody point me in the right direction here?  Any recommendations
>>>> on
>>>> a
>>>> pressure bleeder?  How about a DIY model?  The manual says it needs a
>>>> pressure of 32 psi but that seems quite high to me.
>>>> Thanx!
>>>>  Richard
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