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  1. #1
    Senior Member Two Rings Lanorg's Avatar
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    Apr 22 2013
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    113795
    My Garage
    Floor jacks, torque wrenches, and winter tires
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    Toronto

    Clutch bleeding issue

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    My slave cylinder refuses to bleed to the point that fluid comes out. I had someone press the clutch while i bled from underneath but nothing but air comes out. Check all 4 corners and the brakes bleed just fine. Any suggestions? Leaving it sit level overnight doesn't bleed it. Brand new slave cylinder.

    Do I have to put a significant angle on it? And yes I read the Jay B Quick JHM clutch slave bleed article. Very informative but I can't get anything but air coming out of my slave line. Open to suggestions.
    B5

  2. #2
    Veteran Member Three Rings
    Join Date
    Jul 07 2009
    AZ Member #
    44685
    Location
    Alberta, Canada

    How many rotations on the bleeder? In my experience the plastic ones need at least one full turn to get fluid coming out. Hard to say exact because I'm usually doing it by feel from the top.

    Using same line as before? Why the replacement?

    If it's a completely fresh system I always crack the bleeder, push pedal to floor. Close bleeder, pull pedal up. Repeat until fluid comes out. Then start bleeding by the standard pump-pump-crack method.

  3. #3
    Veteran Member Four Rings zillarob's Avatar
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    Nov 16 2010
    AZ Member #
    67118
    My Garage
    2kS4, 84gli, 84caddy dsl
    Location
    WetSide, WA

    That dont sound good if it wont gravity bleed. Make sure the pedal is up when you are doing this.
    Like jvd said, they can take a few turns to make sure they are open. (9mm, people like to use 10mm and strip them iirc)

    There really shouldnt be any magic to bleeding these things, they pretty much bleed themselves.
    I always gravity bleed until I see decent fluid, close the bleeder, pump the pedal about a dozen times, and good by the time I get back from a trip around the block.

    Only had 1 that didnt work like this, and that was because somebody had the slave line was wrapped around the psteer line.
    There are only 2 things needed to make an Audi work properly - Duct tape and WD40. If it moves and it shouldn't - Duct tape. If it doesn’t move and it should - WD40.

  4. #4
    Senior Member Two Rings Lanorg's Avatar
    Join Date
    Apr 22 2013
    AZ Member #
    113795
    My Garage
    Floor jacks, torque wrenches, and winter tires
    Location
    Toronto

    Thanks guys but I tried the pedal pump and bleed method after it didn't gravity bleed itself. I can hear air coming out of it when I do this but the fluid never arrives.
    *roatations: 1.25-1.5x
    *pedal was down I suspect. Tonight I will leave it pedal up to see of it bleeds. Left it for 30 minutes pedal up and it didn't bleed. Perhaps it's not actually level?

    It was replaced because I knocked the transmission and cracked the previous slave cylinder while it was attached to the tranny - another great reason why you remove the slave from the bellhousing before pulling the engine/tranny unit. Whatever, my first time. Just trying to get the thing back on the road. My starter locked up and a bunch of penetrating grease and anti seize later and it rotated the engine as it is now engaging with the flywheel. Pretty stoked to get this thing fired up after I cycle the oil a bunch.
    Last edited by Lanorg; 08-30-2016 at 08:34 PM.
    B5

  5. #5
    Veteran Member Four Rings zillarob's Avatar
    Join Date
    Nov 16 2010
    AZ Member #
    67118
    My Garage
    2kS4, 84gli, 84caddy dsl
    Location
    WetSide, WA

    You prob got this covered, but just to be safe
    Make sure the res is full of fluid while you bleed, the clutch doesnt pull from the bottom like the brakes do.
    Safety thing so a clutch problem wont drain the res and take the brakes out.

    Best of luck with that starter, but I would have had it rebuilt or replaced it.
    There are only 2 things needed to make an Audi work properly - Duct tape and WD40. If it moves and it shouldn't - Duct tape. If it doesn’t move and it should - WD40.

  6. #6
    Senior Member Two Rings Lanorg's Avatar
    Join Date
    Apr 22 2013
    AZ Member #
    113795
    My Garage
    Floor jacks, torque wrenches, and winter tires
    Location
    Toronto

    Ya it bled perfectly when I brought the pedal back up. I made sure to keep the reservoir filled - I did bleed all the brakes so I went through half a bottle.

    Smacked the starter around and lubed it, reinstalled and it worked like a charm. Car only has ~105k km/~65k mi so a starter rebuild is not something I'm going to rebuild/replace in until it's absolutely necessary.

    Now I'm chasing a valve cover oil leak and ESp&ABS lights on, but god damn it's nice to hear the thing idle!
    B5

  7. #7
    Veteran Member Three Rings
    Join Date
    Jul 07 2009
    AZ Member #
    44685
    Location
    Alberta, Canada



    Good job, man.

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