Master Cylinder - WTF?

[hareless at gmail.com (Sean Whalen)]

If you've got a long enough bleeding hose pull off one of your vacuum lines
and start the motor.  It may stink, but it's cheap and easy.  You can at the
very least start the flow this way, and then let them gravity bleed.

On 3/29/07, Brendan Doyle <lord_verminaard@yahoo.com> wrote:
>
> Silly question - was the new master pre-bled or "bench bled"?  I've heard
> that helps the process.  When I did the clutch master cylinder in my Camaro,
> it took a week straight and 3 liters of brake fluid of constant bleeding
> before I said "F" it and got a Mityvac and finished the job in 10
> minutes.  It might just be stubborn, sometimes getting the initial fluid
> flow started takes the longest.  Mityvacs are pretty cheap, and they have a
> million and one uses as well.  Not as simple as the power bleeders but
> better than the pump and twist method.  (ok that sounded bad!)
>
> Good luck!
> Brendan
> 84 Scirocco 8v <-- TDI in progress
> 01 Jeep TJ 4.0
>
>
> ----- Original Message ----
> From: Daun Yeagley <vwdaun@yahoo.com>
> To: scirocco-l@scirocco.org
> Sent: Wednesday, March 28, 2007 10:31:30 PM
> Subject: Master Cylinder - WTF?
>
> As some of you may know, I just installed a new master
> cylinder on Deiter, the '81 S.  It seems as though the old
> one was leaking fluid into the brake booster.  And yes, I
> replaced the brake booster with an unknown quantity used
> booster.  (Can't seem to get a new one now.)
>
> First attempt at bleeding the brakes resulted in the
> semi-expected snapped bleeder screws in the rear, so I
> replaced both wheel cylinders this evening.
>
> Filled the brake fluid reservoir and started at the right
> rear wheel to work the air out of the system.  I don't have
> a pressure bleeder, so I'm stuck with the old "someone pump
> the pedal while I turn the bleeder screw" routine.  After
> working my way around the car, I still have a brake pedal
> that shows no real resistance to going to the floor, AND it
> seems to have a "catch" in it about 2/3 of the way down.
> (Which was present when I started.)
>
> So now what?  Have I done something wrong here?
>
> Daun Yeagley - Wilmington Ohio
> '81 Scirocco S (Deiter)       '86 Scirocco 8v
> '88 Scirocco Slegato (Gino!)  '88 Scirocco 16v
> '96 Passat GLX Wagon          '56 Cessna 172
> The first rule of intelligent tinkering is to save all the parts -
> Ehrlich's Law.
>
>
>
>
>
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-- 
Sean
A-1 x 2