how to bleed master cylinder?

[millertyme]

I haven't worked on my 87 5Kturbo yet, but I did replace the MC on my
'74 corvette.  I put on the new one, hooked up my pressure bleeder
(metal plate with rubber gasket, and 2 threaded tire valves.  Whole
assembly attached to the MC with 2 C-clamps).  Even with 40 psi on the
MC, I couldn't get the MC to bleed properly.  The wheels and lines had
no air, but the MC was still soft.  I had to remove it, clamp it in the
vice, operate the plunger with a brass drift, and hook up the 2 plastic
threaded plugs which were included with the MC and route 2 included
pieces of tygon back into the MC reservoir.  While pushing the plunger
with the drift, I was able to get all the air out of the MC piston.
This took about 40 pumps on the MC, but once the bubbles were gone, I
hooked up the MC, and I was done in about 10 minutes.
Just my experience
Later
Brian


-----Original Message-----
From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com] On
Behalf Of Per Lindgren
Sent: March 25, 2003 20:15
To: Ron Wainwright
Cc: quattro at audifans.com
Subject: Re: how to bleed master cylinder?

All the info I've heard before is that it is a waste of time, and a
complete mess to try to bleed it before you install it. Not only that,
but there really isnt any way you install it without getting any air in
the lines anyways.

Just my $0.02

PerL
87 Cq

Ron Wainwright wrote:

>  Listers,
>
>  I'm going to be replacing my master cylinder on my
>87 5ksq and would like to know how I would bleed it
>before bolting it to the car.
> Any BTDT would be great, I've looked at Scotts web
>site but no info on R&R.
>Thanks
>Ron
>87 5ksq many mods
>90 200tqa many mods
>
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