<VV> '61 Monza Brakes

[Frank DuVal]

I am also a proponent of bench bleeding, but he already has a stream at 
the wheel cylinders.

I have to ask:

Did you tighten the bleeder screws while somebody else was pressing the 
brake pedal? i.e. tighten the bleeder screw WHILE the pedal is being 
pushed, not after it reaches the floor.

You can buy a brass plug that fits the output of the master cylinder at 
the parts store. Something like a 1/4" inverted flare plug. Screw this 
into the master cylinder and see if the pedal is VERY firm. It should 
be. If not, short stroke the pedal and see if it gets hard. This is 
bench bleeding in place. If it gets hard and then goes to the floor 
again with the plug in place, something is bypassing in the master 
cylinder. Is the rubber seal (washer looking) in place waay down inside 
the cylinder? Are there now two seals? Remove one...

If this test passes, then there should be fluid flowing on the floor 
from a break in the line if all the air is out of the system. The brake 
drums are installed? Silly question, but you never know.....

Are you two person bleeding, Mighty Vac vacuum bleeding or rubber hose 
and bottle bleeding (old one man bleeder)? All these work fine. Teflon 
tape has been needed on the last few bleeder screws (new cylinders) to 
acheive a seal while Mighty Vac bleeding in my case.

Frank DuVal

Western Canada CORSA wrote:

>You didn't say whether or not you had started by bench bleeding the MC.
>
>Did you?
>
>Regards,
>Joel
>
>-----Original Message-----
>From: virtualvairs-bounces at corvair.org
>[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Kent Duncan
>Sent: Monday, October 29, 2007 7:07 PM
>To: virtualvairs at corvair.org
>Subject: <VV> '61 Monza Brakes
>
>
>With every new question I feel more like the newbie I
>am...
>
>I'm trying to rebuild the brakes on a '61 Monza.  I've
>replaced the wheel cylinders, hoses, and a couple of
>lines, and rebuilt the master cylinder.  I've bled the
>brakes well enough to achieve a solid stream of fluid
>at all four corners, but the system still won't "pressurize"--the pedal goes
>to the floor every time. 
>
>I pulled the now-rebuilt master cylinder apart to see
>what I might find, and it seemed like everything was
>in order, so I reassembled and re-installed.  No
>difference.  Next, I transferred the rebuild kit
>components to a second master cylinder off a parts
>car.  Still no change.  Three strikes and I'm out of
>ideas.
>
>Suggestions?  Thanks!
>
>Kent Duncan
>
>
>
>
>
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