On 4/21/07, *Leo John Costigan* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
What's The Problem?
Distribution Block
Proportion Valve
Combination Valve
They all have the safety valve that closed off the defective side
of the brake system to prevent all fluid loss and complete loss of
brakes. The valve has to be returned to natural so that fluid can
flow to both front and rear brakes.
Leo
----- Original Message -----
*From:* Trooper <mailto:[EMAIL PROTECTED]>
*To:* The Chevelle Mailing List
<mailto:chevelle-list@chevelles.net>
*Sent:* Saturday, April 21, 2007 9:46 AM
*Subject:* Re: [Chevelle-list] Help bleeding brakes
If it's on a 69 he's describing the distribution block. Both
the distribution block in 69 and 70 and the prop valve 71 - 72
have 2 inputs, 3 outputs, 1 idiot wire plug-in (currently not
utilized)"
Trooper
----- Original Message -----
*From:* Leo John Costigan <mailto:[EMAIL PROTECTED]>
*To:* The Chevelle Mailing List
<mailto:chevelle-list@chevelles.net>
*Sent:* Saturday, April 21, 2007 11:40 AM
*Subject:* Re: [Chevelle-list] Help bleeding brakes
Trooper he says that he has a connection on his valve.
"2 inputs, 3 outputs, 1 idiot wire plug-in (currently not
utilized)"
Leo
----- Original Message -----
*From:* Trooper <mailto:[EMAIL PROTECTED]>
*To:* The Chevelle Mailing List
<mailto:chevelle-list@chevelles.net>
*Sent:* Saturday, April 21, 2007 9:35 AM
*Subject:* Re: [Chevelle-list] Help bleeding brakes
Can't do this on a 69. As described in my previous
post, the prop valve has no idiot light connection in
69 or 70.
Trooper
----- Original Message -----
*From:* Leo John Costigan
<mailto:[EMAIL PROTECTED]>
*To:* The Chevelle Mailing List
<mailto:chevelle-list@chevelles.net>
*Sent:* Saturday, April 21, 2007 11:27 AM
*Subject:* Re: [Chevelle-list] Help bleeding brakes
Mike, On the prop valve the idiot wire plug-in
(currently not utilized) turns on the brake light
on the dash to tell you that you have a problem
with the brake system. A valve underneath the plug
will slide in the direction where the pressure is
the lowest, a leak either in the front or rear
line section. When that valve moves it will block
any more fluid going to the leaking or
low-pressure side of the prop valve. You need to
return the valve underneath the plug back to the
center so that fluid will flow to the front and
rear brakes.
What you have sounds like the valve has closed off
the rear brakes. Fluid will go the front but not
the rear. The Prop valve will provide a ground
for the light. You can connect a test light to the
plug. If the valve has moved to close off a
section of the brake lines the light will light.
With the test light connected the plug open a
front line and slowly apply pressure at the brake
pedal and watch the light. If it flickers and
stays on the valve has slid to the opposite side.
You should be able to bleed the rears now but not
the front. What you want is to have the test light
out. You may have to open the rear line and repeat
the apply brake pedal slowly while watching the
light until it stay out.
At some point in time the brake pedal was applied
with a leak or open line to the rear brakes and
the prop valve closed off the rear brakes. When
the prop valve closes off either side it is for
safety and you will have at least half of the
braking system to stop the vehicle.
Try the test light to see if the prop valve has
slid to either side.
Leo
----- Original Message -----
*From:* Michael Pell
<mailto:[EMAIL PROTECTED]>
*To:* The Chevelle Mailing List
<mailto:chevelle-list@chevelles.net>
*Sent:* Friday, April 20, 2007 8:04 PM
*Subject:* Re: [Chevelle-list] Help bleeding
brakes
The Prop valve is from a '69, I think. No
such pin as you mention. 2 inputs, 3 outputs,
1 idiot wire plug-in (currently not utilized).
I took the 1st MC back, and got another just
like it. It seems to be working better.
I finally got the fronts to bleed!!! And the
front wheels are done. This has not been fun.
Now the rears won't bleed at all, haven't
moved an ounce from the resevoir. I can see
bubbles move forward/back as the pedal is
pumped (1 man bleed kit), so I know that the
lines are clear and not kinked. At least some
air is getting moved at the rear wheel
cylinder as the pedal is pumped.
I did bench bleed the MC, that went fine.
I'm going to let it sitt over night hoping to
let the gravity do it's thing.
I don't think I've ever had this much trouble
bleeding brakes!!
Thanks for the suggestions.
Mike
--
I would rather live my life as if there is a God, and die to find out there
isn't, Than live my
life as if there isn't, And die to find out there is. -Blaise Pascal
Check out my webpage at http://www.ProStreetCar.com <http://www.prostreetcar.com/>
TREMEC Distributor at http://www.5speedTransmissions.com
<http://www.5speedtransmissions.com/>
Team Chevelle member #1778 (Gold), ACES member #1377
Hoosier State Chevelle Assoc (http://www.IndianaChevelles.com
<http://www.indianachevelles.com/>) #6
Rick Schaefer wrote:
Mike
What year? And where can you not get
fluid? Front/rear/both?
For 72 anyway, there is a pin on the
proportioning valve that must be pressed in
to get flow to the rear.
On 4/20/07, *Michael Pell*
<[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Thanks, but what do you mean by 'off center"?
--
I would rather live my life as if there
is a God, and die to find out there
isn't, Than live my
life as if there isn't, And die to find
out there is. -Blaise Pascal
Check out my webpage at
http://www.ProStreetCar.com
<http://www.prostreetcar.com/>
TREMEC Distributor at
http://www.5speedTransmissions.com
<http://www.5speedtransmissions.com/>
Team Chevelle member #1778 (Gold), ACES
member #1377
Hoosier State Chevelle Assoc
(http://www.IndianaChevelles.com
<http://www.indianachevelles.com/>) #6
Mark Tibbits wrote:
What brake lines did you replace? The
por. valve might be off centered
is the brake light on? You might have to
have to press. bleed the
system.If you are bleeding the fronts
you might have to bleed the rear
first. Some times if the por. valve is
off center you can drive the
car as long as you have some brake pedal
and then try again. If the
brake light is on the por, vale is off
center.
----- Original Message ----- From:
"Michael Pell"
<[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>>
To: "ChevelleList" <
chevelle-list@chevelles.net
<mailto:chevelle-list@chevelles.net>>
Sent: Thursday, April 19, 2007 7:59 PM
Subject: [Chevelle-list] Help bleeding
brakes
I replaced the MC and and brake lines,
and can't get any fluid to
flow through the lines.
I did successfully bleed the MC
seperately, so I know that part is
working.
I even , gulp, read the
directions. Open the bleeder open on the
brake pedal downstroke, close it before
brake pedal gets to the bottom.
I can hear and see the air moving a bit
in the clear hose from the
bleeder to the cup .
Any tips on how to get the fluid down
the lines?
Thanks,
Mike
--
--
I would rather live my life as if
there is a God, and die to find
out there isn't, Than live my
life as if there isn't, And die to
find out there is. -Blaise Pascal
Check out my webpage at
http://www.ProStreetCar.com
<http://www.prostreetcar.com/>
TREMEC Distributor at
http://www.5speedTransmissions.com
<http://www.5speedtransmissions.com/>
Team Chevelle member #1778
(Gold), ACES member #1377
Hoosier State Chevelle Assoc (
http://www.IndianaChevelles.com
<http://www.indianachevelles.com/>) #6
--
Rick Schaefer
72 TPI El Camino
------------------------------------------------------------------------
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Version: 7.5.446 / Virus Database: 269.5.5/769 - Release Date: 4/19/2007 5:56 PM
--
Rick Schaefer
72 TPI El Camino
------------------------------------------------------------------------
Checked by AVG Free Edition.
Version: 7.5.463 / Virus Database: 269.5.6/770 - Release Date: 4/20/2007 6:43 PM
