Residual pressure valve removal? - Vintage Mustang Forums
 
Thread Tools
post #1 of 7 (permalink) Old 08-26-2009, 01:42 PM Thread Starter
Senior Member
 
ripped's Avatar
 
Join Date: Dec 2004
Location: BC
Posts: 1,984
Residual pressure valve removal?

I have a maverick master cylinder on the 'stang. With the rear discs, I don't need a residual pressure valve.
How do I remove the one that is in there (if it is)?


Project 487 Super Snake - '67 Shelby GT500 Pro Touring Beast

Thunder - The Restoration Video From Start To Finish - 6 1/2 Years in Four Minutes
ripped is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 08-26-2009, 07:06 PM
Senior Member
 
Red66GTCoupe's Avatar
 
Join Date: Jul 2001
Location: Reno, NV
Posts: 2,438
Most drum/disc systems have a junction block not in the MC. I'm not familiar with the maverick mc though. All you need to do if it's a junction block is take the nut off the front and take out the plunger and springs and put the nut back on. Now it just becomes a t-fitting.

http://www.ssstangs.com/gallery/albu...BozeSigPic.jpg

1966 GT Coupe - See it here>>> My 66 GT
1989 GT Convertible - More mods than my 66! Click it>>>My 89 GT
1999 Powerstroke>>>>>>Monster Truck
2002 Mercedes E430 SE
Red66GTCoupe is offline  
post #3 of 7 (permalink) Old 08-27-2009, 01:56 AM Thread Starter
Senior Member
 
ripped's Avatar
 
Join Date: Dec 2004
Location: BC
Posts: 1,984
thanks, I was under the impression that some m/c had residual valves built into them


Project 487 Super Snake - '67 Shelby GT500 Pro Touring Beast

Thunder - The Restoration Video From Start To Finish - 6 1/2 Years in Four Minutes
ripped is offline  
post #4 of 7 (permalink) Old 08-27-2009, 06:23 AM
Senior Member
 
ynned's Avatar
 
Join Date: Nov 2007
Location: N.E. Ohio
Posts: 1,361
Quote:
Originally Posted by Ripped
thanks, I was under the impression that some m/c had residual valves built into them
Yes, they do. Many service replacements, however, don't. The flare seat can be removed from the MC by turning a small screw into the orfice, then pulling the entire fitting out.
Here's the seat and valve removed:

Here's a (poorly focused) picture of the valve in the MC after the seat was removed:

Here's an MC with no valve after removal of the seat:

The first MC was from a '67 Mustang, either original, or at the newest from the mid-seventies.
The second MC was a NAPA service replacement for '75-'79 Granada purchased around2004-2005.
As you can see, although the Granada had rear drums, there was no res pressure valve. I don't know how one might figure out if you have the valve or not without physically pulling the seat out. As with most things Ford, nothing is clear or easy.

Dennis Harrelson
65 2+2, owned since '72
Lots of mods, now just another sad project hoping for resurrection.
http://i266.photobucket.com/albums/i...8/P7071313.jpg
ynned is offline  
post #5 of 7 (permalink) Old 08-27-2009, 01:44 PM Thread Starter
Senior Member
 
ripped's Avatar
 
Join Date: Dec 2004
Location: BC
Posts: 1,984
thanks

that answers the question


Project 487 Super Snake - '67 Shelby GT500 Pro Touring Beast

Thunder - The Restoration Video From Start To Finish - 6 1/2 Years in Four Minutes
ripped is offline  
post #6 of 7 (permalink) Old 08-27-2009, 03:36 PM
Senior Member
 
Join Date: Sep 2005
Location: Middle TN
Posts: 973
Garage
Good post Dennis. I went through this a few years ago. I ended up with a master cylinder off a 1992 Dodge Caravan. I pulled the brass flares out and there was nothing behind them.

67 coupe Turbo Blow-thru 351w, C4, 8.8 http://www.cardomain.com/ride/2435094
brianj5600 is offline  
post #7 of 7 (permalink) Old 08-29-2009, 12:57 AM
Senior Member
 
Red66GTCoupe's Avatar
 
Join Date: Jul 2001
Location: Reno, NV
Posts: 2,438
Good stuff to know. Thanks for the post Dennis.

http://www.ssstangs.com/gallery/albu...BozeSigPic.jpg

1966 GT Coupe - See it here>>> My 66 GT
1989 GT Convertible - More mods than my 66! Click it>>>My 89 GT
1999 Powerstroke>>>>>>Monster Truck
2002 Mercedes E430 SE
Red66GTCoupe is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Vintage Mustang Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome