Brake Hold off valve - Chevelle Tech
Brakes, Suspension & Steering Conversion questions & more.

 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 4 (permalink) Old Mar 25th, 20, 6:38 PM Thread Starter
 
Join Date: May 2018
Posts: 25
Brake Hold off valve

This is a brake question I had because I was having issues bleeding my rear brakes using a new hold off valve I had purchased. On the 70s there is a rear hold off valve used to delay rear breaking and therefore preventing premature rear brake lockup. This is located in the back of the car right before the brake line tees and goes to the rear brakes.

Does anyone know what pressure this hold off valve is supposed to get too before allowing fluid flow and therefore rear brake engagement?

Thanks.
Oreo C is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old Mar 25th, 20, 8:59 PM
Team Member
Bill
 
Join Date: Jan 2018
Location: Boston Area
Posts: 810
Garage
Re: Brake Hold off valve

Try this procedure

https://itstillruns.com/proportionin...-12040941.html
Billdini is offline  
post #3 of 4 (permalink) Old Mar 25th, 20, 10:49 PM
Senior Tech Team
Bruce
 
Join Date: Jun 2006
Location: White Bear Lake, a northeast suburb of St. Paul, MinneSNOWta
Posts: 5,115
Garage
Re: Brake Hold off valve

The first time I tried to bleed the brakes on my '69 I was forced to disconnect the front to rear line and blow it out with compressed air -- I was shocked when a wad of crap came out of the line. The line was totally blocked (and I'd just driven the car 11 hundred miles on Interstates)!

Just an idea "outside the box," so to speak.

Our You Tube Vids:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


Last edited by LevonH; Mar 26th, 20 at 12:00 AM.
NickeyChevelle is offline  
 
post #4 of 4 (permalink) Old Mar 30th, 20, 10:03 PM Thread Starter
 
Join Date: May 2018
Posts: 25
Thanks for the info. I’ll be using both of your advice. Thanks.
Oreo C is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevelle Tech 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. Note, you will be sent a confirmation request to this address.

Email Address:
OR

Log-in










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

Advanced Search
Display Modes
Linear Mode Linear Mode



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 On

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