Stiff brakes - JeepForum.com

 
LinkBack Thread Tools
post #1 of 8 Old 08-13-2013, 09:16 PM Thread Starter
Jsdtm
Registered User
1986 CJ7 
 
Join Date: Aug 2013
Location: Longwood
Posts: 23
Stiff brakes

Hi all. I am new to the forum and new to cj's. I recently purchased an 86 CJ 7 4.2 inline 6 automatic and my brakes are stiff and I have to mash them down HARD to get my jeep to stop. I don't have any leaks in my lines and I don't have the 8" disk on my MC, which from reading many posts I don't have a power booster. Is my MC bad in this case or anything else may be causing this? Any help would be appreciated. I have disc brakes in the front and drums in the back My jeep does not pull to any side when I mash the brakes just stiff as hell Thank you.

Jsdtm is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 08-13-2013, 09:37 PM
walkerhoundvm
Registered User
1981 CJ8 
 
Join Date: Apr 2010
Location: The Little Apple
Posts: 3,408
Welcome to the forum!! I'd be wondering if it just isn't a normal CJ braking system - you have manual brakes so it's not unheard of to have to press pretty dang hard to come to a complete stop.

To rule it out, you'll probably have to take a closer look at your brakes - everything from the pads to the rotor to the calipers. If all of that looks to be in good order, next step is to bleed the brakes, starting from those furthest from the MC (passenger rear) to those closest (drivers front) to make sure there aren't any air bubbles in the lines. Obviously make sure there's enough brake fluid in the MC. After that I'd worry about your master cylinder, unless there's obvious signs of leaking around the firewall mount.
walkerhoundvm is offline  
post #3 of 8 Old 08-14-2013, 05:29 AM Thread Starter
Jsdtm
Registered User
1986 CJ7 
 
Join Date: Aug 2013
Location: Longwood
Posts: 23
Ok thanks for the help. I will check all these out and post back. Thanks again!
Jsdtm is offline  
post #4 of 8 Old 08-14-2013, 07:24 AM
Redmanchew
Registered User
 
Redmanchew's Avatar
1982 CJ7 
 
Join Date: Oct 2006
Location: Central Virginia
Posts: 1,566
another quick question is what size tires are you running? Bigger tires/wheels will slow the whole procedure down.

1982 CJ-7 2003 4.3 chevy vortec, 4L60E, Clocked Dana 300 35 x 12.5 x 15 KM2 on Cragar 399's. Vanco Brake Booster. Power steering conversion. Warn front and rear bumpers with swing away. Moser 1 piece rears. Rear OX.

Support your local MS foundation. You don't know how much this disease sucks until it affects someone you love.

http://main.nationalmssociety.org/si...al&fr_id=18331

Quote:
Originally Posted by twoleos617 View Post
To reiterate for the 1,067th time, when towing...
remove rear axle, xfer in N, trans in 5th, remove neg batt cable, key to Run and go??
Redmanchew is offline  
post #5 of 8 Old 08-14-2013, 07:40 AM
WindKnot
Registered User
1977 CJ7 
 
Join Date: Mar 2011
Posts: 3,747
Has it been awhile since you've driven a vehicle without power brakes? Just about everything now days has them.

There is quite a difference between them. They CAN be converted.

I'd rather be lost on the trails than found at home!

Phoenix Rising- A Flame Off Restoration? http://www.jeepforum.com/forum/f8/ph...ation-1807257/
WindKnot is offline  
post #6 of 8 Old 08-14-2013, 07:50 AM
hotrod351
Registered User
1955 M-38 
 
Join Date: Oct 2006
Location: arizona
Posts: 463
agree, after bleeding and adjusting the brakes make sure you have the right master cylinder. i had a similar problem with a old bronco wrong MC made me really push down hard on the pedal to stop.
hotrod351 is offline  
post #7 of 8 Old 08-14-2013, 03:00 PM Thread Starter
Jsdtm
Registered User
1986 CJ7 
 
Join Date: Aug 2013
Location: Longwood
Posts: 23
I have 33x12.50r15s. I haven't ever driven a car without power breaks. The closest I've come is my 41 ford tractor and now that I think about it it's about the same. Haha. How do I know if the MC is the correct one? Doesn't look like I can get to working on it until the weekend. Darn Florida daily rain!
Jsdtm is offline  
post #8 of 8 Old 08-20-2013, 07:07 PM Thread Starter
Jsdtm
Registered User
1986 CJ7 
 
Join Date: Aug 2013
Location: Longwood
Posts: 23
Update: I bled the brakes and they are fine now. Thanks y'all
Jsdtm is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com 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 e-mail 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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 Off
Pingbacks are On
Refbacks are On

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