Upgrading Jeep YJ Brakes - Page 3 - JeepForum.com

Reply
 
LinkBack Thread Tools
post #31 of 40 Old 01-10-2012, 04:07 PM
Yarz
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2007
Location: Gibsonia, PA
Posts: 258
Quote:
Originally Posted by TSEJEEPERS View Post
I am running the 95 booster and the Mercury Marquis master. Yes it is possible.
I run disk brakes front and rear.
X2.. It is definitely do-able


"Build a man a fire, and he'll be warm for a day. Set a man on fire, and he'll be warm for the rest of his life."

1990 White YJ TBI350, SM465, NP231, SOA, RE 1.5" SOA springs, Ford 8.8, D30, 4.10's, JBConversions SYE, XJ shaft, Bilstein 5150s, jb4x4 steering, MORE SS brakelines, 35x12.50 15 MT's, '95 YJ Brake Booster, '78 Grand Marquis MC, ZJ Prop. Valve
Yarz is offline  
Sponsored Links
Advertisement
 
post #32 of 40 Old 01-10-2012, 04:23 PM
BLAZZIN
Registered User
1995 YJ Wrangler 
 
Join Date: May 2008
Posts: 27
I run the E-350 master cylinder on my 95 YJ with a J-10 Dana 44 front and a Ford 9 rear. I have no issues locking up my 36" Iroks, and my booster is from the 4 cylinder that was previously in my YJ.
BLAZZIN is offline  
post #33 of 40 Old 01-11-2012, 09:30 PM
mazyj
Registered User
1991 YJ Wrangler 
 
Join Date: Oct 2008
Location: Baltimore
Posts: 418
Quote:
Originally Posted by TSEJEEPERS View Post
I am running the 95 booster and the Mercury Marquis master. Yes it is possible.
I run disk brakes front and rear. Stock Waggy in front and stock YJ rotor with Chevy Motycarlo calipers in the rear. I can lock up my 36 inch Iroks no problem.
This is my write up.
http://www.mijc.org/phpBB3/viewtopic.php?f=6&t=2821&sid=998a6c8c3e2bc8966e13a a0161d1f214
I was speaking in a more bolt together sense, but either way I stand corrected.

91 wrangler 4.0L, 4 in Suspension lift, 1 inch Shackle Lift, 1 inch Body Lift, 35" BFG Mud Terrains, Warn Rockcrawler Front Bumper, Hand Throttle, HiLift, 12 pack of Natty Boh.
mazyj is offline  
post #34 of 40 Old 01-12-2012, 01:15 AM
DLWRUBI
Registered User
1993 YJ Wrangler 
 
Join Date: Aug 2011
Location: Union City
Posts: 576
No one recomending the Vanco big brake setup? From what I read, the weak link really seems to be the front calipers/rotors. The single piston caliper seems put all the pressure right in the middle of the pad not utilizing all the rotor to pad surface area. Adding more pressure through a booster/master setup may help you stop better but it's still a band aid IMO for the real issue. The stock master has enough pressure to already flex the knuckle. I would maybe at least talk to mrblain or Van about some options. If you do go for the master option I would also look at the centric rotors and black magic pads to go with it...
DLWRUBI is offline  
post #35 of 40 Old 01-12-2012, 04:03 AM
timatoe
Registered User
 
timatoe's Avatar
1990 YJ Wrangler 
 
Join Date: Aug 2006
Location: Grass Valley California
Posts: 14,835
Quote:
Originally Posted by DLWRUBI View Post
No one recomending the Vanco big brake setup? From what I read, the weak link really seems to be the front calipers/rotors. The single piston caliper seems put all the pressure right in the middle of the pad not utilizing all the rotor to pad surface area. Adding more pressure through a booster/master setup may help you stop better but it's still a band aid IMO for the real issue. The stock master has enough pressure to already flex the knuckle. I would maybe at least talk to mrblain or Van about some options. If you do go for the master option I would also look at the centric rotors and black magic pads to go with it...
Quote:
Originally Posted by Karma View Post
HI,
Kudos to you for being so responsible. Good brakes are a must and many modified Jeeps have horrible brakes. I don't care if they kill themselves but please, not other people. You know who you are.

I had the same problem and decided to go the hydroboost route. My brakes now work great with good sensitivity and stopping power. I have had zero problems in four years. I would say they are about as good as the original stock brakes, a huge improvement over where my brakes were before being modified.

Here is the site for the system I used:

http://www.vancopbs.com/category_s/66.htm
Give them a call. Vanco is very easy to work with.

Sparky

Quote:
Originally Posted by George Orwell
We sleep safe in our beds because rough men stand ready in the night to visit violence on those who would do us harm.
timatoe is offline  
post #36 of 40 Old 03-12-2012, 05:13 PM Thread Starter
ThreeHeadedYJ
Registered User
1993 YJ Wrangler 
 
Join Date: Nov 2010
Location: Pataskala
Posts: 134
okay im going to try and revive a dead thread here.. So i ended up buying the ebay unit and until recently it has been just sitting inside my living room. Last week i started the tear down and putting everything on. NOW here comes the point where i am completely stuck and not sure where to go from here...
The new system full with fluid, all lines connected, everything good to go, even bled the brakes multiple times.
but i have ABSOLUTELY NO PEDDLE PLAY.
the peddle all the way up moves at most 1/4" down at MOST!!
this is the first major brake job i have done and not sure what is wrong
With the lines that run through the jeep disconnected i have good peddle play just in the new vacuum booster and master. but when i connect the lines the peddle gets so stiff that it feels like the peddle would just break off before the jeep ever stopped...
WHAT is WRONG???!!
I am out of ideas

Its hip to be square
Full Metalcloak. Poison Spyder Trailgate & Rear Bumper. Custom Front Bumper. 3.5" Black Diamond. 35" Mtz. KC lights. Delta Headlights. Corbeau. Supper 44 Flowmaster Diamond plate. Savvy Tail lights. Superbrightleds.com. 8.8. 95 Booster w/ 1-1/8" MC
ThreeHeadedYJ is offline  
post #37 of 40 Old 03-13-2012, 05:18 PM
Yarz
Registered User
1990 YJ Wrangler 
 
Join Date: Jan 2007
Location: Gibsonia, PA
Posts: 258
Have you adjusted the screw between the booster and MC?

Oh, and is this with the jeep running or off? The pedal will get softer as the vacuum builds up when the jeep is running

"Build a man a fire, and he'll be warm for a day. Set a man on fire, and he'll be warm for the rest of his life."

1990 White YJ TBI350, SM465, NP231, SOA, RE 1.5" SOA springs, Ford 8.8, D30, 4.10's, JBConversions SYE, XJ shaft, Bilstein 5150s, jb4x4 steering, MORE SS brakelines, 35x12.50 15 MT's, '95 YJ Brake Booster, '78 Grand Marquis MC, ZJ Prop. Valve
Yarz is offline  
post #38 of 40 Old 03-22-2012, 01:36 PM Thread Starter
ThreeHeadedYJ
Registered User
1993 YJ Wrangler 
 
Join Date: Nov 2010
Location: Pataskala
Posts: 134
This is with the jeep running and with it off.
I adjusted the screw and it is all the way down still same problem
talked to mbm today and they said that it could possibly be the proportioning valve that is not working right
what i dont get though is that it was working before i put everything on, why would it now stop?
Going to put the stock booster back on today

Its hip to be square
Full Metalcloak. Poison Spyder Trailgate & Rear Bumper. Custom Front Bumper. 3.5" Black Diamond. 35" Mtz. KC lights. Delta Headlights. Corbeau. Supper 44 Flowmaster Diamond plate. Savvy Tail lights. Superbrightleds.com. 8.8. 95 Booster w/ 1-1/8" MC
ThreeHeadedYJ is offline  
post #39 of 40 Old 11-03-2013, 09:40 AM Thread Starter
ThreeHeadedYJ
Registered User
1993 YJ Wrangler 
 
Join Date: Nov 2010
Location: Pataskala
Posts: 134
Reviving an old thread here. I have been running the stock set up until now; when i finally found a decent priced 95 yj dual diaphragm booster. I am now matching that up with the M/C from the previous attempt. Here are some pics of the difference in size. Ill repost more later with details.

Name:  image-3297010410.jpg
Views: 144
Size:  530.0 KB

Its hip to be square
Full Metalcloak. Poison Spyder Trailgate & Rear Bumper. Custom Front Bumper. 3.5" Black Diamond. 35" Mtz. KC lights. Delta Headlights. Corbeau. Supper 44 Flowmaster Diamond plate. Savvy Tail lights. Superbrightleds.com. 8.8. 95 Booster w/ 1-1/8" MC
ThreeHeadedYJ is offline  
post #40 of 40 Old 11-09-2013, 01:53 PM Thread Starter
ThreeHeadedYJ
Registered User
1993 YJ Wrangler 
 
Join Date: Nov 2010
Location: Pataskala
Posts: 134
Okay, it all bolted up good. Had just enough room to squeeze in the new set up with my cold air.
When I first took it out the brakes had no urgency to them at all, stopping worse than before.
So I separated the MC from the Booster and screwed out the pin inside the booster to make it about 1/4 inch longer; allowing for the pin to just rest on the inside of the MC but not engaging the plunger. (see link for a write up)
http://www.pirate4x4.com/forum/jeep-...ade-yj-tj.html
Made myself a gasket for a good seal, and bolted it up and tried driving it again.
The brakes felt real good this time only there was a high pitched whistling sound coming from the connection of the booster and MC.
Discovered a "leak hole" that was purposely designed into the MC, Sealed the hole shut with some JB Weld and waited over night. (see link for write up)
http://www.bsfab.net/?p=58
Today I test drove it for a minute and am real happy with the results, the Jeep stops way better than before and I could even lock up the wheels if I needed to.
Will update if any issues arrive, aside from peeling my face away from the windshield.
In a couple weeks or so I think I am going to try the trick of removing the O-ring from the proportioning valve, opening it up for better fluid distribution (or so I am finding online)
Until then, here are some pictures (not mine) of some of the things mentioned above.
Attached Images
     

Its hip to be square
Full Metalcloak. Poison Spyder Trailgate & Rear Bumper. Custom Front Bumper. 3.5" Black Diamond. 35" Mtz. KC lights. Delta Headlights. Corbeau. Supper 44 Flowmaster Diamond plate. Savvy Tail lights. Superbrightleds.com. 8.8. 95 Booster w/ 1-1/8" MC
ThreeHeadedYJ 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



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Upgrading jeep parts.. what is the best order to do things.? cgseanp YJ Wrangler Technical Forum 5 10-01-2011 07:35 AM
How big before upgrading brakes? Toonces TJ Wrangler Technical Forum 20 03-04-2011 12:14 PM
thinkinb about upgrading my brakes. Dreso TJ Wrangler Technical Forum 5 11-18-2009 07:06 AM
Will upgrading my front disc brakes do more harm then good? usurp TJ Wrangler Technical Forum 16 12-05-2007 01:38 PM
upgrading the jeep looking for ideas? SamsonXD YJ Wrangler Technical Forum 4 11-10-2006 05:25 AM

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