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Unread 04-07-2014, 09:35 AM   #1
243
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First PANIC STOP today...not good!

I was on my way back to the office after seeing the eye doc', five lanes with one of the five a suicide lane. I was in the left of the two lanes headed south going 47 in a 45 and I saw a vehicle try to jump across from my right, I stood on the brakes but passed her by.

If she had not stopped in the right lane I would have t-boned her without a doubt. One of those fairly rare scenarios where my teeth immediately begin to hurt and I feel sick.

The factory CJ brakes are not good enough for me, at least I feel it takes too much pedal pressure and takes too much distance to stop. I am not comparing the CJ to one vehicle, I drive three of four office vehicles, the Cherokee, the Nissan, both of my daughter's cars as well as my parents vehicles and all of these in the last two months.

I am thinking I will fabricate my own bracket to mount a dual diaphragm YJ booster out of plate and round pipe. I think that will be a fast and fairly easy upgrade and building my own bracket may eliminate modifying the push rod; and, it will eliminate ordering a firewall boot solving another nagging problem.

The entire brake system is new except for the combination valve including the calipers, pads, hoses, lines, drums, shoes, hardware and cylinders, booster and master cylinder. I don't believe the brake system is faulty but your comments are welcome.

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Unread 04-07-2014, 10:00 AM   #2
grantsjeep
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First off I just want to say I'm glad to hear that you are ok! Second what brakes do you have? Front Disc etc? I know some simple modifications can be just upgrading the rotors and brake pads. Also getting steel braided brake lines will help as well.

-Grant
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Unread 04-07-2014, 11:08 AM   #3
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Grant, I have disc front drum rear with standard semi-metallic pads and shoes.
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Unread 04-07-2014, 11:17 AM   #4
roadhog304
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What is a "suicide lane"? Have you considered adding a hydroboost system? They will put you through the windshield if you are not careful.
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Unread 04-07-2014, 11:25 AM   #5
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Here is a troubleshooting link to help you figure it out.
To add a couple items to the chart, shoes not adjusted properly, worn out drums, or the master cylinder to booster rod may need adjusting.

http://www.classicperform.com/TechBo...oubleshoot.htm
untitled.jpg

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Unread 04-07-2014, 12:25 PM   #6
SgtJensen
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Navajo Brake Booster from Off Again Offroad. I bolted one into my 82 with front disc/rear drum, and it stops like a champ now. HIGHLY recommended.
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Unread 04-07-2014, 12:48 PM   #7
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Quote:
Originally Posted by Centerfire View Post
Here is a troubleshooting link to help you figure it out.
To add a couple items to the chart, shoes not adjusted properly, worn out drums, or the master cylinder to booster rod may need adjusting.

http://www.classicperform.com/TechBo...oubleshoot.htm
Thanks for the link, back brakes will lock if I really put my foot on the pedal, there is not adjustment on the booster/pedal rod.

I will run the troubleshooting guide on the booster this evening.


Quote:
Originally Posted by SgtJensen View Post
Navajo Brake Booster from Off Again Offroad. I bolted one into my 82 with front disc/rear drum, and it stops like a champ now. HIGHLY recommended.
I have seen those and will look at them again.
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Unread 04-07-2014, 01:24 PM   #8
SgtJensen
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Ask for Cody when you call, he'll ask you a few questions about your rig, and get one together for YOUR needs. He will also answer any questions you have during the install and what not.
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Unread 04-07-2014, 02:03 PM   #9
LumpyGrits
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32" tires and those baby sized rear drums, are not ever go'n to cut it.
You have PB or manual brakes?
LG
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Unread 04-07-2014, 02:18 PM   #10
Matt1981CJ7
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Does anyone happen to know if the Navajo Brake Booster will work with the factory non-boosted air cleaner assembly?

Thanks,

Matt
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Unread 04-07-2014, 02:23 PM   #11
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I have factory power brakes.
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Unread 04-07-2014, 03:05 PM   #12
LumpyGrits
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IF, you don't have the braking surface to start with(AMC, mod 20 rear DOESN'T!). All the 'boosters' in the world won't do much. Larger tires just make it worst.
LG
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Unread 04-07-2014, 04:24 PM   #13
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Quote:
Originally Posted by LumpyGrits View Post
IF, you don't have the braking surface to start with(AMC, mod 20 rear DOESN'T!). All the 'boosters' in the world won't do much. Larger tires just make it worst.
LG
I have 35" tires, and mine will stop harder than I would ever want to try to control in a panic stop. The only upgrade I did is a YJ booster.
11"x2" drums on the rear of my 20. What size are stock on the 44 or 9"?
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Unread 04-07-2014, 04:39 PM   #14
Matt1981CJ7
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Quote:
Originally Posted by LumpyGrits View Post
32" tires and those baby sized rear drums, are not ever go'n to cut it. LG
Nonsense. My non-boosted factory breaks, and stock 20, will easily lock up my 32"s with only moderate force.

I'm tired of the AMC 20 bashing.

Matt
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Unread 04-07-2014, 04:58 PM   #15
LumpyGrits
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The brakes on the '20' are min. at best and over heat quickly.
The 20 get's 'punched' for what it is. A 'piece' of work made buy 'bean-counters'.
BTW: the OEM rear brakes on a '20' are not 11x2''. They are 10" X 1 3/4" shoe. That's allot of braking difference, between the 2 sizes.
The Currie '9' are 11" x 2 1/4" shoe
LG
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