Brake pedal problems

Tiny
MIKE COLEMAN
  • MEMBER
  • 1984 JEEP CJ7
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 97,000 MILES
When I got this vehicle the pedal was hard to push down. So I had a friend at the parts house tell me the booster was gone, so I got a new one from Morris 4x4 put it on and now the pedal is real soft. So I changed out the master cylinder, still soft pedal. Put the old booster back on and now the pedal is hard again. I have not done anything to the brake system as far as shoes and pads. Any ideas?
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Tuesday, January 8th, 2019 AT 1:41 PM

5 Replies

Tiny
CJ MEDEVAC
  • EXPERT
Welcome to the world of the most perfect vehicle!

Do you know how to inspect/adjust/replace your rear drum brakes?

(It could be as simple as adjusting the slack out of the shoes)

What about bleeding the brakes?

This might be the time to check out the brakes on each wheel, they are actually what are stopping you.

Working on a CJ is actually easy/pleasing/and will have you strutting around like a bantam rooster in front of your friends.

A CJ is really inexpensive to maintain, even major fixes are far cheaper than fixing something minor on a modern vehicle.

The best thing is it will be here another 40 years if you take care of him! I don't see that with the modern stuff.

I've had nothing but CJs since I started driving in 1981. In 1991 I obtained and restored my sixth CJ-5 ('77) and my 1946 Willys (He's now 73 years old!)

What do you want to start with?

The Medic
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Tuesday, January 8th, 2019 AT 7:25 PM
Tiny
MIKE COLEMAN
  • MEMBER
I have not checked the shoes on the back but I will have not checked the pads on front will look at both and let you know. Thanks
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Wednesday, January 9th, 2019 AT 10:10 AM
Tiny
CJ MEDEVAC
  • EXPERT
If you know how,

With the drums off, turn the self adjuster star-wheel a little at a time (up, as viewed from the backside) This will expand your shoes outward.

Do this until your drum will barely slide on over the shoes. I mean a easy slide on, not having to beat it or force it on.

Do both sides.

This will take the slack out of the rear brake. Normally your self adjusters do this task. Many times the parts are worn and rusty and they cannot self adjust. Doing it manually from time to time will work okay until you can replace the old parts.

You will also notice that your emergency brake pedal will engage higher up when you push it.

The Medic
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Wednesday, January 9th, 2019 AT 7:30 PM
Tiny
MIKE COLEMAN
  • MEMBER
Thanks will let you know what I find.
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Thursday, January 10th, 2019 AT 5:32 AM
Tiny
CJ MEDEVAC
  • EXPERT
I'll be here!

The Medic
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Saturday, January 12th, 2019 AT 8:53 AM

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