Brake Drag

So I had my dad drive the Jeep while I listened to it and I definitely heard some rattling in the passenger rear drum. We did the 10-15 forward and back stops to make the self adjusters adjust themselves. Noticed the passenger rear tire was locking up during the moderate brake applications. I held my foot on the pedal for 3 minutes per the factory manual troubleshooting diagrams and didn’t feel much of a difference in pedal feel but the brakes were definitely grabby.

That was all yesterday.

Today I took all of the drums off and did not see anything out of the ordinary other than the front drums being difficult to take off(they went back on fine)

I don’t have much experience with this so I’m a bit baffled

 

When it’s at its tightest, crack a bleeder front and back. See if fluid shoots out.

 

That’ll narrow it down as to whether it is a mechanical or a hydraulic issue right?

 

Basically. I’m really curious if it’s heat related, and if it’s predominantly front or back, and if that’s the circuit that is closest to the exhaust.

And if it is, I’d check why the back pressure isn’t feeding back into the reservoir. I think the piston should rest in a spot that would allow pressure to release.

 

Under normal circumstances there would be no fluid shooting out at all right?

 

Another diagnostic clue would be to do five minute drive, then check the temperature of each hub/drum. If one or more are hotter than the others, focus there first.

An infra-red thermometer is handy as a cat for doing this, but your fingers will suffice.

 

It should weep or dribble, but it shouldn’t be under enough pressure to shoot out with force.

 

I still have the old drums. Would it be worth it to swap those back on and see if it makes any difference?