Brake drum heating up
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Mountain Pass
Joined: May 2002
Posts: 141
Likes: 0
From: Beaverton
Brake drum heating up
Ever since replacement of the LR wheel bearing that brake drum runs hotter than all the others. Shoes were replaced on both rears, Drums and shoes were done on both fronts. Plus the LR and RR wheel bearings.
I adjusted the notch wheel on the RR brake and now it runs fairly cool, similar to the fronts. But this LR drum runs so hot I can't touch it 5 minutes after I park. I tried adjusting the notch wheel more and more and it doesn't help. '
What is goind on ? Truck seems to brake fine. E-brake works also...
I adjusted the notch wheel on the RR brake and now it runs fairly cool, similar to the fronts. But this LR drum runs so hot I can't touch it 5 minutes after I park. I tried adjusting the notch wheel more and more and it doesn't help. '
What is goind on ? Truck seems to brake fine. E-brake works also...
Postmaster
Joined: Apr 2002
Posts: 3,613
Likes: 6
From: Coal country
Did you possibly put the brake shoes on incorrectly?
The long padded shoe goes on the rear and the short one to the front.
Also, make sure you didn't put 2 longs on one side and 2 shorts on the other.
Is the adjuster working OK?
I would pull the drum and check everything to make sure all is OK.
The long padded shoe goes on the rear and the short one to the front.
Also, make sure you didn't put 2 longs on one side and 2 shorts on the other.
Is the adjuster working OK?
I would pull the drum and check everything to make sure all is OK.
Posting Guru
Joined: Jul 2003
Posts: 2,222
Likes: 1
From: East Central Florida
prginocx
I'd make sure parking brake cable works freely. If it does not allow the brakes to relax when it's released, shoes will drag and or lock up causing excess heating.
Also double check to be sure you've replaced all the internal hardware correctly as there are 2 different return systems, the foot brake return system and the park brake return system. Flipping or mixing return springs creates this symptom too.
Another common glitch is having a shoe frame drop off one of the stamped glides in the backing plate causint the shoe to hang & not fully return. Especially with turned brake drums and less that 50% friction surface left on shoes. Generally, but not always the primary of front shoe will be the culprit here.
If that all checks out, take good look at wheel cylinder to be certain it returns after application. I have seen worn & pitted wheel cyls do some strange things.
Between BP66s' suggestions & these more common things I listed, you should have the problem covered, I would think. But if not give a shout. . . .
FBp
I'd make sure parking brake cable works freely. If it does not allow the brakes to relax when it's released, shoes will drag and or lock up causing excess heating.
Also double check to be sure you've replaced all the internal hardware correctly as there are 2 different return systems, the foot brake return system and the park brake return system. Flipping or mixing return springs creates this symptom too.
Another common glitch is having a shoe frame drop off one of the stamped glides in the backing plate causint the shoe to hang & not fully return. Especially with turned brake drums and less that 50% friction surface left on shoes. Generally, but not always the primary of front shoe will be the culprit here.
If that all checks out, take good look at wheel cylinder to be certain it returns after application. I have seen worn & pitted wheel cyls do some strange things.
Between BP66s' suggestions & these more common things I listed, you should have the problem covered, I would think. But if not give a shout. . . .
FBp
Senior User
Joined: Sep 2004
Posts: 187
Likes: 0
From: Lincoln, NE
It's worth checking out, too. When I was younger, I drove a '91 s-10 that I had to replace the rear brakes on. Coincidence being as it was, the only time I had tome to do it was the same day I had a tooth filled, so I wasn't feeling too hot. Did what I had to do, put it all back together, and things seemed to work OK. The next day, I'm driving home from my folk's place (about a 6 hour drive) and after about 30 miles the truck is really dragging hard. Stop at a filling station and there's smoke rolling off the rear breaks. Seems I didn't adjust 'em the way I should've. Hosed them off with water, which seemed to help the problem. Somewhat paranoid, I kept thinking about the brakes and all the heat. About 10 miles later, I passed a truck that was on the shoulder of the interstate, smoke and fire rolling off the rear brakes. I made it home safe, but kept wondering if those people made the same mistake I did. Live and learn, I guess.
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