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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Suspension - Brakes - Steering> 63,Impala brake problem
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Topic Review (Newest First)
05-12-2006 11:05 PM
yesgo Check for old/clogged hoses. This would really affect both rears rather than just one, but it could affect only one front. If you can get the brakes to obviously stick, open a bleeder to see if they release.

Look at the attached pic for an example of a grooved backing plate just in case you are unfamiliar with them.

Hate to state obvious, but for the rear, check that the parking brake is not overly adjusted, or that a cable is not sticking. Make sure the parking brake strut bar moves freely. Unless you have a posi rear, one side will stop spinning even when all is working correctly.

Also check for overloaded/bent plates. You mentioned that the shoes in the rear were shifted back after you took the drum off. Look at the top pivot to see if the shoes line up parallel on it. They almost never will, but check them against the other side. Check this in the front too.
A backing plate bent in this way will cause a low pedal if brakes adjusted with drum on. If doing a drum-off adjustment, it may show up as having to back the adjuster off significantly to get the drum on, and shove forward to get the lugs to line up to the drum. I see this mostly on the rear of trucks/vans w/o full floating axles. I don't have a spec on it, but as long as you can adjust the shoes to the drum while off, and then install the drum without shifting (therefore applying) the shoes to line up the lugs, it should be OK.

It seems almost wierd that it's suddenly one front and one rear opposite. I hope this might help.
05-12-2006 09:16 PM
CANNONBALL
Quote:
Originally Posted by CANNONBALL
I put new brakes[napa shoes]on front.Napa shoes on back.All wheels spin free on jack.On one mile drive L.front,R.rear brakes get hot! Too much pressure on them.Drums too hot to touch. &brakes smell hot.Solution?
There is no grooves in the backing plates..
05-12-2006 07:06 PM
CANNONBALL
63'Impala Brake Problem.

I put the rear end on blocks,started the engine,while in neutral the rear wheels spin free for a minute, then the right wheel slows to a stop. I put the trans. in Drive they turn for a minute or so then the right rear slows to a stop. To pull the right rear drum, I had to hit it a few times around with wood & hammer to free it. After the drum is off, the shoes are kinda shifted toward the back.The Brakes seem to have preasure applied by just letting the car engine run.I want to drive it. What causes this? the pedal rod is adjusted right.
04-29-2006 02:05 PM
TooMany2count ur wheel cylinders could be sticking....or a collapse brake hose maybe..joe
04-29-2006 11:48 AM
xntrik On drum brakes make sure that where the shoe touches the backing plate that there is not a groove worn into the backing plate. This is where the shoes float back and forth. These "pads" should be smooth or the shoes will bind in the extended position.

You might have to weld them up and grind them flat or totally replace the backing plates.
04-27-2006 04:02 AM
poncho62 Either the emergency brake is coming on, or the return springs are weak.
04-27-2006 03:47 AM
CANNONBALL
63,Impala brake problem

I put new brakes[napa shoes]on front.Napa shoes on back.All wheels spin free on jack.On one mile drive L.front,R.rear brakes get hot! Too much pressure on them.Drums too hot to touch. &brakes smell hot.Solution?

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