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post #1 of (permalink) Old 08-22-2001, 10:42 PM Thread Starter
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driv side front brakes drag?

Hey Zukers,

I drove my zuk about 200 miles today and it behaved itself very nicely. The only problem I had was the drivers side front brake would drag very slightly, enough to cause a very loud SQUEAL at very low speeds. When rolling away from a traffic light, I could tell they were engaged ever so slightly, too.

After a highway stint, I got out to inspect that wheel and found the wheel to be quite warm. The passenger side wheel was warm, but nowhere near the temp of the drivers side. There was no fried brake smell or smoke or billowing flames or anything, so it wasn't TOO bad.

My question is: what can cause the disc brakes on one side to do that? I'm sure the pads are worn down really well on that side, now, so before replacing them, I'd like to find out the trouble and correct it. Any ideas?

thanks,

~daxe

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post #2 of (permalink) Old 08-22-2001, 10:43 PM
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Re: driv side front brakes drag?

Caliper is probably sticking some. Might be on the way out if it is old.

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post #3 of (permalink) Old 08-22-2001, 10:52 PM Thread Starter
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Re: driv side front brakes drag?

It's as old as the Zuk (13 years) and has the same 89K miles on it. Is a new caliper an expensive proposition? Probably should replace them in pairs, yes?

Thanks, Tim!

PS: I have to email you about the 2K1 thing.

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post #4 of (permalink) Old 08-22-2001, 11:22 PM
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Re: driv side front brakes drag?

For a single rear cylinder (like a caliper), it was 19.99. I had one bad one and just replaced that one. Take it apart, it'll show what's going wrong for ya. Brake pads are like 10 bucks and go for the brake hardware kit too (its like 8 bux). Mine were worn down to nothing and brakes did not work very well.

Got zook?I do,88.5 spoa'd on 29'shttp://www.geocities.com/bik3r
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post #5 of (permalink) Old 08-23-2001, 05:29 AM
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Re: driv side front brakes drag?

A rebuild kit is 6.00 a rebuilt caliper isn't too bad check autozone. The rotors are 29.00 at autozone BTW.


Glenn
87' Zook Spoa,M/L 33's, 4.16 tcase,4.62 gears Camo,Header,2"exhuast, Cam.
Lockers, 8klb winch, -Wildweasel2 NE4WI- club http://www.cs.umass.edu/~glenn/personal.html
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post #6 of (permalink) Old 08-23-2001, 05:52 AM
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Re: driv side front brakes drag?

It could be two things that is causing your front brake caliper
to hang up if the brake pad are OK. First it could be the piston
inside the caliper that is bad. Secondly it could just be the
slides that allow the caliper to move back an forth.
I would jack it up, remove the wheel and the caliper. Using
a C-clamp, try to push the caliper piston back into the housing. It
should return fairly easliy with a C-clamp. Then I would check the
slides where the bolts that hold the caliper to the caliper bracket.
These are most likely dry and need to lubed. I usually use a anti seize
compound on these.

Wayne

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post #7 of (permalink) Old 08-23-2001, 06:20 AM
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Re: driv side front brakes drag?

There is nothing wrong with your caliper, I'd bet you money on it.

The problem is the pad is really worn down, causing the piston to overextend itself, where it gets into the protective rubber boot and doesn't like to release.

The metallic squealing you're hearing is the audible indicator telling you to replace the pads.

I have had this happen many times on various vehicles, and replacing the pads has always fixed the "problem".

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post #8 of (permalink) Old 08-23-2001, 07:45 AM Thread Starter
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Re: driv side front brakes drag?

>>>The problem is the pad is really worn down, causing the piston to overextend itself, where it gets into the protective rubber boot and doesn't like to release.

You know it's funny...I understand the way the brakes work, though I have never done a brake job on a car. When I was envisioning what could be happening, this is exactly what I imagined. I sort of thought to myself that there must be a "usual" range of motion and that the pads are really warn and now it's inunfamiliar territory, so it's getting hung up on something.

>The metallic squealing you're hearing is the audible indicator telling you to replace the pads.

I knew that much, anyways. In the past, I have bent the indicator up on a car I had which used to "indicate" constantly before the brakes were particularly worn.

>>I have had this happen many times on various vehicles, and replacing the pads has always fixed the "problem"

I guess it's time to do my first pad replacement. Wish me luck.

~daxe

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post #9 of (permalink) Old 08-23-2001, 08:12 AM
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Re: driv side front brakes drag?

There are no audible indicaters on Zook disc brakes. All
you will hear is a grinding noise... It pays to make sure everything is clean and moves freely. also check the rotor
it may be rusty and grooved. If the caliper is stuck or
rusted then you should replace it. you will need a 17mm
wrench and a metric allen bolt set and a c-clamp.


Glenn
87' Zook Spoa,M/L 33's, 4.16 tcase,4.62 gears Camo,Header,2"exhuast, Cam.
Lockers, 8klb winch, -Wildweasel2 NE4WI- club http://www.cs.umass.edu/~glenn/personal.html
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post #10 of (permalink) Old 08-23-2001, 08:28 AM Thread Starter
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Re: driv side front brakes drag?

>>>There are no audible indicaters on Zook disc brakes. All
you will hear is a grinding noise...

is that the wonderful sound of rivets being ground into the disc? It doesn't do that, yet. In fact, other than that hideous squeal, the brakes stop the truck quite well.

> It pays to make sure everything is clean and moves freely. also check the rotor
it may be rusty and grooved.

I will squirt the heck out of everything with Brakleen and see if that gets me anywhere.

> If the caliper is stuck or
rusted then you should replace it. you will need a 17mm
wrench and a metric allen bolt set and a c-clamp.

Amazingly enough I have all those things. I'd feel good knowing I had nice new brake parts, so I won't hesitate to replace anything that looks suspicious.

thanks,

~daxe


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