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Some questions about rear disk brakes

 
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  #1 (permalink)  
Old 22 Jan 2011, 12:25 am
edb edb is offline
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Default Some questions about rear disk brakes

I have a 03 Limited, bought it last year, and it has 22,600miles now.

The driver side rear brake was making noise because the pad on the outer board was completely gone. I just replaced the side and will work on the passenger side tomorrow, but I have a few questions since this is my first brake job, I am not sure if I am doing it right.

On the driver side, the inner pad still has a lot of life left, what caused the uneven wear? Is it the rust? There was heavy rust on the brake pad boards, the caliper adapter and the adapter abutment, and the caliper can hardly move. It took me quite a bit effort to remove it.

I put some brake lubricant on all contact points before installation, but how long will it last before rust comes back? I am in Michigan, steel develops rusts quick.

After installation, the caliper can freely move. Then I pump the brake pedal a few times, now both pads are in firm contact with the rotor. Is it what's supposed to be? Should the pads retract after brake pedal is released? or should they retract when the rotor moves?

I also noticed on the passenger side, the rear rotor has noticeably more wear than the driver side has. Is this because the previously uneven wear on the driver side reduces stopping power so that the passenger side had to work harder?

Sorry for some many questions.

Thank you for your help.
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Old 22 Jan 2011, 04:39 am
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Default Re: Some questions about rear disk brakes

Quote:
Originally Posted by edb View Post
The pads retract after brake pedal is released.
You are correct. Brake hoses degrade and plug, you can tell by cracking a bleeder when the brake is dragging,
There'll be a spurt.

If not, rebuild the caliper.

Otherwise, sounds like you did a good job on the abutments/Caliper.
Grease won't last long before it's washed off.
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Old 22 Jan 2011, 06:42 am
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Default Re: Some questions about rear disk brakes

ok so i'm totally confused. On my baby, she has rotors in the front and drums in the back. This is the 2nd post i read about a rotor being in the rear. So what's going on. do some models have like 3 rotors and 1 drum, or are they all rotors or is one side rotors and the other side drums? What the hell is going on? I'M LOSING MY EFING MIND HERE, AHHHHHHHHHH!!!!!!!!!:w acko:
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Old 22 Jan 2011, 06:46 am
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Default Re: Some questions about rear disk brakes

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Originally Posted by gkid1983 View Post
ok so i'm totally confused. On my baby, she has rotors in the front and drums in the back. This is the 2nd post i read about a rotor being in the rear. So what's going on. do some models have like 3 rotors and 1 drum, or are they all rotors or is one side rotors and the other side drums? What the hell is going on? I'M LOSING MY EFING MIND HERE, AHHHHHHHHHH!!!!!!!!!:w acko:
Rear disk brakes were an option on the PT's up until 2010.They were standard on all 2010 models.
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Old 22 Jan 2011, 09:32 am
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Default Re: Some questions about rear disk brakes

He right on the option, my 01 LE had wheel disc brakes and my 02 LE Woody also has them too...an option you could have on your PT..it also has traction control in that option package also?

Hey edb where in Michigan are you??? I'm in Saginaw...
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Last edited by twress; 22 Jan 2011 at 09:36 am.
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Old 22 Jan 2011, 10:10 am
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Default Re: Some questions about rear disk brakes

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Originally Posted by twress View Post
He right on the option, my 01 LE had wheel disc brakes and my 02 LE Woody also has them too...an option you could have on your PT..it also has traction control in that option package also?

Hey edb where in Michigan are you??? I'm in Saginaw...
Metro Detroit.
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Old 22 Jan 2011, 10:15 am
edb edb is offline
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Default Re: Some questions about rear disk brakes

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Originally Posted by UptownSport View Post
You are correct. Brake hoses degrade and plug, you can tell by cracking a bleeder when the brake is dragging,
There'll be a spurt.

If not, rebuild the caliper.
Thanks for your reply.

My visual check tells me the hoses are fine, but who knows. I am confused by "cracking a bleeder". What does that mean?

And I don't have to tools to rebuild a caliper, got to buy one. It's interesting that there is just no new caliper, all auto parts stores have rebuilt ones only.
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Old 22 Jan 2011, 10:37 am
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Default Re: Some questions about rear disk brakes

Cracking=just barely opening. Bleader's love to break off, so:
Get a six point socket or wrench (they make special bleeder wrenches)
Make sure the bleeder isn't plugged.
The hose exterior will look fine.

You could purchase new caliper from the dealer:

Quote:
5083159AA $144.00
Brakes - Hydraulic system - Rear brakes - Caliper
Caliper, pt cruiser, left 2001 - 2010
Quote:
5083158AA $145.00
Brakes - Hydraulic system - Rear brakes - Caliper
Caliper, pt cruiser, right 2001 - 2010
Otherwise a rebuild is fine.

I've never rebuilt a rear caliper- Fronts are EZ and cheap to rebuild.
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Old 22 Jan 2011, 02:47 pm
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Default Re: Some questions about rear disk brakes

Quote:
Originally Posted by gkid1983 View Post
ok so i'm totally confused. On my baby, she has rotors in the front and drums in the back. This is the 2nd post i read about a rotor being in the rear. So what's going on. do some models have like 3 rotors and 1 drum, or are they all rotors or is one side rotors and the other side drums? What the hell is going on? I'M LOSING MY EFING MIND HERE, AHHHHHHHHHH!!!!!!!!!:w acko:
My 01 has rear disc brakes. My 04 has rear drum brakes. Both stop the car.
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Old 22 Jan 2011, 07:39 pm
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Default Re: Some questions about rear disk brakes

ok thanx for the info. i thought i was going crazy or something.
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