disc brake experts please help

8

89lxsport50

10 Year Member

Feb 25, 2003

550

5

39

Franklin Tennessee

Jul 23, 2005

#1

• Jul 23, 2005

• #1

I am installing new pads and rotors on my 89. I have one side installed now. When I spin the rotor, I can hear the pads scraping on it. Is this normal? If not, what do I do?

 

R

RycheGT

Member

May 31, 2005

73

0

6

Thomasville, NC

Jul 23, 2005

#2

• Jul 23, 2005

• #2

a little rub is normal.

 

8

89lxsport50

10 Year Member

Feb 25, 2003

550

5

39

Franklin Tennessee

Jul 23, 2005

#3

• Jul 23, 2005

• #3

RycheGT said:

a little rub is normal.

Click to expand...

thanks, I was hoping so. Now I cant get the other caliper off the rotor.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,179

17,881

224

Massachusetts

Jul 23, 2005

#4

• Jul 23, 2005

• #4

If you just replaced it?? Yeah it will scrape like hell.

I usually step on the brake hard a few times to seat the pad after replacing it (make sure other caliper is on the rotor or it will pop the piston out).

But a little scrape is normal.

 

8

89lxsport50

10 Year Member

Feb 25, 2003

550

5

39

Franklin Tennessee

Jul 23, 2005

#5

• Jul 23, 2005

• #5

Mustang5L5 said:

If you just replaced it?? Yeah it will scrape like hell.

I usually step on the brake hard a few times to seat the pad after replacing it (make sure other caliper is on the rotor or it will pop the piston out).

But a little scrape is normal.

Click to expand...

Yeah, The other caliper is on alright, I cant get it off the rotor. Any tips?

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,179

17,881

224

Massachusetts

Jul 23, 2005

#6

• Jul 23, 2005

• #6

Soak it with WD-40, put the correct wrench on the bolt and give it a solid whack with a hammer. That should break it loose.

If that doesn't work, heat the bolt up with a torch and try it again.

 

8

89lxsport50

10 Year Member

Feb 25, 2003

550

5

39

Franklin Tennessee

Jul 23, 2005

#7

• Jul 23, 2005

• #7

I got the pins out. I can't get the caliper to slide off the rotor. How can I compress the pistion with the caliper on the rotor? The haynes manual says to use a C clamp on the back of the caliper and the front of the outer pad. Problem is my C clamp is not large enough to span the whole caliper. Is there another way?

 

Shakerhood

20+ Year Stangneter

Oct 28, 2004

3,355

207

114

Ohio

Jul 23, 2005

#8

• Jul 23, 2005

• #8

89lxsport50 said:

I got the pins out. I can't get the caliper to slide off the rotor. How can I compress the pistion with the caliper on the rotor? The haynes manual says to use a C clamp on the back of the caliper and the front of the outer pad. Problem is my C clamp is not large enough to span the whole caliper. Is there another way?

Click to expand...

Open your bleeder screw to release some pressure on that side and then the caliper should slide off. If you do open the system up though you will have to bleed the brakes.

 

2000xp8

SN Certified Technician

Aug 8, 2003

8,016

1,613

194

NJ

Jul 23, 2005

#9

• Jul 23, 2005

• #9

If you are replacing the pads and rotors, i WOULD NOT open the bleed screw.

The rotors are probably old, and the pads have worn the rotor down, but the outer lip is still there and the pads can't get off the rotor.

I'd use a hammer and a pry bar. Sounds like one of your first brake jobs, and IMO you don't want to want to have to mess with bleeding them.

BTW, i'd had the same problem before, on multiple vehicles. It's not a big deal.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,179

17,881

224

Massachusetts

Jul 23, 2005

#10

• Jul 23, 2005

• #10

Wiggle the caliper around hard. That should slowly compress the piston enough for it to slide off.

DO not touch the bleeder screw. You don't want to make a mountain out of a molehill.

 

8

89lxsport50

10 Year Member

Feb 25, 2003

550

5

39

Franklin Tennessee

Jul 23, 2005

#11

• Jul 23, 2005

• #11

Thanks guys. Yeah, I did the brakes once years ago so I'm a little rusty at it. the wife is out of town with the other car so I had to walk a few miles to get a larger C clamp. It's 98 degrees here so that was fun. Anyway I got it off, and now I will take it for a test ride. Thanks for the help.