Brake pads have permatex on backs of pads WHY??

[pisgahhiker]

I just changed my wifes 92 GT brakes for the first time.
When I took off the pads I noticed someone had put permatex (gasket stuff)
all over the back of the pads.
It looks like it was spread across the backs for some reason.

Has anyone heard of this?

Is it maybe used to stop the brake pads from making eather a squeak or the clicking sound?
Any ideas? I'm trying hard to figure out why this was done.

 

[PNY PWR]

It's to reduce the sqeeling noise from the sonic vibrations/

 

[pisgahhiker]

squeeling sound like the sound it's making now maybe?

It's a fairly quite squeek but I can hear it when I pass a wall and it echos back.

Just started today after I put the new pads on.

 

[PNY PWR]

did you use the "disk brake quiet" on the back side of the pads? Sometimes the pads come with a little tube of it. They usually have them up by the counter too. If you put them on w/o it there is a big possibilty that's your problem. the rough pad and smooth rotor are disimilar making a high frequency sound, the pads are always touching a little. That's why it will do it wether the brakes are being applied or not. Did you get the rotors turned? That can cause some problems too with new pads, always turn or replace the rotors.

 

[Papageof]

It probably wasn't permatex, but disc brake quiet. It looks a lot like rtv, and may be the same thing for all i know. But if you go the parts store they will sell you some. Just a couple of bux. Pull the pads, put it on and let it dry. replace pads, shouldn't have a squeak. Also did you grease the hardware? Check that, that can make it squeek a little. The pads rubbing on the rotors can do it like PNY PWR said too. If you can't get them turned for what ever reason; take some medium sandpaper to them in a circular motion to break up the glaze. It ain't perfect, but it works. The key is a non directional finish.

BTW: If your new pads had shims (lil metal plates on the back) you shouldn't need it but you can use it anyway; it won't hurt anything. Hope that helps.

 

[pisgahhiker]

put new rotors on but didn't put brake quite on.

Those clips on the outside facing the rim were in the way of the rims.

The old brakes had them beat flat so I did the same.
Is it cool to just remove the clip?
I think the clip is actually making the sound

 

[Papageof]

What do these clips look like? A 92 shouldn't have clips on the calipers if it is the stock brakes.



If you describe what it looks like and what it does i could tell you. But odds are if they worked fine before, put it back the way you found it.

EDIT: Do you mean the clip on the outboard pad that holds it to the caliper? If so you could bend the offensive bit of metal but you have to leave the clip or that pad will fly out of the caliper next time you stop!

 

[At1Maverick69]

squeeling sound like the sound it's making now maybe?

It's a fairly quite squeek but I can hear it when I pass a wall and it echos back.

Just started today after I put the new pads on.

I get a lot of people who get their brakes done either by themselves, some other shops, and even by us, coming back for the simple reason that, people often times think that replacing the pads is enough service. truth is even if you dont go metal to metal, you have to make sure that the rotor surface is true and that it's not glazy, thus resurfacing is needed. just my thought & what i've learned from school..

 

[At1Maverick69]

squeeling sound like the sound it's making now maybe?

It's a fairly quite squeek but I can hear it when I pass a wall and it echos back.

Just started today after I put the new pads on.

I get a lot of people who get their brakes done either by themselves, some other shops, and even by us, coming back for the simple reason that, people often times think that replacing the pads is enough service. truth is even if you dont go metal to metal, you have to make sure that the rotor surface is true and that it's not glazy, thus resurfacing is needed. just my thought & what i've learned from school..

 

[HISSIN50]

At1, nice point. w/o turning the rotors (or renewing them), new pads can be noisy (even if an attempt at proper burnishing is made).

some of those anti -squeak products do seem to work alright. ive never seen them come 'pre-lubed' before. that is a little funky to me.

 

[pisgahhiker]

Well actually her GT is a clone.
It was a 5.0 LX car from what I can tell.

I assumed they had also switched the brake system. It looks exactly like my LX brakes.

Yes it's the clip that holds the outward brakepad to the caliper.

Right at the ends of the clip the clip turns up and outward.

The little flap that sticks out at the end of the clip will hit the rims on the car.

I noticed this when I put the wheel back on and the wheel wouldn't turn.
I then looked at the old pads and saw where the end of the clip and been hammered flat against the caliper to allow the wheel to clear it.

The pads have the two bolt holes for the caliper bolts to go thru on the outward brake.
I don't think it could fly off with the bolts in place. However I'm not sure if it will help or make the sound worse.

I also starting to think the clip might have had permatex on it to hold the metal clip flat against the caliper.

My wifes car has the same rims as my LX
Weld racing wheels.
I have a small spacer and this isn't a issue. Maybe I should get her a set of spacers.

 

[pisgahhiker]

I'll try to get a digital pic when the sun comes up and I jerk it back apart.

Rotors are brand new I've heard of people turning new rotors to get them true.
But screw that it can squeak then.

I have access the equipment to turn these but I really don't feel like taking them back off. As Weld Wheels suck to remove.

If these rotors need turned and there brand new thats total B.S.
I thought most rotors where true if you bought them new. I think I'm going to have to take them over to my buddy to check them to see if they need turned.

If they do come monday morning someones going to have a pissed off person @ napa
Not my car anyway it won't ever bother me as the wife has to drive this one.

It's not that bad of squeak. It's just one of those things that drive you nuts.

My LX might even be making this sound also. I'm not sure because the exhaust is alot louder than my wifes so I can't hear it if it is.

 

[pisgahhiker]

she also got the cheapest pads she could get.

Think it would help to go get her some better quality pads?

I never have liked cheap pads but she picked up the parts and thats what she had.
I've always heard cheap brakes will squeak any truth to this?

 

[seijirou]

yeah I would throw a wheel spacer on that mofo, I don't like the idea of beating on brake parts with a hammer. even if they are on the caliper when you hammer them flat, that caliper probably isn't the strongest thing around. I've had good luck with that brake quiet stuff although I havn't had any problems on my 5.0's with squeaking. 90's hondas squeal like a mofo if you don't use that brake quiet and grease everything well. Nomatter how good or crap of a pad you put in there. I don't know if that holds any relevance for you or not.

 

[PNY PWR]

she also got the cheapest pads she could get.

Think it would help to go get her some better quality pads?

I never have liked cheap pads but she picked up the parts and thats what she had.
I've always heard cheap brakes will squeak any truth to this?

I've been down that road before, I'll never put cheap pads on anything again. They're noisy, get brake dust all over everything, don't last, and screw up your brand new rotors. The way I see it, it's your brakes, the most important thing on the car, gotta spend a few extra bucks to make sure you can stop when you need to.
I tried cheap pads on my F150, took them off and returned them to Auto Zone, got the PF carbon metalics, and it was like night and day. Noises went away, tons less dust, and stopped alot better.

 

[pisgahhiker]

Well I'm going to go pick up some better pads and some brake quite.
We'll see what happens then

 

[pisgahhiker]

Ok I went out and took of the wheels and took a look.

The clip I bent to allow clearnace for the wheel to fit in is not bending right.
It's hitting the backside of my rim.
The otherside bent perfect and is clearing the wheel.

What will happen if I rip off the clips?
The pads have the caliper bolt holes so I don't think the pad can fall off.

What function does the clip serve anyway?

I'm still going to have the issue with the clips when I go buy a set of good pads.

The other pads had bent clips and it cleared fine. I just can't get one end of the clip to lay flat against the caliper.
It just won't bend right.