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Old Dec 1, 2004 | 08:48 PM
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Hawk Brake Pad Question

Just did some searching on what pads most people are running, and Hawk Pads seem to be the weapon of choice. I just bought a set from Napa Auto parts, and unfortunately they came with NONE of the hardware, i.e. shims, retaining clips (paper clip-like fasteners). I just changed to the Napa pads anyways, and to my amazement I have been running with no shims on nearly all of the pads, except for like 3 of the 8 total pads. I am also missing the clips for the fronts. Dangerous because the retaining pin can come right out since I don't have those clips. And the Napa REAR brake pads don't have holes drilled in them to accept the retaining fasteners, so even if I had them, I wouldn't be able to use them. I've been trying to get a hold of those clips and pins to see if they would work with the existing pads that I have. The Mazda dealership doesn't sell them separately, and consequently only sells them with the pads at somewhere around 200 for the fronts and 200 for the backs. <rip off. So my question is, do the Hawk Pads come with this hardware? Or does anyone have a full set of shims and clips that are in good shape that I can buy?
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Old Dec 1, 2004 | 08:56 PM
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Try Here: http://www.mazdatrix.com/j-1brake.htm
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Old Dec 1, 2004 | 08:57 PM
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Good prices too!
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Old Dec 1, 2004 | 09:20 PM
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http://www.mazdaformance.com/Merchan...egory_Code=420
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Old Dec 2, 2004 | 03:17 AM
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rynberg's Avatar
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To answer your question -- no, the Hawk pads do not. No aftermarket pad is going to come with FD-specific hardware. The pad is simply cut to a "standardized" shape. Several cars use the Sumitomo calipers (3000GT, 300ZX).
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Old Dec 2, 2004 | 04:31 PM
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so, why are my brakes still squealing? They don't do it when Im braking hard, just under light braking. Anyways, mazdatrix seems to sell the hardware kit for 40 bucks, and this other site that walien posted it goes for half that. What site is that? Mazdaformance? And there doesn't seem to be a rear hardware kit. Seems to be less crucial to have the retaining clips since they're not held in by the pins, but I think the retaining clips on the rear brake pads seem to have a different purpose. They push the pads off the rotor or hold them inside the caliper. My pads don't have the holes drilled in them to accept these pins, so maybe I need to drill them out or something. Thx for the help.
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Old Dec 2, 2004 | 04:39 PM
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Your car will brake faster without the retaining pin, because those pin only push out the pad away from rotor. And when you brake, you have to defeat the pin force for a second before you start braking.
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Old Dec 2, 2004 | 04:56 PM
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Mazda DOES sell shim/retractor spring kit separate from the pads. I don't have the PN at hand but could look in my files.
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Old Dec 2, 2004 | 08:28 PM
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Do they really? I called them and they told me that they don't sell them separately. I'd have to buy the pads with the kit.
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Old Dec 2, 2004 | 08:31 PM
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Oh, and reza, doesn't doing that leave the possiblity of the pad not coming off the rotor should it stick to it for some reason? I'd rather have functioning brakes over ones that just stop better. Those pins have to be there for a reason. Just a thought. Maybe I'm wrong about their function though. In any event, I can't run with those fasteners in the rear since my new pads don't have the holes drilled in 'em to accept them.
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Old Dec 2, 2004 | 09:34 PM
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Originally Posted by Stevey629
so, why are my brakes still squealing? They don't do it when Im braking hard, just under light braking.
Sounds like Hawk HP+ pads to me. That pad is just a squealer under light braking, there is no way around it.
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Old Dec 2, 2004 | 10:06 PM
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HP+ don't squeal on me and I've been through a couple sets.

Make sure to use some of that "anti-squeal" spray or paste on the back side of the pad before you install it. It should quiet all but the very occasional slight squeak.
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Old Dec 2, 2004 | 10:16 PM
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Well, HP+ pads *do* squeal lightly on my 94, but then I don't use any of the spray. This was only on light braking on the road. They do not squeal on the track ;-)

The HPS pads ane nice and quiet and low dust (at least for me).

-bill
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Old Dec 2, 2004 | 10:23 PM
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Originally Posted by Julian
Mazda DOES sell shim/retractor spring kit separate from the pads. I don't have the PN at hand but could look in my files.
Front Hardware Kit: PN FDZ3-33-29Z
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Old Dec 2, 2004 | 10:36 PM
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Front Pins (2 reqd per side) FD01-33-696

Rear pad V Spring FD01-26-233

true other hardware for rear only comes with stock pad except seal and boot kit
FDY1-26-46Z

Please note that these PN's are for 94 RX7 and may not be the same for your 93 or 95 cars
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Old Dec 2, 2004 | 10:42 PM
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Back to brakes, I use Hawk HP Plus (H1) front and rear on street and autocross. Good allround ... dirty and hard on rotor life.

Track: Hawk Black Y-5 (H2) on front
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Old Dec 2, 2004 | 10:48 PM
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Make sure to use some of that "anti-squeal" spray or paste on the back side of the pad before you install it. It should quiet all but the very occasional slight squeak.[/QUOTE]

Yup works good too...squeal is coming from vibration on brake pads
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Old Dec 2, 2004 | 11:39 PM
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So my question is whether the clips (other than the front that obviously serve a purpose to hold the pins in) are essential? I suppose the theory is that they keep the pads off the rotor when not braking, but are they really strong enough to do that, and does a spring on one edge of the pad effectively lift the entire pad? I would think that to be really functional they would need a little beefier springs. I suppose they could still cut down on chattering...
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Old Dec 2, 2004 | 11:45 PM
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You should be using Hawk HPS for street (if you want them quiet). HP+ is for the guys that ocasionaly race on a track. Carbon/Kevlar material is my favorite in brake pads. The metalic crap eats rotors and you will have to turn them more often. I haven't tried Project Mu's because of the price (has anyone tried them?).
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Old Dec 3, 2004 | 04:05 AM
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I have Napa crap pads. They are unusually squealy for a rather standard pad. what exactly causes the squeal? You guys are saying put anti-squeak on the back of the pads. This leads me to believe that the squeal comes from when the piston actuates against the back of the brake pad. But in that case, wouldn't it happen all the time? I think my pads aren't lining up right. Maybe anti-squeaking the backs keeps the pads lined up right? I feel like I'm spitting theory here. Someone correct me. Shims are for heat dispersion? Squealing? Retaining clips?
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Old Jan 20, 2006 | 01:36 PM
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I know Im digging this thread up, but just recently I got my rotors resurfaced to see if I could reduce some of the squealing. I also had the pads realigned, because I guess In installed them improperly in the rear, misaligning the piston causing uneven wear. Well, the squeal is still there, and almost sounds speed determined with a gallop, as if the rotors were warped. However, it is FAR less noticeable, and is also much more infrequent. And it seems like it could be vibration from the pad, because the guys who resurfaced the rotors wouldn't have done it if my rotors were warped. Apologies for my overly complicated description...But I figure the more information I provide, the better a diagnosis may be. On with the show!

Another sound:

I do have a new noise, which sounds very similar to either a plane flying over head, or a police siren at a very far distance. And the "pitch" of this sound is consistent with how fast I seem to be going. In other words: A Police siren sound goes up and down...right? 30 mph and braking seems to cause a high pitch police siren sound. 10 to 5 mph, sounds like the lower pitch. And THIS particular noise (not to be confused with the aforementioned "intermittent squeal") is always audible, when I brake...EVERY SINGLE TIME. It just seems to be eaiser to hear at lower speeds, because rolling the window down on the freeway going 80 mph just puts the wind in my ears and I can't hear much.

Suggestions?
So what would any of you guys suggest? I have NAPA Auto pads, which might be the reason for these noises. But I couldn't imagine a pad causing that "police siren" noise. I've never heard that in any brake system. I also have not bled the calipers in quite some time, and was wondering if this might be a factor as well. Once again, the guys at the shop said that I didn't need to bleed 'em, but I disagree. Anti squeal, yeah. I've used it 2x already. Taken the pads out, put the goop all over the backs of the pads and shims. Sound dissapears for 2 days, then comes back.

Any HONEST help is appreciated.
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Old Jan 20, 2006 | 07:41 PM
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Why are you running NAPA pads to begin with?
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