Brake squeal cure?

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Brake squeal cure?

shinyribs
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I may have found it. Supposedly this stuff goes directly on to the pad surface and works wonders. Who knew?!

I got a bottle coming from Ebay now. I'll report back and see if it's snake oil or not. The guy who told me about it is a bike mechanic and uses it on every set of pads he installs.Man,I hope this works!

Item # 94160

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Re: Brake squeal cure?

Butcherblock
Thanks for the heads up Shiney. I would love to know if this works. I hate squeaky brakes!
1982 cb750k 1982 cm200
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Re: Brake squeal cure?

bosco39
One thing I've done in the past to get rid of squeaky brakes is to take the pad and round off the edges with a file. Might be worth a go.
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Re: Brake squeal cure?

shinyribs
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I had success with rounding the edges before. It helped a noticeable amount,but didn't completely cure it. But on the sintered pads I have now that trick didn't work at all.

Thanks for the tip anyway! We can always use a reminder from time to time.
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Re: Brake squeal cure?

alehman
I used an acrylic-based compound that goes onto the back of my brake pads and it completely cured my problem, which had been really bad. If this product is similar, it really should work. Apparently brake squeal is caused by the metal backing of the brake pads resonating and high-heat grease or these sorts of products can dampen the vibrations enough to silence the squealing. Let us know how it goes!
1979 CB750K
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Re: Brake squeal cure?

shinyribs
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Have you ever seen a fat guy do a cart wheel? If you were in my yard about 30 minutes ago you would've. OK,maybe not really,but I wanted too! This stuff works guys and gals! For now at least.

It looks like black water.That's all.

-Spray the supplied brake cleaner(I imagine any would do)on to the friction side of the pads and wipe them off.
- Let dry
-3 drops of the magic water on 1 pad,rub them together to spread evenly
-Let dry 15 minutes
-Reapply and let dry another 15 minutes
-Install
- Silence!

Honestly,I almost hate to post that this stuff works,some of y'all go try it and it doesn't, then y'all think I'm a liar. Seriously. I can't believe how well it worked.

I'm running what EBC calls HH pads. They are fully sintered vs semi-sintered. Supposedly they are the worst for squealing. Also,you know the little nylon doohickey's that go between the pad and the piston? The thing that's supposed to help brake squeal? I have none. My rotors are not surfaced to prevent squeal,either. I have every ingredient for squealing brakes that a boy could have. And they did. I didn't change one single thing except to use this product. Complete silence now.

Now for the disclaimer: I only rode 1 mile since using this stuff. Down my driveway and back. I cannot comment on if it affects braking performance or not. I cannot comment on if it will wear off in a day,a month or last forever. I just went for a ride down the driveway and back and the only thing I heard when I applied my front brakes were  sshhhhhhhhhh. Not a hint of squeal,just the sound of pad friction against stainless rotor.  

I will report back as soon as I know more,but so far things are really looking good! Fingers crossed!
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Re: Brake squeal cure?

shinyribs
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I've got 32 miles on this now. One trip into town through the mountains. No highway, lots of brake action. As of now there is just a hint of squeal right as I come to a stop. Otherwise, still quiet. Braking performance initially felt a wee, Tad soft. About the same as a semi - wet front brake. Went away quickly (4-5 braking cycles)  and full braking power was back.


Bacon cheese Burger time now. Hope y'all are out riding too. Be safe y'all.  Later....
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Re: Brake squeal cure?

shinyribs
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Update on this stuff. The best i can tell what this stuff does is act like some sort of a lapping compound of sorts. I believe it just soaks into the pad and helps to deglaze your rotor(s) which is often a source of squeal for any vehicle. That would explain why the results are not 100% permanent. While it has made a drastic improvement compared to before,it did not completely eliminate any noise,it just lessened it drastically.

I'm trying to figure out how to describe all this so I'll just use a scale of 1-10 to help explain.

1-silent
10-holy $#!t,thats loud!

Stock rotor with factory replacement pads -   5
Stock rotor with sintered EBC pads-             10
Stock rotor with sintered EBC pads & Protex-   1   but slowly(~400 miles) turns into 3

Now for the next part. Recently a question was raised concerning pamping shims. Whatever they are???

http://honda-cb750-s.456789.n3.nabble.com/Front-wheel-Pamping-shim-questions-td4039044.html

So tonight I got a roll of heavy gasket paper and made a pair of these pamping shims. With no other changes my current brake squeal rating of 3 turned into a solid 1.

Since temperature seems to affect the squeal I rode around for about an hour in the mountains earlier today to see what level i was squealing at today. Still a solid 3,maybe a 3.5 since it was a little humid out today.

I already had the shims made up and it took me about 30 minutes to get them on and go back out. Same temperature/humidity conditions. All other aspects were the same. Shoulda been a pretty equal test.

Under most all braking conditions the shims brought it down to a 1 again. After riding the exact same loop at the exact same speeds as before the brakes never got louder than what I would call a 1.5 or a 2. They only made a little bit of noise when I would jump on them fast when they were cool (after a long period of non-use).I would occasionally get a touch of squeal right before coming to a complete stop most all the time. Probably a 1.5 on the uber-accurate squeal scale. 

I'm no scientist,I'm just strictly experimenting here,but these shims really seem to have made a real world difference. I think perhaps it has to do with the fact that it gives the rotor a ''soft bed'' to lie on which is helping to reduce the vibration/squeal. Just to take it one step further I plan to make a little shim to go under each washer where the mounting hardware for the rotors are. If some isolation is good,then more is better,right?

So once again,standby and I'll report back after logging some miles to see if any of this is legit,or if I'm just wasting time.