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Gimme a Break! Upgrading Your Disc Brakes is Easier Than You Think

Posted July 14, 2009 4:50 PM by motorztv

If your brakes are starting to squeak, it's probably time to change your brake pads. But why take them to a shop and spend all that money on labor when you can do it yourself this weekend? And, while you're at it, why not upgrade your rotors as well? All it takes is a set of jack stands, a floor jack, a few beers and a couple of hours.

As you can see from this episode, the process is fairly simple. Just jack up your car, remove a wheel, then the caliper bracket. If all you need to do is replace your pads, then you're more-or-less set. The only tricky part to replacing your pads is generally the pistons in the brake calipers are auto adjusting, so they are going to be too tight for your new thicker brake pads. In order to open them up a bit, you'll need a couple of tools.

For the S197 Ford Mustang GT (2005-2009) you'll need to grab a brake pad spreader for the front calipers and a brake piston tool for the rear. Both toolsare available at your local auto parts store for a few dollars. The rotors are real easy to replace -just remove the old ones and put the new ones on. If there's a metal retainer clip (as was the case on our Mustang), just cut it off; you don't need to keep that around, as it's just used at the factory on the assembly line. The full step-by-step can be seen in episode #26.

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#1

Re: Gimme a Break! Upgrading Your Disc Brakes is Easier Than You Think

07/14/2009 5:08 PM

Probably a good idea to bleed the brake lines too.

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#2
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Re: Gimme a Break! Upgrading Your Disc Brakes is Easier Than You Think

07/14/2009 5:16 PM

You shouldn't need to bleed the lines if you never disconnect the lines, and their isn't a reason to disconnect them here.

If your pads are worn and you have been good at making sure your break fluid is at the correct level, you may find when you spread the calipers, that the fluid overflows the tank.

I will also point out that on some cars, the rotors are bolted from the back side and require a slide hammer to remove.

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#3
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Re: Gimme a Break! Upgrading Your Disc Brakes is Easier Than You Think

07/14/2009 8:20 PM

Actually, bleeding the brakes may not be a bad idea, particularly if it has been a year or two.

As time goes on the brake fluid,which is hydroscopic, tends to collect moisture. The water tends to descend to the lowest point of the hydraulic system, which is the brake calipers.

Bleeding will remove some of that moisture laden fluid.

Every two or so years it is a good idea to replace the brake fluid.

If you don't it can oxidize and pit the walls of your caliper pistons and water will boil quickly and cause very bad brake fade and a spongy brake pedal feel.

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#4
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Re: Gimme a Break! Upgrading Your Disc Brakes is Easier Than You Think

07/14/2009 9:07 PM

Exactly. For the first few years it should be ok, but if the brakes start to feel spongy you have to bleed them. It takes two people but is really easy to do.

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#6
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Re: Gimme a Break! Upgrading Your Disc Brakes is Easier Than You Think

07/15/2009 12:31 PM

Re:

"the brake fluid,which is hydroscopic..."

...uh... for everyone who read this post and thought you learned a new word...

... ya learnt it wrong! The wurd is hygroscopic, with a "g".

A hydroscope is fer lookin at thin's unner-water......

[sorry ... truly I am .... Just my peeve ...]

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Re: Gimme a Break! Upgrading Your Disc Brakes is Easier Than You Think

07/15/2009 2:33 PM

Good catch! Thanks.

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Re: Gimme a Break! Upgrading Your Disc Brakes is Easier Than You Think

07/16/2009 12:14 PM

hygroscopic

nice catch.....

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Re: Gimme a Break! Upgrading Your Disc Brakes is Easier Than You Think

07/16/2009 12:16 PM

Yes, Bleed the brakes if it has been awhile, You would need a friend to help though,

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#5

Re: Gimme a Break! Upgrading Your Disc Brakes is Easier Than You Think

07/15/2009 4:06 AM

Hi.

All the good stuff is covered and this is a simple operation. However to the mechanically challenged:

  1. Revving the engine won't stop the pedal from feeling spongy.... bleed the brakes.
  2. Brake fluid is an excellent paint stripper. Wearing gloves won't stop you from messing up your paint job. Do not get it on the paint. Have a bucket of soapy water at hand to wash up any mess IMMEEEEDIATELY!
  3. There are no spare parts in a brake cylinder repair kit....you cant use your newly repaired car to go to the supplier to find out where that extra seal goes!!
  4. Brake fluid in a soda bottle you used to bleed the brakes LOOKS LIKE soda to a small child. Be careful with waste.
  5. Surplus or drained brake fluid does not help flowers grow.
  6. Pool chlorine and brake fluid are explosive when mixed....that's it, keep them apart. Do not even buy them on the same shopping trip!
  7. You will be saving a whack of $$ by doing the job yourself. Don't be a schmuck, spend some of the savings on the best quality pads available for ROAD use. Go for ventilated rotors (Discs in some lingo's).
  8. Upgrading the factory standard rubber brake hoses to Factory Approved steel braided hoses will be a good investment in the long run.
  9. Even if you are real smart, get someone that has successfully replaced brakes a few times to give you a hand the first few times you do it.

These are some of the "Oh heck, I did not know that!!" You should have stuck to vacuuming the rugs, things I have come across over the past years. I'm sure many of you can add a few more.

Oh the last one from me....

10. Only if you have a lawyer who gives you a good rate, can you ask your wife to help bleed the brakes!

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