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Forum nameHandling/Suspension
Topic subjectdesperate need for advice: New brake pads too thick, CAN'T FIT
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=6&topic_id=27440
27440, desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by jsupetran, Dec-31-69 06:00 PM
Okay guys, the new brake pads are about twice as thick as my old pads and can't fit!

I called pepboys to see if they gave me the right part and they said that yes, based on the part numbers, they should work. The pads can seat inside the bracket, but when I swing the caliper down, the caliper won't fit since the pads are too thick.

Do you think I should push the piston back down more with the C-clamp?
27441, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by 420a-Tnthewerks, Dec-31-69 06:00 PM
You have to take like a c-clamp and clamp the piston down until it's all the way down.

edit- if that makes any sense.

c-clamp:



You'll see a round cylinder(piston) on the inside of the caliper where the pad goes. Put the c clamp over it and the caliper. Start tighting the c clamp until the piston is all the way down.
27443, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by jsupetran, Dec-31-69 06:00 PM
Thanks man. Okay, so I am going to try this but need some extra clarification. Should I let the caliper stay with the rotor and it's bolted on there, or should I take the caliper off, then put the c-clamp on there?
27444, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by djtrickee, Dec-31-69 06:00 PM
Originally posted by jsupetran
Thanks man. Okay, so I am going to try this but need some extra clarification. Should I let the caliper stay with the rotor and it's bolted on there, or should I take the caliper off, then put the c-clamp on there?


It doesnt matter. Think about the original question for a second. When you use the brakes the pads get worn down, therefore getting thinner and thinner as time goes by. The pistons have to extend further to keep the pad at the minimum distance to the rotor. When you release your foot off the brake pedal it doesnt pull the pads back into the caliper. They are still within fractions of an inch from the rotor. Therefore as the pads wear down, the pistons have to extend further and further out to keep the pad at the rotor. Is this making sense? When you get new pads that are the original thickness the piston must be returned to its starting point to allow for the thickness.

I can't believe I just typed all that.

Oh and by the way there is some dude in the General forum posting a very similar question... pointing to a similar question... or something like that.
27445, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by jsupetran, Dec-31-69 06:00 PM
Okay cool thanks you thank you thank you. This is actually for my mom's pt cruiser and I've never done this before.
27449, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by MCubed45, Dec-31-69 06:00 PM
lol i would hope your new pads are thicker than the old ones. if not you just got ripped off. but yea you hafta press the pistons in quite a bit. it's more of a pain with dual piston calipers like the GSX ones b/c they tend to push the one you're not working on out. unless you just use two clamps at once.

oh and you don't need to take the caliper off the brackets. just take off one bolt and swing it out.
27451, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by jsupetran, Dec-31-69 06:00 PM
Yeah got it done and mom = happy. You guys were right!

Brake shop charge 300+.
Me doing it. 100=Priceless.
27452, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by djtrickee, Dec-31-69 06:00 PM
Originally posted by jsupetran
Yeah got it done and mom = happy. You guys were right! Brake shop charge 300+. Me doing it. 100=Priceless.


You doing it = broken. :P

You doing it with help from the helpful people at 2GNT = Priceless
27456, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by DR1665, Dec-31-69 06:00 PM
Originally posted by djtrickee
You doing it = broken. :P

Ain't that the truth! :P
27457, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by .bs0d, Dec-31-69 06:00 PM
you can push it in with your hands if you loosen up the brake bleeder --push it all the way in, brake fluid squirts out.

btw; you remember to bleed the brakes afterwards, right?
27461, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by totaleclipse_05, Dec-31-69 06:00 PM
you shouldnt need to bleed the brakes after changing just the pads should u? i know i have changed brakes on a couple integras and another eclipse and never had to do that and they worked just fine.
27462, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by jsupetran, Dec-31-69 06:00 PM
Originally posted by totaleclipse_05
you shouldnt need to bleed the brakes after changing just the pads should u? i know i have changed brakes on a couple integras and another eclipse and never had to do that and they worked just fine.


Yeah as long as you don't disconnect the brake lines and they are exposed to air. My mom's brake are working great btw. No squeeking or anything.
27518, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by Kaoz78, Dec-31-69 06:00 PM
I personally just break the bleeder loose real quick and then re-tighten it. I have done brake jobs on several cars this way and never had any air in the lines.
27685, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by eclipse7782, Dec-31-69 06:00 PM
Congradulations you just let air into the line. You dont have to bleed the brakes unless u disconnect the brake line or open the bleed screw. If when you opened the bleed screw brake fluid didnt come shooting out u just let air into the brake line. And the only way for fluid to come shooting out is unless someone else is holding down the brake pedal when you open the bleed screw.
27687, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
Actually, if the piston(s) is/are being compressed, fluid will come out.

Congratulations, you just gave bad information.
27688, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by MCubed45, Dec-31-69 06:00 PM
it's prolly not the best to open the bleed screw while changing pads since your calipers most likely positioned such that the screw is not the highest point on the caliper. the caliper gets flipped upside down when you swing it out so you can compress the pistons. this puts the screw at the bottom. i'm sure you can figure out why this is a bad time to open it.
27689, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
Still, if the pressure in the caliper cylinder is higher than atmospheric, it will not matter which way is up, unless you are trying to get air out of the cylinder.
27691, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by dmt111701, Dec-31-69 06:00 PM
opening the bleeder is the only way to correctly compress a caliper
27697, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
No, a C clamp works just fine, too. ;)

I just like opening the bleeder better. Just make sure that you open it as you are pushing on the piston, and close it while you are pushing on the piston. Failure to do so can introduce air into the system.
27711, RE: desperate need for advice: New brake pads too thick, CAN'T FIT
Posted by ez, Dec-31-69 06:00 PM
yea, use C-clamps. I am an idiot and like to use my hands instead to push the piston in. it makes a man out of you tho'
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