1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Decided to rebuild my calipers....

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Old May 13, 2006 | 08:58 PM
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Decided to rebuild my calipers....

Was gonna take pictures and everything, do a how-to thread for the ol' archives...

At this point, I want to throw them through the motherfucking wall.
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Old May 13, 2006 | 09:04 PM
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glad to hear it's going that well
after so many shitty experiences with brakes I leave it to the shops
they seem so simple....deceptive
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Old May 13, 2006 | 09:40 PM
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I trade them in for rebuilt ones, but for the tightass crowd, a How To would be beneficial.
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Old May 13, 2006 | 10:04 PM
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where do you get the rebuild kits and for how much?
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Old May 13, 2006 | 10:05 PM
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Ya, wasn't worth it to me to rebuild. The rebuild kits are half the price of rebuilt calipers.
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Old May 13, 2006 | 10:05 PM
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Originally Posted by trochoid
I trade them in for rebuilt ones, but for the tightass crowd, a How To would be beneficial.
LOL it's not so much about being a tight *** as that I'm done letting the car intimidate me. If I can do it myself, I'm gonna.

Finally got the damn thing apart, had to run my air compressor into it, and drop it on the floor simultaneously.
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Old May 13, 2006 | 10:06 PM
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Originally Posted by dantheman
Ya, wasn't worth it to me to rebuild. The rebuild kits are half the price of rebuilt calipers.
Wow, you must have some cheap *** stores. Here, it was $30 for all 4 rebuild kits, and rebuilt calipers would be pushing $200.
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Old May 13, 2006 | 10:29 PM
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That, or expensive rebuild kits. Maybe they gave him a price for rebuild kits with a new piston? I know the rebuild kits are about $25-30 for all 4 just down the street, and after core charge, all 4 calipers were something like $150.

I have yet to purchase either of them, since the rotors I ordered last month still haven't arrived.
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Old May 13, 2006 | 10:45 PM
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Originally Posted by mr_ouija
That, or expensive rebuild kits. Maybe they gave him a price for rebuild kits with a new piston? I know the rebuild kits are about $25-30 for all 4 just down the street, and after core charge, all 4 calipers were something like $150.

I have yet to purchase either of them, since the rotors I ordered last month still haven't arrived.
Where did you get your rotors from? I ordered mine from rockauto, and they were here in no time... Cheap as ****, too.
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Old May 13, 2006 | 11:16 PM
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Bought them on Ebay from cquencemotors on the 28th. They said it may take up to a week to ship them, but they haven't gave me a tracking number or anything yet, so I am assuming they're not on their way yet.

I wrote them a nice nastygram letting them know that if I don't get something soon, I'll be filing a dispute with paypal.
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Old May 14, 2006 | 12:03 PM
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dude, rebuilding calipers is a cake walk if you know the easy way to do it. All you have to do is put a brake pad or a piece of wood in the caliper oposite of the piston, then blow compressed air into the fluid hole and pop it out. Then after it is out put the new piston seal, and dust boot in and set the piston on the dust boot. Apply the compressed air again to puff the dust boot out and with some fedangleing get the dust boot around the piston and it all should slide back together.

Hope that helps
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Old May 14, 2006 | 02:30 PM
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I picked up the front 2 calipers off ebay for $20 shipped. Rebuild kits here were $11 each. Calipers from NAPA were 50 each.
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Old May 14, 2006 | 06:58 PM
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Originally Posted by wickyc
dude, rebuilding calipers is a cake walk if you know the easy way to do it. All you have to do is put a brake pad or a piece of wood in the caliper oposite of the piston, then blow compressed air into the fluid hole and pop it out. Then after it is out put the new piston seal, and dust boot in and set the piston on the dust boot. Apply the compressed air again to puff the dust boot out and with some fedangleing get the dust boot around the piston and it all should slide back together.

Hope that helps
Well, it took 150 PSI to get the piston out of the front caliper... Don't know what I'm going to do about the back.
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Old May 14, 2006 | 07:11 PM
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back caliper needs to be spun out of the bore.
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Old May 15, 2006 | 11:53 AM
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Originally Posted by GavinJuice
back caliper needs to be spun out of the bore.

Tried that... It's pretty damn stuck.
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Old May 15, 2006 | 12:20 PM
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Originally Posted by $100T2
Tried that... It's pretty damn stuck.
Having just rebuild all my calipers, I feel as if I can chime in here...

The front pots can be a bitch to get out, I used a bike pump with some attachements and they came out with 45PSI. Putting the pot back in was fun especially if you don't use enough seal grease. So use a lot of that orange stuff.

The rears should spin right out. If you're a cheap ***, you can use needly nose pliers, alterantively you can get a caliper tool from Advance, AutoZone or Harbor Freight.

If the rear pots don't spin out even with the rear caliper tool, then the calipers are probably toast. You can try removing the dust boot first, as this may be the source of the hangup.

The last time I checked, the rear calipers were more expensive than the fronts.

Have fun with your brake job, I sure did.
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Old May 15, 2006 | 12:25 PM
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sounds like the pistons are rust frozen due to moisture getting in the brake fluid. lots of ppl don't know that the brake system needs flushing ever so often. as with wheel cylinders, the inside gets rust pitted and the rubber seal gradually gets worn away with every movement of the piston to the point that the fluid starts getting past it causing leaky cylinders, or u put ur foot on the brake pedal and it slowly goes to the floor. try spraying some WD40 or some kind of rust penatrating spray into the brake line hole and let them sit awhile.

as for the previous poster, he's dealing with a car with brakes that haven't been used in quite awhile so it WILL take a little more effort to get things dissassembled. i just use brake fluid as lubricant. some types of grease might have an ill effect on the rubber seals.

Last edited by rxtasy3; May 15, 2006 at 12:31 PM.
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Old May 15, 2006 | 12:44 PM
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Oops, I probably should have specified to use the grease that comes with the rebuild kit, not axle grease or whatever.
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Old Jun 20, 2006 | 10:18 PM
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Has anybody found the rubber protectors for the caliper guides?
Thanks
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Old Jun 20, 2006 | 10:32 PM
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if you **** yours up 100 i have some front calipers
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Old Jun 20, 2006 | 10:47 PM
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Originally Posted by breesej

The front pots can be a bitch to get out, I used a bike pump with some attachements and they came out with 45PSI. Putting the pot back in was fun especially if you don't use enough seal grease. So use a lot of that orange stuff.
Only pull one caliper at a time. let it hang and use the car pedal to push the pot out. gets it out easy and passes a lot of the old fluid out.

Rebuild it and reinstall, Blead and then do the other side.
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Old Aug 7, 2006 | 02:39 AM
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Yeah gonna be doing this sometime this week. I can't say that I'm over joyed, but once its done it will friggin rock.......its gonna stop good too.
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Old Aug 7, 2006 | 11:35 AM
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Don't forget to use a small hone on the inside of the piston bore. I used one of those 3 stone hones that I put into my drill. Its usually pretty caked up from the old sludge and rust in there. Otherwise the new seal will get eaten up pretty quickly and you'll be do this dance again.
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Old Aug 7, 2006 | 12:52 PM
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Originally Posted by t_g_farrell
Don't forget to use a small hone on the inside of the piston bore. I used one of those 3 stone hones that I put into my drill. Its usually pretty caked up from the old sludge and rust in there. Otherwise the new seal will get eaten up pretty quickly and you'll be do this dance again.
I must be missing something here. The seal is mounted in the bore, not on the piston, so it doesn't move. So how will anything in the bore affect the seal? The piston should be cleaned up since it's surface slides on the seal, but I don't think the bore is that big of a deal. Sure, it should be cleaned as a matter of principle, but I don't think it will affect the seal at all.

Or am I missing something?

Rich
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Old Aug 7, 2006 | 01:35 PM
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Rich, your right but if you leave the sludge in there it's likely to come loose and end up riding the piston side up into the seal and then causing problems. Good point, the piston should be cleanup as well and gone over with some polising cloth or fine steel wool to get any roughness off of them. When I do brakes I clean up all the surfaces because I've been bitten too many times by mr. murphy.
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