Caliper cleanup & rebuild *pics*
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Caliper cleanup & rebuild *pics*
Since I was unable to find any caliper rebuild how-to's with images, I thought I'd snap some pics of mine as I went, maybe share some insights along the way. Here are a couple "before" pics.
The caliper really is not as dirty as it looks. A summer of track days turned my cheap caliper paint dark / black. This was the Dupli-Color caliper paint - only rated to 500 degrees.
You can also see the calipers were in dire need of attention. Note the cracked dust boots etc.
The caliper really is not as dirty as it looks. A summer of track days turned my cheap caliper paint dark / black. This was the Dupli-Color caliper paint - only rated to 500 degrees.
You can also see the calipers were in dire need of attention. Note the cracked dust boots etc.
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Here's how I went about removing the pistons. Ensure you have something to stop the pistons or they will fire out with surprising force and spray brake fluid everywhere. (Voice of experience...)
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Here is a before and after of the pistons. It really took some work to get them back in shape. They were scarred from being forced unevenly into their bores, but fortunately the scarring came out with some red jeweler's polish. Before that I cleaned them with steel wool. Do NOT use sandpaper or anything abrasive that might scratch the mirror finish on the pistons!
Oh, and if you need an excuse to purchase a Dremel, this would be a good one!
Oh, and if you need an excuse to purchase a Dremel, this would be a good one!
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I definitely needed to clean up the calipers before putting any new paint on them... nothing else would even begin to remove it, so I had to use the intense stuff...
then lots more use of the Dremel to get it to this stage...
then lots more use of the Dremel to get it to this stage...
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This pic doesn't really fit here in the flow of the project, but at some point you need to remove the old seals. The "dental pick" tools are invaluable for this.
After you get these out, clean the bores, then clean them some more, then clean them some more. Get absolutely every little bit of dust and grime and grit out before inserting fresh seals.
Use only brake cleaner for cleaning, as any other cleaner can leave a residue.
And use only brake fluid to lube the seals for reassembly!
The seals and fresh dust boots come in a "caliper rebuild kit", available from Mazdatrix.
After you get these out, clean the bores, then clean them some more, then clean them some more. Get absolutely every little bit of dust and grime and grit out before inserting fresh seals.
Use only brake cleaner for cleaning, as any other cleaner can leave a residue.
And use only brake fluid to lube the seals for reassembly!
The seals and fresh dust boots come in a "caliper rebuild kit", available from Mazdatrix.
Last edited by zullo; 01-22-05 at 11:19 AM.
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I'm missing a pic of the completed caliper with boots replaced... it was blurry. Sorry. Safe to say it looked much better than the "before" pic in the first post.
Anyway, several coats of Plasti-kote 1200 degree caliper paint later, and with some Dremel sanding and polishing of the Mazda logo...
Anyway, several coats of Plasti-kote 1200 degree caliper paint later, and with some Dremel sanding and polishing of the Mazda logo...
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I used regular old brake cleaner. Absolutely nothing else should go in the caliper bores. I'll go back and edit that post, cuz that is important. Clean with brake cleaner only, ensure it is all evaporated before reassembling, and lube only with brake fluid during reassembly.
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I wish I could say I had a pad and rotor I'm happy with, but I can't. On the street I'm fine with whatever rotor and Axxis Ultimate pads. For track days, I'm still looking for a pad that lasts longer than a weekend and a rotor that won't warp in a weekend. Suggestions welcome. I am installing the N-Tech backing plates and 3" ducts which should help significantly with this next summer. As far as fluid goes, I use Motul 600 for the track - and yes, I have Goodridge stainless lines.
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Nice writeup! The caliper looks awesome all new and shiny . You did a great job cleaning the pistons up - I'm amazed at the shine you got!
I've rebuilt my FC calipers a jillion years ago - it's actually pretty easy. Just be sure to use the right stuff for cleaning everything (brake cleaner and brake fluid for lube) and it's all good.
Dale
I've rebuilt my FC calipers a jillion years ago - it's actually pretty easy. Just be sure to use the right stuff for cleaning everything (brake cleaner and brake fluid for lube) and it's all good.
Dale
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looks dope
oo for u guysthat wants to paint your calipers dont use the duplicolor brand
that u have to brush it on instead of spray
it sux a$$, i got another pait from auto zone and looks clean!!!
i will start my own thread later with pics
nice work btw
mike
oo for u guysthat wants to paint your calipers dont use the duplicolor brand
that u have to brush it on instead of spray
it sux a$$, i got another pait from auto zone and looks clean!!!
i will start my own thread later with pics
nice work btw
mike
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Rears are probably due also, but fronts were my big priority.
I masked off most of the back and mounting points. No need to waste paint or have the mess in threads or on mounting points...
I masked off most of the back and mounting points. No need to waste paint or have the mess in threads or on mounting points...
#22
just curious do the piston seals have direction?
I noticed that the seals have a red and green line on them, I wouldn't know how but are they supposed to go in a certain way?
thanks
Rip
I noticed that the seals have a red and green line on them, I wouldn't know how but are they supposed to go in a certain way?
thanks
Rip
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Great timing!! I was just about to remove my front calipers to do the same thing!! I just got online to do a search on a how-to for this project, and it showed up right in front of the 3rd gen forum. Thanks for the info.
#24
Originally Posted by Rip
just curious do the piston seals have direction?
I noticed that the seals have a red and green line on them, I wouldn't know how but are they supposed to go in a certain way?
thanks
Rip
I noticed that the seals have a red and green line on them, I wouldn't know how but are they supposed to go in a certain way?
thanks
Rip