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YOUR RESEARCHBrake Caliper Rebuild
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seals
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Reported cause · Original poster
This is due to the seals with in the caliper failing and the fact I DE a 13 yr old car.
Leading evidence: 'seals' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'seals' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace thge seals i also added goodridge ss brake lines' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed
I just painted my calipers red, and I used the PORSCHE decals from Suncoast -
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Replace thge seals i also added goodridge ss brake lines
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Suggestion · Original poster
Besides changing thge seals I also added Goodridge SS brake lines.
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I'm still not done but am getting close.......will be driving my buddy's Previa for a few days.
Getting ready to do a rebuild on my calipers. The left front has turned a dark gold from the stock silver on a C4 and the front right is close behind. This is due to the seals with in the caliper failing and the fact I DE a 13 yr old car. I have the seals coming from Chris Whaley and been watching Van's YouTube vid of the DIY. I will also be painting the calipers with the G2 system. Here in lies the question....the Porsche logo needs to be added after I paint. Would you use a high temp vinyl sticker or use a stencil and paint? What say you?
The Porsche stickers work well and way easier than getting a perfect stencil done on all 4 calipers. Not sure what the G2 system entails but when I painted my front calipers I clear coated over the stickers and it's held up just fine. now my rears are orange with no clear left so I'll have to do those at some point.
By the way, How's the DE season going up there?
Carey- What type of clearcoat did you use? The DE season so far is great. Done 2. I have Harry's LapTimer and it works great as tool to see where I can work on improvements. Wanted to sign up for one next weekend but the brakes have been giving me soft pedal at the end of the day. Its time to do some maintenance.
I just noticed that ECS tuning (I am not affiliated) has a clearance sale on new oem calipers (well, one side). Maybe you can E-mail them to see if you can get better pricing on the side that isn't on sale too..Might be worth it for new parts (no need to paint and rebuild) seing as you can probably sell your oem calipers in need of a rebuild for a faire amount in the classifieds to make up for a good difference. Just a thought.
http://www.ecstuning.com/Porsche-199...king/Calipers/
That is a great option! Thanks for that but I'm going with the rebuild......big part of it is I can rebuild both fronts for $300. Seals / Caliper paint / stickers. Plus I just want to learn how to do it.
That's a great DIY. My calipers are in excellent shape but because of high mileage I might do a rebuild myself this winter when everything is appart.
Take lots of pics for us!
I just painted my calipers red, and I used the PORSCHE decals from Suncoast -
http://www.suncoastparts.com/product//caliperdecal.html
Sandblasted the calipers down to bare aluminum, rebuilt with fresh seals, sprayed with VHT Caliper Paint (Real Red), applied the decals (3" White), then clear coated with VHT Caliper Paint Gloss Clear. They came out great!
Just take your time applying the decals. I used blue painter's tape applied across the length of the caliper body as a guide. Mark the center point of the caliper on the tape and on the decal, then line up the points and apply the base of the decal along the edge of the tape. I've seen too many DIY jobs ruined by misaligned decals.
Pete, I don't remember which clear we used but as another member just post VHT makes a high temp caliper paint and clear coat. I use harry's timer as well. I've found the app to be pretty accurate. Good luck on the rebuild. As our cars age it's really important to maintain critical components, especially if your tracking. I'm heading to sebring this weekend which is notoriously hard on brakes.
Ferd....The caliper starting discoloring before I added GT3 brake ducts. The heat has damaged the seals. For a 13 year old car with 110,000 miles that ain't bad.
Well with a 3 day weekend I decided to finally dig in and do the rebuild. Besides changing thge seals I also added Goodridge SS brake lines. Last to do will be painting the calipers. You need a 10mm and 11mm flare nut wrench and patience. Also pick up some plastic bowls from a parts store for putting calipers in and for catching the brake fluid that comes out. I started at the rt rear and that oozed the most fluid. By the time I got to the left front it was just a drip. With a 13 year old car the brake lines needed some persuasion to get loose. Some fittings came off good after being soaked with PBlaster....others came off with adding heat. I wrapped the areas with wet rags that I did not want to get torched.
My front left caliper looked like this.
brown caliper.jpeg
I used the tips from Van's DIY on youtube. The pistons came out one by one by using small clamps and compressed air. Tip is to leave the bleeder screws in the caliper and blow air in the hole where the hard line goes.......and since I'm painting the calipers when I'm done loosen the bleeder screws before you take the caliper off the rotor. I didn't and had a b#tch of time getting them off. I stripped two bleeder screws before that light bulb went off in my head.
caliper clamp.jpeg
The seals were in very bad shape. They came off in pieces. This is a pic of the spent seals.
worn caliper seal.jpeg
And here is a piston with what is left of the seal.
piston with bad seal.jpeg
The seals are 36mm and 40mm. Each caliper gets 2 dust boots and 2 o-rings of the 36 and 40 size. Coat the seals with brake fluid before you install. Use the pistol grip clamps to get the piston seated. Got 4 clamps at Harbor Freight for $8.
I'm still not done but am getting close.......will be driving my buddy's Previa for a few days. I did not take a lot of pics because between the thin rubber gloves and the brake fluid I did not want to ruin my phone. I'll post again when I start to paint the calipers.
