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I'll try it if it looks good great if not then I'll remove them from the bracket but not the car thanks guys for you input but no one answered the question about parts of the caliper to avoid lol. I'm brushing the paint on not spray not enough control and don't want any over spray on the car.
just curious as to why would you need to rebuild the seals for painting I'm not taking the calipers a part not really seeing why I'd have to please enlighten me on this.
You don’t have to take the calipers apart to replace the seals and boots. I think what is being said is once you’ve gone to the effort to remove the calipers from the car, it makes sense to replace the seals, and the boots can be torn allowing dirt to enter. You just need to remove the pistons. These cars are 15-20 years old and rubber is definitely a wear item. Caliper rebuild kits are cheap. It also gives you a chance to polish the pistons and cylinder walls to remove varnish and inspect for any corrosion. I just finished resealing all 4 corners on my 911 SC.
Last edited by autobonrun; Apr 20, 2021 at 11:57 PM.
You don’t have to take the calipers apart to replace the seals and boots. I think what is being said is once you’ve gone to the effort to remove the calipers from the car, it makes sense to replace the seals, and the boots can be torn allowing dirt to enter. You just need to remove the pistons. These cars are 15-20 years old and rubber is definitely a wear item. Caliper rebuild kits are cheap. It also gives you a chance to polish the pistons and cylinder walls to remove varnish and inspect for any corrosion. I just finished resealing all 4 corners on my 911 SC.
Great answer thanks now is there a write up or vid on this I don't mine trying anything with good direction.
Great answer thanks now is there a write up or vid on this I don't mine trying anything with good direction.
I don’t have a video. I will say that a 4 or 6 piston caliper will be more of a challenge than the 2 piston calipers on my old SC. The difficulty for me has always been how to pressure the pistons out once the calipers are removed. I’ve never tried to pressure out 4 pistons. If they all don’t pop out at the same time (highly likely), you have to seal that hole while you repressure the caliper. I slightly pressed the piston back in then used a c-clamp to hold it in place.
With that said I did repaint the calipers on my 993 without removing them. I used paper and tape to completely isolate the caliper. It’s not perfect but I wasn’t seeking perfection. If you zoom in you can see where I also taped over and reused the Porsche logo.
I forgot I had photos of the pistons from my SC. One shows the gummy buildup that I had to polish away. It can cause the piston to stick. The other shows the c-clamp I used to hold the freed piston in place while I removed the other. The old brake pad lying there is what I tried to use by placing it between the two pistons to keep it from coming out completely. I’ve never tried this exercise with 4 of 6 pistons.
Last edited by autobonrun; Apr 21, 2021 at 12:58 AM.
The July 2017 issue of Panorama has a really good article titled "Braking Bad" on caliper painting/rebuilding. If you are a PCA member, you can log in and read online.
I don’t have a video. I will say that a 4 or 6 piston caliper will be more of a challenge than the 2 piston calipers on my old SC. The difficulty for me has always been how to pressure the pistons out once the calipers are removed. I’ve never tried to pressure out 4 pistons. If they all don’t pop out at the same time (highly likely), you have to seal that hole while you repressure the caliper. I slightly pressed the piston back in then used a c-clamp to hold it in place.
You can just stick a piece of wood about the same width as the brake disk in there before you pressurize. All the pistons should pop out partway, hit the relatively soft wood to prevent damage. Remove the wood piece and pull them out the rest of the way by hand.
You can just stick a piece of wood about the same width as the brake disk in there before you pressurize. All the pistons should pop out partway, hit the relatively soft wood to prevent damage. Remove the wood piece and pull them out the rest of the way by hand.
Correct. I’ve used wood as well. Couldn’t find the right thickness this time so I used the old pad. One thing however is the pistons don’t always pop out at the same time and the same amount. It depends if one has a higher surface friction due to corrosion or buildup. Best feeling in the world is when they do come out at the same time.
Ye Sir did them myself I used HYPERGREEN BRAKE CALIPER PAINT METAL STEEL ENGINE. found it on ebay and comes from Germany covers really well better than G2 and Duplicolor.
