: Caliper rebuild?



felix711
05-12-13, 08:33 PM
When changing brake pads, is it a good idea to rebuild the calipers? Thx

DCV
05-12-13, 09:27 PM
I doubt it, Calipers should not need a rebuild unless tons of miles or you burn up the piston seals doing track or racing. I have rebuilt many motorcycle calipers but only after 50K miles or so an/or real racing.

Random84
05-12-13, 10:20 PM
+1

Unless you've tracked the car and overheated the calipers (ie you changed the color of the caliper or rotor), there's no need to rebuild calipers.

Haze
05-12-13, 11:48 PM
Calipers should last you years and years without a rebuild. There is no need to rebuild them unless you get uneven pad wear showing a hung up piston or it starts leaking. Give yourself a break and do something else on the car.

spearfish25
05-13-13, 12:16 PM
i've burned up the dust boots on my cars routinely at track days and rebuild the calipers every year. It's a royal PITA. Unless you've done an aggressive track day, you shouldn't need to rebuild them without other issues going on (hanging, leaking, etc). You can examine the dust boots when you pull out the pads.

cruiser68
05-13-13, 12:56 PM
i've burned up the dust boots on my cars routinely at track days and rebuild the calipers every year. It's a royal PITA. Unless you've done an aggressive track day, you shouldn't need to rebuild them without other issues going on (hanging, leaking, etc). You can examine the dust boots when you pull out the pads.

Really? That gives me something else to check on the brakes. How many track days do you run in a year?

DCV
05-13-13, 02:27 PM
I suggest getting some BrakeClean, and spraying it all over the caliper pistons if your doing lots of track days when you change pads. That and a toothbrush to scrub the junk out. I always do that with my motorcycles that use multiple opposed pistons calipers. That will really help the pistons from getting gunked up and possibly drag or seize. Its nasty how much gunk gets in that area.

spearfish25
05-14-13, 04:16 AM
Really? That gives me something else to check on the brakes. How many track days do you run in a year?

I do about 4-6 track days a year and a bunch of auto cross. The auto cross is a nonissue for brakes but one or two sessions during a track day, especially if its hot outside, will toast dust boots. My experience hasn't been in CTS-Vs (yet!) so the V brake cooling and heat tolerance may be better. But I know that even Vette owners will sometimes skip installing dust boots since they vaporize during hot lapping.

DCV
05-14-13, 11:40 AM
Real race calipers don't have dust boots just for that reason. My Alcons in my Audi did not have them. THey get toasted and can freeze up the calpier pistons.