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I’ve installed 4 new break calipers, a new break booster and a new master cylinder (master cylinder is bled) my break lines are good and my pads are good also.. Today I was confident that I would get the car to make good stops but unfortunately no. That was not the case. I’ve installed all calipers and break lines tight, but when I try and bleed them, they leak from the middle of the caliper. No matter how tight the calipers are screwed together it always leaks from one of the calipers. My uncle told me there is little rubber gaskets that come with the calipers. This is what appears apparently keeps them from leaking and gushing break fluid. These are not secured in any way when I get a new break caliper, they fall out easy and are very hard to find but regardless I didn’t know I needed them and orileys and autozone do not sell them or know anything about these. Please can someone help.
This is where the tiny stupid rubber gaskets go..
Last edited by ChristineTheVette; Apr 13, 2021 at 09:19 PM.
If those calipers are doing that "right-out-of-the-box" why bother keeping them? You should take them back. That's BS poor quality.
If they can't be trusted new, how can they be trusted a yr from now.
Get your money back. Find an alternative supplier.
Last edited by HeadsU.P.; Apr 14, 2021 at 08:21 AM.
This is what appears apparently keeps them from leaking and gushing break fluid. These are not secured in any way when I get a new break caliper, they fall out easy and are very hard to find but regardless
Those rubber o-rings do not 'fall out easy' unless you disassembled the new calipers? The calipers do not need to be taken apart for installation, only if you are rebuilding them yourself.
If those calipers are doing that "right-out-of-the-box" why bother keeping them? You should take them back. That's BS poor quality.
If they can't be trusted new, how can they be trusted a yr from now.
Get your money back. Find an alternative supplier.
This.
I bought 4 reman Delco calipers from an online retailer. One leaked before I had the car off the jackstands. It's replacement leaked also. They all came off and were sent back!
My local Corvette shop owner is a C3 brake whisperer, I'm having him set me up right so I can then maintain them properly.
Those rubber o-rings do not 'fall out easy' unless you disassembled the new calipers? The calipers do not need to be taken apart for installation, only if you are rebuilding them yourself.
You know what.. I just realized that... I didn’t need to take them apart all this time I could’ve just slid them on THAT EXPLAINS WHY THE BOLTS ARE SO DAMN TIGHT ON THEM!
One of the issues with buying rebuilt calipers is the rebuilder generally sand blasts the old caliper .....and the ones I've seen (when later taken apart) is, the area where the o-ring goes is also sand blasted. The rough texture doesn't make for an optimal o-ring seal. Secondly, some calipers that may have been leaking in that area (prior to being rebuilt), may have had rust flakes at the leak point ....and after blasting, I have seen minor pits. So that's potentially a double-whammy that works against creating a good o-ring seal.
What I've done is machine that area smooth on both halves where the o-ring goes. Then you can achieve a more reliable seal between the halves. The way I do it, is quite simply, cut a piece of 400# sandpaper and thin rubber (like inner tube) about 3/8" or so in diameter ...and glue them onto the end of a short 3/8" dowel. and spin it in a drill (with some WD-40 or cutting fluid). Makes a nice smooth finish. Seals well.
Gotta agree. Buy the Very best you can afford. I will NEVER buy a reman. or rebuilt brake part again. Just spent almost 1800 bucks and a year tracing down a leaking caliper. The 6th mechanic finally found the leak.
Break calipers leaking...
