I posted this in another thread, but I feel it deserves its own.
I recently (~3 months ago) bought a set of front ATE calipers (w/ brackets) from Turner Motorsport. I have a couple serious complaints about whoever is doing the actual rebuilding.
My first issue was that one of the calipers was rebuilt with the wrong height piston! I had brand new Hawk pads to go along with the calipers and was finding it impossible to fit the caliper and pads back on the rotor disk. I got very frustrated and ended up disassembling both calipers only to discover that one of the pistons was 3/16" taller than the other prohibiting installation of my new pads. Luckily, I had a few old calipers with decent pistons in them so I was able to put the correct size piston in.
My second issue is with the bleed screws. I was noticing slight build up of brake fluid on the bottom of my calipers even before I was out on the track. I knew they were snugged up and the pistons seals and lines were not leaking. I did some more investigating with my spare ATE and Girlings and discovered that ATE and Girlings have different bleed screws! The tapered portion that seals with the inside of the caliper has a slightly different taper/angle. Check for yourselves! Of course my ATE calipers from Turner came with Girling bleed screws and this is why I was getting fluid leak/build up on the bottom of my calipers. I installed the correct bleed screws and it seems to have only helped, not fixed, the leak. I’m concerned that the Girling bleed screws ate into the caliper and scored the mating surface prohibiting a proper seal with the ATE bleed screws.
Has anyone else had similar or other issues with these calipers from Turner?