Quote:
Originally Posted by 1990C4S
There's no coating. I the bores are very difficult to clean, unless you separate the caliper, which I wanted to avoid.
The pistons are just ground to size, I cleaned mine up with steel wool. I was expecting to see some rust spots, but it was very clean.
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I rebuilt mine once. The advice on the board was don't split the calipers as it is a difficult task to get the back together properly. My rebuild was good, but the old calipers were really getting ugly. I had PBM rebuild them, and they do split the calipers, the plate the calipers, and they come back looking and working like new.
The hardest part of rebuilding them is getting the piston angle rotated just right. PBM does it right.