Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer

Managed to smooth out the rust from almost all of the pistons except this one.















Considering the depth and the size against the width of rubber seal, probably it can be re-used but I'm more worried about the very low annual mileage and
what will happen in few years time.

Therefore, decided to replace this smaller piston at the FL caliper.


















Because of the beautiful external condition of all of the caliper bodies (coating applied to preserve the OEM original appearance???),
didn't want using the harsh chemical to remove and prevent the future rust so had to use the old fashioned way of using my hands, tools, etc
in order to apply special treatments.

Before/after inside of the front caliper body.
Beautiful.

Taking extra time at the rear calipers as the rust level was much deeper than the front ones.


















The usual front caliper service kit and there are extra chemicals/tools used only for those using my service to
prevent rust getting inside the caliper in the future.