Hi All

Possibly a question best directed at Eric Shea or other brake/racing people... I threw my SWB brake pistons into my vibratory polisher for a clean up pending caliper restoration and have found that the walnut has gotten into the knock-back mechanism of the pistons. The rear 38mm are easy as the knock-back mech comes out with a circlip; but the 48mm pistons don't seem to have the same arrangement and I can't quite figure out how to remove. Anyone deleted the knock-back mech on their M calipers?

Cheers