I took my forks off last night to flush and clean them. Well I took the cap and spring off and drained the oil and turned it upside down and starting pumping the damping rod to get the rest of the oil out and a flat washer fell out. (looks like the one under the seal) Strange So I took the other down and did the same procedure and no washer fell. what is the deal? did it somehow get past that retainer collar thing?