Hey my crank arms on my A35 are always in motion and when i try to stop them it make a grinding noise. They only spin when the tire moves. And when i try to pedal forward it does not catch just makes grinding noises. I did just replace the claw collar spring I think i left out some washers that go on the outside of the gear (rest up against the bearing. Could the washer be doing this or what do you think it is. I really need help.