The bike first started clicking now & again whilst pedalling, eventually it just didn't drive the wheel anymore, as soon as you put your foot on the pedal the rear cog just spun round. I pulled the hub to bits and it was gunged up with bmx track & oil and the pawls were not springing back, i soaked all the bits in white spirits over night & cleaned them up with wire wool. Now the pawls spring back and the click is louder on the hub and you can pedal but it's slipping a bit, feels like they are not catch properly. The spring feels a little slack too so thought i'd just renew them and go from there. Do you have any suggestions for other makes?