Originally Posted by bmwrench
I just hate seeing part names being used incorrectly It's kannidling pins and piston return springs. A weak piston return spring can lead to many hard-to-diagnose problems, including glowing generator warning lights at engine speeds above 13,000 RPM. A green bulb can improve the symptom, but does not fix the problem.
I've seen weak piston return springs unfairly blamed for causing problems when often it's due to incorrectly adjusted fledel valves.