If you’re asking about the doohickey spring it’s because the design is wrong. I’m not sure I can explain it well but the sloppy hole/shaft fit allows the tensioner arm that one end of the spring attaches to constantly jerk on it. Even though the original adjuster plate (doohickey) is clamped tight with a bolt the shaft with the tensioner arm attached to one end of the spring can pivot back and forth a lot. Using the torsion spring bypasses the tensioner arm and uses the tighter fitting Eagle Mike’s doohickey to rotate the shaft then lock it in place.Has anyone figured out why the coil spring fails in the first place?
Please someone help clarify this...