The forward clutch control valve strokes to turn the forward clutch on and off. Each time it strokes to the on position, the valve's narrow spring stem bangs against the steel retainer. This constant banging can eventually break the retainer. The broken retainer forces the valve off center, often bending the valve, or worse, the valve pushes right through the retainer. The problem depends on where the valve sticks, and whether the valve has broken through the plate. Sonnax has developed a replacement valve kit 96201-16K that corrects these problems.
This valve does not require a reamer. The bore sizing tool restores the original bore.