SB Rocker Arm Geometry
Here are some pictures taken outside in natural light. The first one is with the valve fully open with the retainer up against the valve seal. The second one is with the valve closed. The roller tip does sit very slightly offset toward the rocker shaft when the valve is closed but not enough to get a centered scrub pattern.
Here are some pictures taken outside in natural light. The first one is with the valve fully open with the retainer up against the valve seal. The second one is with the valve closed. The roller tip does sit very slightly offset toward the rocker shaft when the valve is closed but not enough to get a centered scrub pattern.