So I was successful in getting to the "small tube". The earlier Aspen had O-rings at the end of the small rod, my version has these three small rings.
Does anyone have later parts drawings for the Aspen?
Does anyone have a cross-reference to the Seneca O-ring part numbers?
If you don't mind...Looking for info on how to remove this part of the pump, see pencil point. It does not unscrew as I saw in a video by "Big J". It is tightly attached to the black carrier and will take some real torque to separate. It Has wrench flats ground on it but they are not a standard...