Not bad but a more blind approach and would need to be exact. The hose can wave around like a magnet and catch it. If it appears below the hole, the grabber may be good. But the piston top is not perpendicular to the hole centerline as far as I know. That is a good thing for the tube because button will be on the gravity down side. I'm asking him to push button down against bore wall to trap it for the suction tube. Also asking of suction tube can be attached to scope head, sticking out a little so as to see it, and guide it right to the button. Hole probably not big enough for that. Maybe stick hose in after scope head goes in and then visually guide it to button.
This motor is looking for 125 PSI + 10% variation OK. Maybe. Consistency, as we all know, is important. It's a dry motor right now and it can't be brought up to temp either.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn