Is there just liquid pumping in these channels or a mechanical stick or something? If latter this could explain the curvature, to avoid getting stuck?
You are viewing a single comment's thread from:
Sort: Trending
It's just liquid with a few balls here and there that close channels. There are straight pistons in aswell but they are contained within their own circular tubes.
So yes just oil moving through them.
I'll do some research on that topic.