Algodoo

It is not meant to be a realistic representation, hence he lack of timing and care about where things go, as long as it works. I just worked on this on my free time changing little things and it eventually led to this.
I was mostly curious about how effective a pump would be in Algodoo, then liked it up to my 6 cylinder spring engine, And then I just wanted to add a few details.

The D key toggles valves that dump the oil back into the reservoir.