Water Cooled Cox .049

This was my 1st attempt at a water jacket for these tiny engines and it didn't come out too bad, it's not 100% level with the cylinder but it works!
I used sheet aluminum, aluminum pipe, Small 4mm steel pipe I believe, and JB wield.
It does really well cooling the prop-less engine including the head, after the run it was only luke warm.
I'm eventually add a tiny radiator and pump to make at a closed loop because at the moment



*Sorry for the shaky camera footage*