February 20, 2017After we finish welding the Polini 250 motor mounts we have to protect the tubes from corrosion.
Here you can see where we have removed the self etching primer before welding. This leaves the frame susceptible to corrosion.
We have also drilled pressure relief holes. These help prevent pressure buildup inside the tubes as we weld them. If the pressure is allowed to build up it can cause the weld to blow out.