Hello everyone
Before replacing the part I decided to attempt a repair.
I removed the water injector inlet and carefully cleaned the area, degreased it, and dried carefully.
I then looked around on the internet for any glue that would withstand at least 120-150°C continuously and was liquid enough to flow inside the crack.
The perfect candidate was Cyanoacrylate glue, normal superglue. cyanoacrylate can resist up to 260°C before decomposing and is inert and non toxic, moreover has a very low viscosity and flows freely inside any crack for capillary effect.
It will set and dry in less than 30 seconds and hardens by the humidity in the air (perfect for wet to be places).
So I first deployed a thin layer of super glue all over the crack and waited 5 minutes for the glue to flow into the crack and harden, then i applied a generous layer of glue all over the tip of the water injector inlet so that it will seal completely with the bottom hole and prevent most of the crack to be exposed to pressure.
Mounted it, waited 10 minutes for it to dry in closed environment, then tried it with a long coffee to test for maximum pressure for longest time.
So far, after 5 coffees there have not been major leaks, the glue seems to resist pretty well.
Of course the water inlet is now completely sealed with the body, in case the cylinder needs to be replaced i would have to saw it off....
