So I got a Bosch 044 inline fuel pump, I believe the inlet is M18x1.5 and the outlet is M12x1.5. Well, I bought two AN fittings, one M18x1.5 and one M12x1.5, both with male ends. I test fitted the inlet side, the threads have alittle play, doesn't seem to fit all that well to be leak proof. The outlet side of the pump already has a fitting on it, looks like some kind of brass fitting, and looks like there is a spring in there. Does this brass piece stay on? I'm guessing it is maybe some kind of valve, for safety? Well, I just want to know what kind of connections I need, because it seems like the ones I bought are not the correct ones. Then I thought that I need the o-ring style AN fittings, but did not find any with metric threads. This is my first time doing this and I'm not sure what I need. I will try to get some pictures up when I get home tonight.
Thanks