Hi guys I appreciate that this is a pump area although I hope someone's he who knows their way around a trilogy. Basically I recently got one and made the school boy error of taking it to pieces without remembering where everything else goes! I'm left with about 4 spare parts and not entirely sure which one out of two screws is the valve retaining screw 
So the valve retaining screw is either the silver or the black one. The silver one is threaded all along it with a concave tip and the black one is threaded about halfway with a metal circular lug at the tip?
I'm also left with a small spring and a small ball bearing lol?
I've spent all night trying to find a diagram etc but there's just nothing on the t'internet!
So the valve retaining screw is either the silver or the black one. The silver one is threaded all along it with a concave tip and the black one is threaded about halfway with a metal circular lug at the tip?
I'm also left with a small spring and a small ball bearing lol?
I've spent all night trying to find a diagram etc but there's just nothing on the t'internet!