Yeah I wondered if it was assembled wrong. Not alot to screw up though...kinda doubt it. I did have the check valve in there once, but after finding out in the clutch section in the shop manual that I wasn't supposed to put it in, I took the master out and disassembled the clutch side, taking out the check valve. There was also a rubber o-ring that sits at the end at the outlet. The manual also showed that I was not supposed to install this, but seeing how it was stuck far in there, I didnt see how it could cause harm, so I left it in.