The trim would not work up at all, but it would begin to pull down. It would not pull down to the point I couldn't hold it with my hands. I removed the pump/cylinder from the motor and began to take it apart. The hex shaft from the motor to the pump was fine. I then pulled the block that houses the pump and springs off. I removed it in a mannor that all the springs and check balls stayed in tact. The pump looked ok. I found that the plastic valve that you turn to release the psi so the engine can be lifted or lowered manually had the tip broken off inside. I got this out, but my question is: Is the pump supposed to work with this tip broken off? I reassembled everything and I can spin the pump with my drill, but I don't notice any fluid coming from the ports. I am somewhat familier with hydraulics, but I don't understand how this works or where each port goes. I can see the rocker on top of the block switch one way, but it dosen't want to switch the other way when I reverse the direction with my drill. I do not have a manual and I know this would probably answer my question, but I do not plan on keeping the engine and it seams to run fine. So I was hoping to get out of buying one. Any ideas? I will try to post a pic of the plastic piece after while, but have already assembled the rest of the unit so I can't take pics of the other parts. I hope I have made it clear what parts I am talking about.