Need help identifying fuel system part from 1991 200HP V6

[Greg_E]

I was going through a box of parts from an engine I salvaged for spare parts. I found a black plastic tee check valve. The inlet and outlet barbs are 1/8" ID fuel line and it looks like it may have been mounted between the fuel distribution manifold and the primer solenoid inlet. The barb at right angles to the other two has 1/16" ID smooth hose like the recirc. hoses. There is a tiny broken tee in the other end of that hose, but I don't know where it is supposed to go to. I did not see this part in the hose routing diagram or the exploded view of the intake manifold. I can't post a picture right now. The part is about 13/4" including the barbs with a large arrow molded in, indicating the direction of flow.

 

[Strangeleak]

I'm fairly certain that is the check valve that goes from the bottom nipple of the crankcase to the top of the crankcase to oil the top crank bearing. The side incoming tee should be from one of the lower starboard cylinders. One part of that goes the the recirculation check valve behind the reed plate, the farthest end goes to the brass nipple threaded into the cylinder wall.

 

[Greg_E]

I'm fairly certain that is the check valve that goes from the bottom nipple of the crankcase to the top of the crankcase to oil the top crank bearing. The side incoming tee should be from one of the lower starboard cylinders. One part of that goes the the recirculation check valve behind the reed plate, the farthest end goes to the brass nipple threaded into the cylinder wall.

That's it! Item 13 in the cylinder and crankcase diagram. Thanks for the help.