Can anyone identify these fuel pump parts? - Picture Attached - 1985 75HP

[BrettNC]

I have a 1985 75 HP Mercury with the triangle fuel pump. I am missing the spring and cap (6 and 7) in the diagram attached. Does anyone know what these are for, and how are they installed? Does the cap press directly against the diaphragm?

Thanks.

 

[Laddies]

Re: Can anyone identify these fuel pump parts? - Picture Attached - 1985 75HP

They are used to increase pump boast and and yes the cap or plate goes against the diaphragm

 

[BrettNC]

Re: Can anyone identify these fuel pump parts? - Picture Attached - 1985 75HP

Thanks Laddies. I also appreciate your answer to my seal question a few weeks back.

What does the spring press against - one of the check valves?

 

[Laddies]

Re: Can anyone identify these fuel pump parts? - Picture Attached - 1985 75HP

Some had a pin on the check valve retainer but it seems like some were on the valve it's been long enough I really don't remember