Re: Johnson 9.5, 1972 fuel pump kit

[dougs-outboards]

Frank is correct (as usual 🙂 it is part number 393088 (Sierra 18-7823).

I am looking in my NAPA Sierra marine parts book, and it lists it as that. Pic shows a complete kit, available thru your local NAPA Store. Here in town Seirra parts are also available thru O’Rielley’s or Cost Less Auto parts, if you have any of those around your area.

These pumps usually are buggars to sucessfully rebuild. Take your pump apart carefully, notice where everything is, perhaps take pics of each step for re-assembly reference. I even lay each layer out in sequence on the work bench, so I will know how to put it back together in reverse sequence. I use the mounting screws for a jig, easier to stack the parts and keep them in place.

If you are a novice, you might want to decern the layer that is the pump diaphram, (it’s the floppy soft gasket thingie that sometimes sticks out a little towards the middle) and keeping the rest intact, simply replace the diaphram which usually is the culprit, I have found.

I do not envy you, it’s a rough task, and I wish you good luck.

Many here on the site are willing to help with their knowledge, so do not be afraid to ask questions.