Hey guys. I'm still trying to get my late father's PK up and running. After new battery, cleaning out gas tank, fresh gas and fresh oil, I've tried to start it only to discover that the fuel pump is leaking and gas was not getting to the carb. I bought a rebuild kit and I'm trying to rebuild it. I have never rebuilt a fuel pump before so these are uncharted waters for me. I took off the 4 screws on the top of the pump and I see these two diaphragms (not sure if that's what they are) on the top of the pump. In my kit I have two new diaphragms. Do I need to replace these and if so, how do I get the old ones out?
k321 fuel pump rebuild - 75 PK 1614
Posted January 31, 2017 - 06:17 PM
- boyscout862 said thank you
Posted January 31, 2017 - 08:18 PM
Posted January 31, 2017 - 09:44 PM
those are the inlet and outlet check valves and it is a good idea to replace them. They should simply pull out, you may need to pry them with a small screwdriver or something similar, and the new ones are just pushed in. Make sure you install them the same way they came out, otherwise fuel won't flow.
- Alc said thank you
Posted January 31, 2017 - 11:13 PM