I have a 1965 turbo scout 80 152ci. It has 32’000 miles on it. The original fuel pump quit working, so we put an aftermarket pump in it. It’s been running great for 2 years. Then quit pumping fuel. We replaced it with a brand new pump, and it worked for three days. Is there a possibility that the lobe that controls the fuel pump arm could be broken? Not sure what else to look into? Thanks for any advice!