Fuel pump failed

[Malcolm Towrie]

Hi, I'm working on a restored carrier and I found that the fuel pump, despite looking like new, had quit. It wouldn't pull enough vacuum to get the fuel up from the tank.

I pulled it off and confirmed there was very little vacuum being generated at the inlet port.

I opened it up and found the diaphragm has crazy-paving cracking all over the wet side. I'm thinking the dreaded ethanol problem, though we usually use a Shell gasoline that doesn't have any ethanol. Maybe it was from before we got it.

Does anyone have recommendations for a good, ethanol-resistant replacement? I'm not a fan of electric pumps but is the conversion popular?

(By the way, I checked I was getting 0.2" stroke on the pump rod, and the pump lever height was correct to get the the full 0.2" stroke on the pump lever.)

Malcolm