Glad to have found this guide as i plan to give my car a full service as soon as it gets a bit warmer
Hard to say in theory, but I would imagine a lot. I didn't seem to get much air into the lines during my replacement, and mine still needed dozens of pumps. When the bulb starts hardening, the fuel is there. Best to have fuel in the tank when doing this job.if you've pretty much drained your tank empty, to the point of getting air in the fuel line, how much pumping of the priming bulb do you think would be required to get fuel through from the tank?