1950s Fuel Pumps

[Big Fins]

I've never had issues between leaded and non-leaded fuel either. The valves used the lead as a cushion, but when the 472 was introduced, it had hardened valve seats and lead became a non-issue in the fuels. Even though the using od ethanol has been around since the 1930's, it is detrimental to everything it touches. 

[Coral58]

Thanks for all the responses. I use 93 grade gas,with seafoam stabilizer for the winter.No rebuild places reasonably close, ordering from CarQuest and Napa getting off shore rebuilds.Recently ordered 2 Carter units from US Rock Auto,hoping to get US rebuilds,Carter box read made in China. Many good things come from there but not sure about these.
 I do have an electric backup pump for primeing and in case of vapor lock. The car runs well on that no problem but I prefer the mechanical one to be working.

Ivan

[TJ Hopland]

Are the pumps you have been getting the style with all the screws around the body?   Or with a crimped band.   If they are the screw type you can take them apart and inspect and possibly repair the valves.

[Clewisiii]

I have been able to collect two original cores for my 61. I will eventually ship them to AG Rebuilders to have as spares.

My original pump was done by AG rebuilders for about $140 several years ago.