New Fuel Tank Ready, Should I Add an Electric Pump?

Jerry Berry · 2025-12-09T03:54:42Z

I received the last part needed to get the new tank installed in my 41 Chevy Coupe. As I was putting it together, filler tube, sending unit and fuel line adapters, I thought of something that might be worth doing while there's room under there before installing? In a parts cache I received with my 41 sedan, I got 3 or 4 six volt fuel pumps. One of them was a new old stock Mallory, I think. I've read quite a bit of the benefits and issues most comments were positive. I would only use one as a primer to alleviate the need to crank and crank to get it running. It would be used with a manual switch. What I don't know is whether all or any of them will flow fuel through them using only the mechanical pump once the switch for power is turned off. I also bought a new in-line 6 volt pump a while back and could use it if I find the mounting method more convenient. Any thoughts...suggestions?

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Tiny

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January 8, 2026 7:19 am

@nicholas-gurin It was a clicker type of pump and had it's own filter. Also 99+% of fuel goes through the main filter because the electric is only a priming pump. After filling the float bowl, all of the fuel bypasses it. When I replaced the clicker pump with a rotary vane pump without a filter, I didn't add one for that reason (only a tiny bit of gas goes through the electric pump).

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