Fuel pump (suction)
 

I currently have a Mallory fuel pump that apparently is a pusher not a puller so I need to prime it to the the fuel to pump. My question is does anyone have any idea on a good pump that will pull the fuel up to it. Problem I have is it's hard to get mounted under the tank so I run out of fuel when the tank level is below the pump level which happens to be about 1/3 to 1/2 tank. Thanks for any help. It's a carb 502. 415 hp.

Only pump that will pull uphill with any consistency are the old school diaphragm or Weldon Electric.

Suggest checking the antisiphon valve on the tank. Its the barbed fitting that the rubber fuel line connects to.


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Yup. ^^^^^

Also, the following based iff my old crusty hardening brain so please double check.....your Mallory could have a gerator type pump which is more efficient on the output side, but less effecient at ‘pulling/lifting fuel up lines’ then the vane type. Vane type is mire noisy then gerators.

As a fyi, many marine companies on carb’d sbc’s and liw hp 454’s that don’t have block provisions for mechanical pumps, use the Marine Carter Electric pumps. They are vane type, again, if I remember correctly.

Hope this helps, and please do a quick study in case my memory mixed up.

One of the Holley pumps will lift 18", I just forgot if it was the red, blue or black.

Weldon pumps advertise that they can pull as well as pump, unlike most electric pumps. I used a Weldon mounted on the block and it pumps like a beast.

I run mallory 140's. This is what I did. I mount the pumps as low as I can in the bilge. I then run a loop in the delivery hose that will keep fuel in the line to allow the pump to prime and create a vacuum.
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I did that's been replaced with a regular barbed fitting clear through no valve

So you're saying you removed the anti-siphon valve and have issues with it siphoning?

yes correct