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Help with stupid fuel pump

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Old Mar 29, 2002 | 06:58 PM
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Default Help with stupid fuel pump

Ok, I am feeling really stupid now. I just picked up a Walbro 392 inline pump. Which end is the inlet and which is the outlet?
<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
Thanks
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Old Mar 30, 2002 | 12:00 AM
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Default Re: Help with stupid fuel pump

It's been a few years.. but they use to be marked.. small arrow on the npt fitting and aeromotive had it on the body of the pump.

<small>[ March 30, 2002, 12:00 AM: Message edited by: WILWAXU ]</small>
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Old Mar 30, 2002 | 12:08 AM
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Default Re: Help with stupid fuel pump

Thanks, but no markings.
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Old Mar 31, 2002 | 05:54 PM
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Default Re: Help with stupid fuel pump

Jeff....this may not be accurate, but shouldn't the inlet of the pump have some sort of screen to keep debris out of it??? If one end has a screen and the other doesn't then that may be your answer. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

jason
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Old Mar 31, 2002 | 06:08 PM
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Default Re: Help with stupid fuel pump

No screen here, this is an inline pump if that helps.
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Old Mar 31, 2002 | 06:11 PM
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Default Re: Help with stupid fuel pump

Outlet should be the end with the electrical connections.
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Old Mar 31, 2002 | 06:15 PM
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Default Re: Help with stupid fuel pump

Jeff....I just had a revelation....put some fuel line hose on both ends....submerge both lines in some gas then apply 12 volts...you will then be able to tell which is inlet and outlet <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />

Why didn't I think of that before??!! Duh

Jason
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