70 LS1

iTrader: (1)

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

WILWAXU

iTrader: (6)

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>

70 LS1

iTrader: (1)

Thanks, but no markings.

Mach Go

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

70 LS1

iTrader: (1)

No screen here, this is an inline pump if that helps.

y2khawk

iTrader: (5)

Outlet should be the end with the electrical connections.

Mach Go

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