filter before the pump

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Nov 11, 2009 | 01:34 PM

old76er

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Joined: Aug 2008

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filter before the pump

can you put a fuel filter before the pump, I was told by an older mechanic that you can't put a filter before the pump because if the filter gets clogged the pump will crush the filter and the fuel will run out. has anybody heard of this, I wanted to put a filter on before the pump to catch anything before it gets there.

Nov 11, 2009 | 01:48 PM

CrazyAirman

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Joined: Jun 2003

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From: Edgewood, Wa

I use a frame mounted cartridge type filter from Summit that's mounted back by the tank, before the pump, for a couple thousand miles now with no issues. Prior to that, I ran a cheap Fram 3/8 in & out steel filter for 15+ years installed on the frame. I just changed the filter once or twice a year.

Nov 11, 2009 | 01:55 PM

johnboy427

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Joined: Jan 2005

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From: The Vieux Ford, Kansas

There is no way a mechanical pump will pull hard enough to crush a filter, but they do push better than they pull so it is better to put the filter after the pump. Maybe some of the high pressure EFI pumps can I don't know but not the mechanical ones.
-Johnboy

Nov 11, 2009 | 02:52 PM

freakboy

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Joined: Oct 2009

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Stock on these trucks the filter is before the pump so it works origonaly it should work nomatter what

Nov 11, 2009 | 08:20 PM

scrapyardking

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From: Western, PA

just get a fuel pump that has the filter allready mounted on the botom, that what i allways run on mine.

Nov 11, 2009 | 08:39 PM

tomcasino

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Joined: Sep 2005

Posts: 359

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From: Saint Paul, MN

My '75 highboy had a fuel filter before and after the pump and worked fine for years. Holley recommends you use a fuel filter before their electric fuel pumps to protect the pump. Summitracing.com sells a good Fram canister style fuel filter for around $40.00. Part Number: FRM-HPG1

Nov 11, 2009 | 08:54 PM

projectdagger

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Joined: Oct 2006

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From: Fort Bragg

But when you use the a fuel filter mounted before the fuel pump. Did you have any problems with it bending, almost melting in a way. I been having that problem since i bought my 79