Fuel Filter location

17ram2500

Bigger Hammer
Dec 26, 2023
61
NC
First Name
Evan
Willys Model
  1. Pickup
Willys Year:
  1. 1962
Hey Folks,
Want to add a fuel filter. Anyone put it where the "flex line" is between the frame and the pump? Seems like a logical choice to me; just a little in-line filter to catch stuff. Found quite a bit of junk the carb today, so would like to prevent that.

Thanks,
 
yeah, just trying to keep it original... and that line is all steel from the fuel pump to the carb.
 
WA7OPY said:
works better on the output side fuel pump to carb...Phil
Click to expand...
X2 I was told by a very experienced mechanic that a filter should not be placed on the suction side of the system as the fuel pumps do not "pull" especially well. It was too late for me. I had already placed a filter just past the tank. It has worked fine, but he assures me that will not last. (and I have only something like two hours run time on the engine w/ that filter in place.) I am in the process of forming/installing all new lines and will place an inline filter on the pressure side of the pump. True it is not original but, if the vehicle gets any sort of regular use, it could be a worthwhile "deviation." If your fuel line is anything like mine (F-134 in my wagon) there is plenty of room between the pump and carb for an inline. If you wanted to keep more of a "factory" look you could use a filter with inverted flare fittings.
 
yeah, will for now I'll do something cheap and prolly just a rubber line. At some point I'll find one of the glass bowl filters, but until I run a few tanks of fuel through, I want a disposable one that's easy to change and keep a spare with me.

thanks guys
 
What happens if the suspect fuel is unfiltered from tank to pump? Will the pump last? I'm having hiccups somewhere so maybe it is the filter slowing intake because filter is currently between tank and pump... ?
 
Differing opinion; I prefer to filter the whole system and install the filter on the suction side of the pump, just like the factory did in the earliest days. The biggest problem with that is that you cannot have any leaks or it simply won't work, or if the leak is small, won't work well. My wagon had no filter when I first started driving it and the little check valves in the pump got some debris in them, stranding me once.
 
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5JeepsAz said:
I'm having hiccups somewhere so maybe it is the filter slowing intake because filter is currently between tank and pump... ?
Click to expand...
That is possible, of course. Also could be a filter in the pump getting clogged. (My pump is a newer design and there is no filter, just a recessed area to catch sediments.) there is also likely a fine screen on the carb at the fuel inlet. Then of course the pump itself could be getting bad. A test of the amount of fuel delivered in a given time would answer those questions.
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I ran a filter on the suction side of my 226 fuel pump as long as I had it (3 years, 6K miles) and never had a problem except when the filter clogged. Considering all the chunky gunk I saw in the filter, I preferred to have clean fuel going through the entire system.
I use the clear plastic 5/16" disposable type. Just be sure you observe the arrow on the filter for direction of flow.
 
My rule #1: Don't buy gas while the tanker delivers fuel to the station. The flow into the storage tank stirs up all of the crap at the bottom.
My rule #2: I run a simple in-the-line filter between the tank and the pump. The larger particles are captured there. Replace once a year.
My rule #3: I run a Ceramic Filter at the carburetor inlet. It gets cleaned once a year and reinstalled.
My rule #4: I never run Ethanol Gasoline.
 
Here's a good source of information on where ethanol-free gasoline is available: www.pure-gas.org*

Always call the station first to verify that they still offer it.

If the pump dispenses both ethanol-free and corn-spiked gas through the same spigot, clear the hose of the offensive brew before you dispense "the good stuff" into your tank or jerry cans. (And don't use the trash can!)

The high octane racing fuel sold at a few of these stations smells absolutely terrific, and sniffing it will immediately bring back memories of your youth and will instantly make it much easier to pay way too much for it. But don't inhale too much of it, at least until you are safely back at your garage.

My Trident Loves this stuff!!!


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*Credit for first sharing www.pure-gas.org with us goes to Danny / @DFT2112
 
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Scoutpilot said:
My rule #1: Don't buy gas while the tanker delivers fuel to the station. The flow into the storage tank stirs up all of the crap at the bottom.
My rule #2: I run a simple in-the-line filter between the tank and the pump. The larger particles are captured there. Replace once a year.
My rule #3: I run a Ceramic Filter at the carburetor inlet. It gets cleaned once a year and reinstalled.
My rule #4: I never run Ethanol Gasoline.
Click to expand...
Why not run a filter between the tank and the fuel pump? On the cj2a that I drove the most had a filter Before the fuel pump and another before the carb. The filter before the pump caught all of the trash, don’t think I ever had to change the other one. I would suggest installing filters that you can change easy with a minimum of tools.
 
I think there is/was a screen sock on the end of the line in the tank, that can either act as a nice prefilter, or a completely unanticipated mystery source of fuel starvation.
 
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