filter on electric fuel pump

dick lyons

dick lyons

Senior Member
hi guys. i have a 48 coupe that has a pump mounted on the frame rail mid way from tank to motor. will i need to drain the tank to change the filter? thanks for any and all replys.
 
Assuming the pump and filter are mounted with a section of rubber hose (like mine is), just pinch it off on the tank side of the filter. I use a small pair of vice grip pliers.
 
If you can, solder a shut off valve into your gas tank line. Drain you tank and remove the fuel metal line so you can do your soldering on your workbench - not under your car - to prevent an explosion. The valve in the photo is a radiator drain petcock. Fuel line is 1/4 in. dia.
 

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19fordy, i guess i could rig up a shutoff valve right where the fuel line comes out of the tank after draining and disconnecting the line insead of your idia ??
 
dick lyons said:
19fordy, i guess i could rig up a shutoff valve right where the fuel line comes out of the tank after draining and disconnecting the line insead of your idia ??
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Yes, you could, but it might be more difficult to reach and shut off. plus, I don't like to "mess with" the threads where fuel line comes out of tank.
 
It probably depends on how much fuel is in the tank and how high up on the frame rail your filter is ---at less than 1/4 tank the level is probaly much lower than the filter
 
BTW ,the elec. pump is better off as close to the tank as possible, not midway in the line.Use fuel injection hose will hold up longer than run of the mill fuel hose. ken ct.
 
I agree with Ken. A pump mounted on TOP of the crossmember is out of sight, above and as close to the tank as it gets. Filter mounted there is accessible from under the car. Any shut-off valve in the system can introduce an air leak, exactly what you don't want.
 
good info from everyone. assuming i have a fairly clean tank, how many miles should i expect to get from a new filter, i got this car last year and have done the usual repairs. wireing, mufflers , all lubes, replaced front spring, shoes,cyls, on and on. drove it maybe 75 miles after getting it inspected and tagged, not much fun yet. e bay, site unseen! never again. thanks for your help. i am really glad i found this source of great info and help fome those who have 'been there done that".
 
dick lyons said:
good info from everyone. assuming i have a fairly clean tank, how many miles should i expect to get from a new filter.
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I put a new tank and filter in about 20,000 miles ago and still have good fuel flow. If your tank is new or really clean such that it will not produce any rust there is no reason you can't go many thousands of miles without needing to replace the filter. Think about modern cars. How often does the fuel filter have to be replaced in them? None of mine ever have and I've driven several over 200,000 miles without replacing a fuel filter. The key is to have a spotlessly clean tank that will not rust.

P.S. The greatest source of rust in a gas tank is on the "ceiling" of it where moisture condenses. That's where my old one was rusted through hundreds of pin holes (after sitting for 31 years). That is easily prevented by filling the tank to the top regularly and driving it regularly. That condensation mostly happens when the tank sits less than full for extended periods of time.
 
old henry, thaks for the reply. someone who owned the coupe before me installed the pump. it looks fairly new. the car runs good with no stumbling.or missing. so i guess its clean (the filter) but i thought i would have gas running all over if i just took it out. so vicegrips or a shutoff valve or relocateing the pump is the answer. i do keep the tank as full as i can.and add stabil. i have other issues with the front suspension,(pos. camber) but thats for onother thread. i dont want to make a p.i.t.a. of myself, so ill save that one for later. thanks again, dick.
 
Dick, a fuel filter can do ya for years or days. Suck up the dregs from the bottom of a gas station tank just before they get a fuel delivery, and you can get junk. I once had no choice on a trip, had to get gas at a single pump chicken coop station, the guy even had to cut off the rusty padlock from the pump handle! I don't know how, but my filter actually lasted me the whole trip till I got home and then pulled up some junk!
 
ford38v8 said:
I agree with Ken. A pump mounted on TOP of the crossmember is out of sight, above and as close to the tank as it gets. Filter mounted there is accessible from under the car. Any shut-off valve in the system can introduce an air leak, exactly what you don't want.
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To avoid the air leak possibility I soldered the shut-off valve to the gas line.
 
Good news! You don't have to drain the tank (in any customary way) nor pinch off your rubber hose nor install a valve ahead of the filter to change the filter on your electric pump.

I just had to cut into my fuel line to install a pressure regulator after my electric pump. I have no shut off valve between the tank and the pump and actually bought one to install after I got the gas out of the line. But, I didn't really want to just loosen one of the connections on the pump and try to get the gas to drain into some kind of a pan under there. Then I thought of this idea: I disconnected the fuel line from the carburetor, stuck a rubber hose on the end, ran it into my gas can, and turned on the electric pump! It wasn't long before all of the gas was pumped out of the tank and I was able to install my pressure regulator without a drop of gas dripping on me under there. (Very different from when I installed the electric pump. I had gas everywhere.) And, I didn't go to the effort to install the shut off valve that would have been hard to install between the tank and pump anyway since I have the pump so close to the tank. Now I can rest easy knowing there is a way to get the gas out of the tank whenever I need to to change the filter. Of course, you have to have less than 5 gallons of gas in the tank to fit it all in a 5 gallon can. (I actually had a little more than that and put some in a second can.)
 
Henry, water (or gas) does not flow uphill. All lines, filters, pumps, everything is higher than the tank, so unless you work with the rear jacked way up, common sense dictates that you keep a disconnected line from hanging down low. Yes, you may get a tiny dribble from the front, but not from a half empty tank.
 
Had a leak at the tank on a friend's 40 PU. Parked it with the front slightly up hill, took the line loose from the output side of the pump, turned on the pump and pumped it dry. sealed the threads at the tank, hooked the line up, filled the tank, didn't spill a drop.:D
 
ford38v8 said:
Henry, water (or gas) does not flow uphill. All lines, filters, pumps, everything is higher than the tank, so unless you work with the rear jacked way up, common sense dictates that you keep a disconnected line from hanging down low. Yes, you may get a tiny dribble from the front, but not from a half empty tank.
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I'm not sure what you're talking about. Although liquids do not flow by gravity up hill, thay can all be pumped up hill by a pump which is what I did. Just like 41LjH did. :cool:
 
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