Need help with fuel line to carburetor

[MarcDeSoto]

I'm hooking up my fuel line right now.  I don't have anything to go by and the shop manual is no help.  I assume the flexible fuel line goes from the frame to the right side of the fuel pump?  Then on the left side of the fuel pump, a metal fuel line goes from the fuel pump to the fuel bowl on the carburetor?  Where would the fuel filter go?  There's no room to put it before the fuel pump as I don't think you are supposed to cut the rubber fuel line in half.  Would it go half way between the fuel line from the outlet of the pump to the carburetor?  also, my flexible fuel line is NOS, meaning it's old from the 40s.  Is it too old to use?  My fuel pump is the kind with the glass bowl.  does that mean it already has a built in fuel filter?  Thanks, Marc.

[Merle Coggins]

The glass bowl on the pump is a sediment bowl. There should be a screen at the top. It is designed to collect any big pieces of debris to keep them out of the pump. My truck, like many others, have a filter at the inlet to the carburetor. 

[Dan Hiebert]

Yes, that flexible line goes from the frame to the right side as you look into the engine bay, there may be an indicator on the pump where the "in" line goes.  I wouldn't trust an NOS flexible line that old, but you can always try it to see if it leaks.  I installed new flexible line that only lasted a year, then replaced it with a modern piece of fuel line.  Doesn't look original, but it's worked for a really long time.

 

Theoretically, that glass fuel bowl on the pump has a filter, but it only cleans big stuff that comes from the tank into the pump.  I added an inline filter to the hard line from the pump to the carb, about 1/2 way, because I was still getting crud in the carb.  I just used a generic metal case filter.  Vintage looking glass bowl fuel filters that attach to the carb are available.  They look pretty good, and I'm planning to go that route this year.   

[MarcDeSoto]

Yes, I have a really old in the box NOS glass fuel filter.  I didn't know that they attach directly to the carburetor.  I should probably order a new flex fuel line because my NOS line says it's for Chrysler products 1942-1947.  that would indicate that it was made in 1947!  That would be some old rubber!  

[Sniper]

Old rubber isn't too happy with ethanol. 

 

The filter is in the tank as part of the pickup, it uses an Oilite filter.  At least in my Plymouth, the specifications listing in the fuel section of your service manual should tall you.  There are no provisions in the stock setup for any other filter.  So you will have to mod your hard line from the pump to the carb to retrofit one.

[MarcDeSoto]

When I had a radiator shop redo my gas tank, they cut a section out of the top of it and cut out the oilite fuel filter.  It had rusted out, and was really wasted!  I posted a pic of it about a year ago here.  I guess many guys who just coat the inside of  their tanks without looking at their oilite filter don't know how time has destroyed it.  

[Young Ed]

Typically if you are going to attach a filter to the carb you swap from a male/female needle valve to a male/male one. The filter goes directly onto the needle valve and then the line goes into the filter.