At what now seems like a million years ago, I saw my father put a small gas(oline) tank on the hood of a car with a hose going down to the carb fuel inlet. I'm thinking it was something like a 50s Nash. That was just to see how well the engine ran and to drive it from a back lot up to his shop. The tank looked like it may have come off an old lawnmower or garden tiller. If the carb needs pressure at it's inlet beyond what gravity would provide, then this is a no go.
What kind of vehicle is it? Can you get it to move by just cranking the starter without pressing in on the clutch? I briefly owned an old Jeep CJ-7 and on more than a few occasions I just used the starter to hostle it around the driveway when I needed to get the other car out.
I need to move a vehicle, perhaps let it propel itself on to a tow away trailer. It runs, if you put gas in the carb throat. Fuel delivery issue.
I put fuel in the tank. No go.
I need a quick fix and do not want to crawl under the truck to repair it. With my luck, a fuel pump in the tank.
I price electric fuel pumps. Damn, am I that old ? Now they are $50.00+ on the cheap end.
I own a tow chain and a come-a-long.
Like MJ said... if it's a carbed vehicle or a low-PSI fuel injected throttle body system, you can simply buy an external tank from Summit (or even Amazon), and wire up a "pusher pump." They sell them in various PSIs... from 2-4-6-8-10, etc... and you just wire it to hot, and let it go.
That's "basically" how most VW buses are. The "pickup," if you can even call it that, in a VW Bus fuel tank, is basically just a sock that's dipped into a tank, with a line that runs up and out, and then it connects to the mechanical pump, which almost everyone replaces with a 12v pusher pump that they wire in-line with the ignition coil. Super-easy.
If you watch Vice Grip Garage on YouTube, this is what he does on half the cars he gets running (that have been sitting for decades).
Really, if you wanted to do it ghetto, you could just wire a pusher pump, and have the feed line just be a long flexible fuel line that feeds into a 5-gallon Jimmy can that you buy from Harbor Freight for $15. Pusher pumps are like $20 bucks.
Originally posted by css9450: What kind of vehicle is it? Can you get it to move by just cranking the starter without pressing in on the clutch? I briefly owned an old Jeep CJ-7 and on more than a few occasions I just used the starter to hostle it around the driveway when I needed to get the other car out.
Thank you. It's a ??1989 plus, maybe a 1994??? Nissan automatic. That Hail Mary will not work. I have used it before, as well as using the starter to start my 7.3 turbo diesel pick up when I had a broken clutch fork. Again, thank you.
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Originally posted by maryjane: At what now seems like a million years ago, I saw my father put a small gas(oline) tank on the hood of a car with a hose going down to the carb fuel inlet. I'm thinking it was something like a 50s Nash. That was just to see how well the engine ran and to drive it from a back lot up to his shop. The tank looked like it may have come off an old lawnmower or garden tiller. If the carb needs pressure at it's inlet beyond what gravity would provide, then this is a no go.
I thought all old school carberators need at least 8psi of pressure to fill the carb bowl, so the carb's accelerator will work and keep working. The carb's float valve halting the flow when there was enough. Thanks for the idea. Perhaps I can use a boat's fuel primer bulb to get done what I need to do. It's not mine. If it was, I would fix it.
Thanks Todd. I know pumps. They need suction and discharge which the pump creates. Some pumps are designed to push, some to suck. Gravity feed could work, does work, for certain purposes.
That Amazon pump is exactly what I was looking for. Thank you. I don't remember where I searched. I figured they were all expensive because most modern fuel systems need 50psi or so.
Thanks Todd. I know pumps. They need suction and discharge which the pump creates. Some pumps are designed to push, some to suck. Gravity feed could work, does work, for certain purposes.
That Amazon pump is exactly what I was looking for. Thank you. I don't remember where I searched. I figured they were all expensive because most modern fuel systems need 50psi or so.
I thought all old school carberators need at least 8psi of pressure to fill the carb bowl, so the carb's accelerator will work and keep working.
No, but depends on your idea of 'old school'.
All the carb ever saw or needed was whatever was in the carb's fuel bowl. The only reason for the pump was because the factory gas tank sat below the level of the engine. (I've owned lots of farm equipment where the gasoline fuel tank was above the engine and no fuel pump was present or required.) For acceleration in automobiles, the initial surge of power came from a little linkage operated plunger type pump inside the carb. Squirted a single pulse of fuel into the carb throat but venturi effect as the needle(s) was/were were lifted and butterfly opened took over and did the acceleration after that.
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