Electrical fuel pump - Impala Tech
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post #1 of 11 (permalink) Old 04-02-2020, 07:47 PM Thread Starter
 
 
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Electrical fuel pump

1964 impala not pumping gas. It has an electrical fuel pump. I disconnected the fuel pump thatís placed near the gas tank and not fuel was coming out. Now do I check my gas tank? Also I added some gasoline to the carburetor it only cranks but it would start with that added gasoline. Could I have 2 problems? Gas tank and carburetor?


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post #2 of 11 (permalink) Old 04-02-2020, 09:05 PM
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No engine will run without fuel.

Do you have power to the pump?

Is the pump properly grounded. You can have the battery sitting in the trunk next to the pump but if it doesn't have a ground then it won't work.

Is there gas in the tank? How much? Are you using the stock fuel inlet and sock to pick up the fuel, or are you picking it up from a sump in the tank?

I would borrow another fuel pump to see if the fuel lines are delivering fuel to the pump as a first test.

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post #3 of 11 (permalink) Old 04-02-2020, 09:22 PM Thread Starter
 
 
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Ground is good and I also bought a new one and same no gas but the pump does work because of the noise it makes when I flip the switch. The gas tank is half full and itís running from the inlet and sock.


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post #4 of 11 (permalink) Old 04-02-2020, 11:57 PM
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At this point my best guess is a clog in the fuel line as a new pump doesn't work any better than the old one. Those cloth socks collapse when they clog. Bad news is the only thing to clog the pump is scale (rust flakes) which implies you may be looking at a new tank or a lot of work to repair this one (clean it then seal it with epoxy paint), but either way you are going to have to drop the tank. Recommend a transmission jack or a transmission jack attachment stuck on your floor jack.

https://www.summitracing.com/parts/w...SABEgK2kPD_BwE

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post #5 of 11 (permalink) Old 04-03-2020, 12:13 PM
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With out gas in it, the tank is fairly easy to drop. You may want to buy a new sender and rubber fill inlet. The rubber on the fill inlet gets dry and crusty and splits with age.
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1964 Impala 4 door sedan

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post #6 of 11 (permalink) Old 04-04-2020, 07:46 AM
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Has the car ever ran with the electric fuel pump? Just trying to ask the obvious here. Not all electric fuel pumps can be connected to a standard tank outlet. Some require a sump type pickup where the outlet is at the bottom of the tank which allows gravity to get the fuel to the pump initially.
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post #7 of 11 (permalink) Old 04-04-2020, 10:16 AM Thread Starter
 
 
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Yeah that car had a electric fuel pump before. But for some reason it was placed in the front of the car And working properly. I checked the fuel tank and was clean.. now itís pumping gas again after checking all the fuel lines. Replaced the the cap and coil because I found out there was no spark and still doesnít start and still no spark.


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post #8 of 11 (permalink) Old 04-08-2020, 07:03 PM
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While your working on the fuel line it’s probably a good tome to replace the two sections of rubber fuel line that connect the long fuel line to the short tank line and the line between the tank and that shorter piece. If by chance your pump was trying to pull fuel from the tank and either one of those had or have a hole in them then the pump won’t be able to pull fuel with an air leak in the line.
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post #9 of 11 (permalink) Old 04-08-2020, 11:09 PM
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Just out of curiosity, do you know what electric pump you have? And is is quiet? I have been wanting to install one to avoid all the long cranking to fill the carb bowl after the car sits for a week.

1964 Impala 4 door sedan

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post #10 of 11 (permalink) Old 04-08-2020, 11:15 PM Thread Starter
 
 
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Itís a mister gasket fuel pump.. it is noisy


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post #11 of 11 (permalink) Old 04-08-2020, 11:23 PM
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Thanks. I remember looking into this many years ago. I will have to go dig again, as I don't recall anything now ;D

1964 Impala 4 door sedan

My Bloggy Thing: http://www.impalas.net/forums/blog.php?u=2285
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