Electric fuel pump in a 77 Jimmy

[Joel Wilson]

Long story short. I made it to Kentucky but the Jimmy had to be transported. They jacked up my steering column even worse, busted a leaf spring and I still have a fuel problem. So what I need to know is should I just replace the fuel tank and sending unit, or just clean fuel tank and replace sending unit? Then how and where do I add an electric fuel pump and what fittings do I need? My medical condition has changed drastically after my 2nd neck surgery so that does play in. Brand new column is on the way. Leaf spring has been fixed at least. Thanks in advance.
Joel in South Central Kentucky

 

[cheavyk10]

Good lawd how did the transport company do all that damage? I hope they're going to pay for it.
Electric fuel pumps, particularly the clicky clack kind, need to be mounted right by the fuel tank and as low as you can get them.

 

[Chickntrk]

If you're replacing the tank Id use one from a TBI Blazer and use a TBI in tank pump, they last much longer, and are much quieter. Then just install a regulator to get it to carb pressure.

If this is still carb why do yo think you need an electric pump?

 

[Wes Harden]

Holley red label pump.
3/8 hose nipples.
Mount near the tank bottom.
Check diff clearance, sub has plenty of room

I use a Holley pressure reg under hood with a return to tank, using existing 1/4 return line.
Mine has been like this since 2020 no problems.

Don't waste time or money on the Edlebrock 5/16 $50ish pump. One I tried only made it 6 months.

All that said, I will be converting to an EFI tank a TBI pump with same regulator.

 

[Joel Wilson]

Cold starts for one. And changing out a fuel pump on a jimmy with a 400 was not fun. I blanked off fuel pump, mounted an electric Holley, but it was not in an ideal spot. I made it further down the road before she died again. I was going up a grade, fully loaded on the hottest day of the year. So I am going to at the very least replace sending unit assy and replace all rubber hoses for the fuel lines and returns. And when it died each time, it wasn't flooded, it was being starved. And not vapor locked from engine heat

 

[Chickntrk]

Pump could have got hot from not being submerged in fuel.

 

[Joel Wilson]

Pump could have got hot from not being submerged in fuel.

It was an external holley

 

[Chickntrk]

Thats what I meant, when I did BB in '22 the external pump guys were having a lot of trouble because of the heat

 

[Wes Harden]

I had to lower my first pump install. After stopping on a 10% grade to help another motorist, my truck wouldn't restart. Lowering the pump from the middle of the front side if tank, to the lower quater of tank allowed the engine to start and continue.

If you look at my pic, you see the actual pump section is even with bottom of tank.
Never had an issue with anlges at that spot. Has functioned at 110° F + no vapor lock or delivery failures