Faulty rigged

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jonbgood

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Nov 21, 2024
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Location
east bay area , California
First Name
Johnny
Truck Year
1977
Truck Model
c20
Engine Size
454
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Just picked up this 77 c25. It smells of heavy gas fumes. I got under started looking around. Apparently they removed all the cross over hard lines to dual tanks and ran all rubber hoses. The original switch valve has been removed and replaced with two small pumps for sending and return. They also cut the plug for original switch and must of removed wire because I don’t even see 5wires to reinstall plug if i wanted to. Some of the hoses leak a bit out of ends where meet hard lines running to front. Please I need advice on how should I move forward. Should I remove tanks and only put one back or what would you do to get it properly set up?
Thanks for all advice
 

waterpirate

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delaware
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Eric
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1987
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v10
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5.7 tbi
Welcome!
Stop, breathe, think.
The mess you have needs to be fixed, safety issue. The question is what are your plans for the truck? If a working driver, make it safe and go to work. If you are planning a restoration, then restore to original.
Eric
 

Strick

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Dunn, NC
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Harold
Truck Year
1979
Truck Model
C20 Crew
Engine Size
350
Dad's ole C20 Crew has a selector valve with one wire like the one in the pic. It appears that your truck has two installed for some odd reason.
 

bucket

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Engine Size
350-454
Dad's ole C20 Crew has a selector valve with one wire like the one in the pic. It appears that your truck has two installed for some odd reason.

Yeah, it looks like the truck had a 6-port valve and they couldn't find one, so they used a pair of 3-port valves. I don't see why that wouldn't work.

However, I do see a glass fuel filter that absolutely has to go. If it's not leaking currently, it will be.
 

jonbgood

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Nov 21, 2024
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Location
east bay area , California
First Name
Johnny
Truck Year
1977
Truck Model
c20
Engine Size
454
Welcome!
Stop, breathe, think.
The mess you have needs to be fixed, safety issue. The question is what are your plans for the truck? If a working driver, make it safe and go to work. If you are planning a restoration, then restore to original.
Eric
I’m going to use it as a work and daily short distance driver.
 

jonbgood

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Nov 21, 2024
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Location
east bay area , California
First Name
Johnny
Truck Year
1977
Truck Model
c20
Engine Size
454
Yeah, it looks like the truck had a 6-port valve and they couldn't find one, so they used a pair of 3-port valves. I don't see why that wouldn't work.

However, I do see a glass fuel filter that absolutely has to go. If it's not leaking currently, it will be.
Yes they put two fuel pumps instead of original valve. Some of the rubber hoses were leaking where they clamped onto hard lines. So I removed it all, time to get it all safely buttoned up
 

jonbgood

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Location
east bay area , California
First Name
Johnny
Truck Year
1977
Truck Model
c20
Engine Size
454
Update:
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I have removed it all. This is what they had going on connecting across both tanks. Also removed both fuel tanks because I have it parked in garage with water heater and was concerned about all the fumes the space was filling up with. So I figured I remove it all and inspect everything till I can get it all properly put back together. Also removed the Carburetor (one of those Chinese quadrajets) it wreaked of fuel sitting in it. The carb has no numbers or identification, I might switch to something else. Any suggestions?
 

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