Fuel return line
#1
Fuel return line
Hello.
I am in the middle of a frame off restoration on my 1970 Cutlass convertible with a 350. It originally had one 3/8 fuel line from the sending unit to the fuel pump. Because I am replacing the tank, sending unit, and fuel pump, does it make sense to add a return line? I am in a position now that I can easily do it but am not sure if it is necessary since this car never had one. Also, how many vents on the fuel tank do I need? All of the vents on the original tank were capped. Any advice would be appreciated.
Thank you
Kevin
I am in the middle of a frame off restoration on my 1970 Cutlass convertible with a 350. It originally had one 3/8 fuel line from the sending unit to the fuel pump. Because I am replacing the tank, sending unit, and fuel pump, does it make sense to add a return line? I am in a position now that I can easily do it but am not sure if it is necessary since this car never had one. Also, how many vents on the fuel tank do I need? All of the vents on the original tank were capped. Any advice would be appreciated.
Thank you
Kevin
#2
Hello.
I am in the middle of a frame off restoration on my 1970 Cutlass convertible with a 350. It originally had one 3/8 fuel line from the sending unit to the fuel pump. Because I am replacing the tank, sending unit, and fuel pump, does it make sense to add a return line? I am in a position now that I can easily do it but am not sure if it is necessary since this car never had one. Also, how many vents on the fuel tank do I need? All of the vents on the original tank were capped. Any advice would be appreciated.
Thank you
Kevin
I am in the middle of a frame off restoration on my 1970 Cutlass convertible with a 350. It originally had one 3/8 fuel line from the sending unit to the fuel pump. Because I am replacing the tank, sending unit, and fuel pump, does it make sense to add a return line? I am in a position now that I can easily do it but am not sure if it is necessary since this car never had one. Also, how many vents on the fuel tank do I need? All of the vents on the original tank were capped. Any advice would be appreciated.
Thank you
Kevin
If you decide further down the road that you need a return line, you can splice a rubber hose in towards the rear frame.
#3
You are correct, it is a non air conditioned car. Preventing vapor lock did cross my mind but I am mainly asking because I have the frame out of it right now. If there is a good reason to add it, I want to do it before I set the car back on the frame. Thanks for responding.
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August 11th, 2020 06:46 AM