The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Need help figuring out my fuel lines on my 1972 suburban

Mikmark · 11-15-2015, 07:59 AM

My 72 has two lines that run to the fuel tank. One brings fuel from the tank and the other returns fuel back to the tank. I think this was to help keep the fuel cooler and avoid vapor lock. The original fuel level guage that fits in the gas tank had a port for the return line. The replacement ones that I have looked at do not have this extra port. I just ran the return line to one of the vent ports. Works OK so far.

11-15-2015, 07:59 AM	#19
Mikmark Registered User Join Date: Dec 2010 Location: Richardson, TX Posts: 11	Re: Need help figuring out my fuel lines on my 1972 suburban My 72 has two lines that run to the fuel tank. One brings fuel from the tank and the other returns fuel back to the tank. I think this was to help keep the fuel cooler and avoid vapor lock. The original fuel level guage that fits in the gas tank had a port for the return line. The replacement ones that I have looked at do not have this extra port. I just ran the return line to one of the vent ports. Works OK so far. __________________ 1972 C10 Suburban 1959 Austin Healey Sprite 1977 Datsun 280Z