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I have stock fuel pump on a '74 that has 3 lines connected. There 2 lines running from the gas tank, one is larger and the other smaller. Are these both feeding the pump or is the small one a return line possibly? Thanks!
I have stock fuel pump on a '74 that has 3 lines connected. There 2 lines running from the gas tank, one is larger and the other smaller. Are these both feeding the pump or is the small one a return line possibly? Thanks!
If you are planning to replace the rubber hoses from the frame to the pump, be sure you get the correct molded hose. Many will simply replace an old hose with standard rubber fuel hose and find that try as they might to route them, most will kink and restrict fuel flow.
GM Part Number: 3994298
Molded “S” hose kit, fuel pump inlet from long line to pump (w/long fuel pump) w/clamps 6154.
Years 1970 - 1981 photo courtesy of Paragon Corvette Reproductions https://www.paragoncorvette.com/p-35...-hose-kit.aspx
The return, vapor line can use standard 1/4" fuel hose however. GM Part Number: 3867164
Vapor return hose kit, 1/4" hose w/clamps 9744. 1968-81 All, exc. 1968-69 3x2, L-88 and 1973-74 w/454.
Years 1968 - 1981 photo courtesy of Paragon Corvette Reproductions https://www.paragoncorvette.com/p-35...-hose-kit.aspx
If you are planning to replace the rubber hoses from the frame to the pump, be sure you get the correct molded hose. Many will simply replace an old hose with standard rubber fuel hose and find that try as they might to route them, most will kink and restrict fuel flow.
GM Part Number: 3994298
Molded “S” hose kit, fuel pump inlet from long line to pump (w/long fuel pump) w/clamps 6154.
Years 1970 - 1981 photo courtesy of Paragon Corvette Reproductions https://www.paragoncorvette.com/p-35...-hose-kit.aspx
The return, vapor line can use standard 1/4" fuel hose however. GM Part Number: 3867164
Vapor return hose kit, 1/4" hose w/clamps 9744. 1968-81 All, exc. 1968-69 3x2, L-88 and 1973-74 w/454.
Years 1968 - 1981 photo courtesy of Paragon Corvette Reproductions https://www.paragoncorvette.com/p-35...-hose-kit.aspx
Good luck... GUSTO
Yes a molded one is what I need and will order now on ebay. This is a smelly job I'm finding out Thanks for the tip.
05-03-2016, 02:10 PM
Fuel pump connection lines
Thanks for the tip.