 fuel line identification |
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| jdlmodelt |
 Dec 28 2012, 05:37 PM
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James D. Lane  Group: Members Posts: 345 Joined: 30-November 12 From: Colorado Member No.: 15,210 Region Association: Southwest Region  |
The PO of my 72 installed new stainless steel fuel lines and the third line is rubber fuel line. How do I tell which one is from the tank to the pump and which one is the retun to the tank? I assume the rubber hose is vapor recovery or something like that? Do all fuel pumps reside in the engine compartment?
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| type47 |
Dec 28 2012, 05:55 PM
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
 If you have a factory fuel pump, and it sounds like you do since you reference 3 hoses, then the diagram above may help. I do remember that the "D" port on the fuel pump is "Druck" (maybe sic) which is German for "pressure"; can't recall what S and R stand for but the R is a return to the fuel tank... Note that the fuel filter in the "below car" diagram is from the tank, before the fuel pump so that "S"ucks gas from the gas tank; D is pressure gas feeding the fuel rail; R is a return to the tank loop... In MY 75, they moved the fuel pump to the front compartment |
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Posts in this topic
jdlmodelt fuel line identification Dec 28 2012, 05:37 PM
JawjaPorsche The return line to the tank is usually smaller tha... Dec 28 2012, 07:22 PM
jdlmodelt any idea how to verify if the po installed the fue... Dec 28 2012, 09:15 PM type47
any idea how to verify if the po installed the fu... Dec 29 2012, 06:20 AM |
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