I dont have any of my cars here, and I'm leaving from work tonight to go get another car that needs fuel hoses installed before it can be started. So, of the 2 steel lines at the firewall, is the top or bottom line the send or return? When I say top or bottom, I dont care if the ends cross or the end of the steel line, I'm referring to where they are bolted to the firewall. Looking at that, which one is closer to the bell housing/tunnel, the send or return?

Thanks in Advance!

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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D

If it indeed matters, it's an OM603

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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D

On my Blue 87 the supply and return are bundled together inside a rubber piece and the supply is on top and the pipe angles in towards the engine. The supply runs straight forward and located underneath the supply line at the point they terminate.
DDH

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!

Thanks man. I ended up just winching it up on a car trailer, and towed it home.

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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D