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-   -   Quick Q: Mercedes w123 617 fuel lines (http://www.peachparts.com/shopforum/diesel-discussion/197646-quick-q-mercedes-w123-617-fuel-lines.html)

JBG 08-20-2007 04:10 PM

Quick Q: Mercedes w123 617 fuel lines
 
The steel fuel lines coming from the diesel tank are stacked in the engine bay; which one is return/send?

Top =

Bottom =


Thanks,

rrgrassi 08-20-2007 05:56 PM

The return has the cigar hose attached, and supply has the primary filter attached.

I am thinking the return is the upper line, based on position of the cigar hose, and how the supply line runs under it to attach to the primary filter, then to the lift pump.

JBG 08-20-2007 06:19 PM

That is correct, just spent some time figuring it out. My plumbing is pretty intense, even the guy who did it couldn't explain it (typical mech BS :). This is due to having a customised veggie system, in case you were wondering...

ty

toomany MBZ 08-20-2007 06:20 PM

Quote:

Originally Posted by JBG (Post 1597386)
The steel fuel lines coming from the diesel tank are stacked in the engine bay; which one is return/send?

Top = Return

Bottom = Supply


Thanks,

Not a problem.


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