just did my DV seals and couldnt help but notice the #3 line (middle) is larger then the rest. the nut was a 17mm on the pump and injector side. all others were smaller tubes and 14mm nuts. is this normal? is it a balance thing or what.

603.961

thanks for info

When one of the Fuel Injection Hard Lines on my Volvo Diesel developed a pin hole in it I had another Line made at a Fuel Injection Shop.
The normal size of the line Nuts is 17mm. The one they made for me has 5/8" nuts on it.
So, from your description it may be that odd line is a replacement like mine is.

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84 300D, 82 Volvo 244Gl Diesel

that sounds like a line from a 616/617 motor... I did not know they would fit...

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Sounds like an injector/line/and delivery valve holder from a 65/6/7 would be the only way things would work!