Return Line Pressure
 

Just curious, does anyone know what pressure there is in the injector return lines of a 300d? Thanks,
Isaiah

Fuel Return Line
 

1984 300d Turbo
The Line Was Leaking At No 1 Injector Pull Off Line And Cut Off 1/2in. Reinstall Line And Engine Runs Good 139k

There's not much pressure in them, which is why they need no clamps.

I'd advise against just cutting off the end to solve a leak. The hose is cheap, even if you go to the MB dealer for it.

I bought some from the dealer today because one of mine was leaking and I couldn't find any leftover from the last time. I paid $13 for one meter.

IIRC the return lines are open all of the way to the tank. The only pressure in them would be due to friction, etc.

The cloth covered original lines are cheap and are my preference. I have seen shiny, hard return lines but they look like they will break if you have to work with them.

I've seen a few junkyard engines with rubber vacuum-type return lines. Most of the time they are as brittle as ford vacuum lines.