I have a parts 1980 engine. Are those injectors the same as a 1983 turbo?. It’s a 300d. I have an injector leaking and I don’t think it’s the return hoses. Maybe the metal return fitting is leaking or above the return hose.

Side note. I blew into the return hose and it seemed a little restricted but I was able to blow air in. I suppose the return goes back to the tank. All thoughts appreciated.

Will any deep socket 21mm. Work to take injectors out? Mike

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They're not the same injector. They may look similar, but they have a different nozzle, different spring internally, and different pop pressure. Make sure the return hose is TIGHT on the injector, if they're easy to press on and off they'll leak.

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Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

123:

You will get more replies to a Diesel question by posting in the Diesel section rather than in the Gasoline section.

Non turbo injector pops at 115psi. Turbo version pops at 135psi.

You probably can fit a 115psi injector to the turbo engine and it will run. How well? I don't know but should be ok. Check for any leak. It should be leaking from the nipple or the return line, unlikely leaking from the body itself.

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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.

I thought my search did not pull up much since I was in the gasser section. Oops

I’m see if I can pull one from my old engine. The thought of wasting precious fuel makes me Ill. The return hose is sort of new and I cut it off and reattached it to make sure the hose was ok. Stay tuned.