So a long time ago i replaced my nozzle in my 300SD, and there were NO leaks, 2 months later injector # 4 (second to the firewall) is now leaking like a mad dog (but surprisingly i am still getting good MPG) I am planning to get it to take it out tomorrow so i can re torque it, will i cause any damage driving with a leaking injector??? ( i need to drive for today about less than 2 miles)

I have torqued every one of those injector at 52 pounds, So should i re torque it or get another housing or clean it even more enough, "Note" the fourth injector was not leaking until now.

Edit, also injector 4 has 2 shims at the top of the injector....

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Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi

Make sure to rule out a leaking fuel line, it's easy to misdiagnose.
No problems driving it with a leak.

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83 SD

84 CD

Where did you get the injectors?

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"

i got the injector at Mercedes Source, I am sure that is coming out for the body not the top...

__________________
Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi

Like said before, I would change the hoses before an injector that new. I thought mine were leaking from the center also. A hose change and the leak was gone.

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83 300SD Dark Silver Dark brown inside

Try taking the nozzle back off and cranking the assembly down on a bench ,the 2 pieces have to be together very tight,not sure the torque ,just know to take them apart requires a vice and a good breaker bar.Remember the psi of the diesel running throught the injector is very high, any weak point will be the threaded piece.

I would tell ************** guy that he sent you a leaky injector and leave it on for now if you can tolerate it, and are sure its the injector. Tell him to send you another one. He's trying to build a business and not doing so would be a poor move given the discussions here on the forum (that I suspect he monitors). When you get it, install it, check it, then send the other one back. Of course just fixing it might be easier, but that assumes it just needs to be tightened, which might or might not work.

Edit: Hey how 'bout that it autodeleted the business name even though this is hardly an endorsement.

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1983 CD
1958 Studebaker Packard (being resuscitated)

I thought you put these nozzles in only a month or so ago. Like others have said Tripple check it is not the return line. If it is the injector then remove the injector, take it apart and clean the mating surface on the top and bottom halves with a solivent, then re-assemble and re-torque.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

I did mention that i replace my nozzle not the injector, nozzle is fine... So today i took it out and open it clean and soak it with Brake cleaner, soak it in diesel and Wire brush it with brake cleaner, i will also change the hose later... I have to check it tomorrow its really dark here. Strange only the last 2 injector is leaking, rest of them are just fine...

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Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi

Use new heat shields.

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83 SD

84 CD