Clean diesel in injector wells

[RM88]

Hi all

I noticed a small leak on the drive under the engine and know that it is diesel. I took the engine cover off and although very clean I can see that where the injectors sit there is some small build up of diesel. ( I cleaned it up with some paper towel and it’s completely clean liquid, no Black Death carbon build up). Ive also noticed that the back 2 injectors are worse with the front one having no diesel around it.

I’m thinking it’s the little fuel return lines that clip into the injectors that maybe leaking but I can’t see anything actually leaking. The tops of the back 2 injectors do appear to look a little damp though, would this suggest it could be the return lines? Causing the top of the injectors to seem damp?

Maybe completely unrelated but I have what sounds like a noisy fuel pump, gurgling sound with the ignition on but not started. I’ve read a few posts mentioning this and people had resolved it by replacing the return lines. Apparently if the small o rings go then it lets air into the system via this point causing the noise.

Any help or experience of this appreciated

 

[BlackC55]

Its called a leak off pipe and repair version is available from MB. Its very likely to be the cause of the leak.

 

[RM88]

Great, thanks for the reply. I’ve seen some other threads where people have replaced the leak off pipe but MB don’t supply a connector to attach to the rest of the pipe. What would be the best connector to use for this?

 

[BlackC55]

Are you sure they don't? I am pretty sure they do a repair section.

 

[mersum1es]

sometimes cracked nozzle holder cap will cause leak to injector foot (and yes later black death)... back wells are worse because drain line is on the back of the engine, I believe its slightly inclined...

 

[RM88]

I’ve taken a couple of pictures. I’m thinking because the top of the injector is damp even after wiping it down yesterday it’s looking more like the leak off pipe?