If the copper wash failed it would leak into cylinder and would smoke badly The number 4 injector has almost half a bottle, maybe 60ml Next up, leak off test
Diesel Injector Seal Leaking Symptoms at Holly Mellott blog
This test collects the return of diesel from the injectors for measurement and can indicate if there is a problem with one or more of them
After a little internet research i found the tests/measurements i needed to look for seemed to vary from site to site, so i found one that i think is appropriate and used that.
Learn how to identify and resolve this problem, ensuring your diesel engine runs smoothly and efficiently, with expert tips and insights. A diesel injector leak off test is used as one of the initial tests to ascertain the condition of the fuel injectors The technician will remove and block the fuel return lines and put in specially adapted connectors and lines that lead to small bottles. So there are a series of lines coming off each of the injectors that return extra fuel back to the pump
Vw parts calls this assembly a pipe image courtesy. Greetings, i've done an injector leak off test This is what i've found, but don't quite understand the results Number 1 and number 2 injector had about 25 ml gasoil which seems normal
The number 3 injector has no gasoil returning at all, not even a drop