Afternoon all. I've just replaced all 6 injectors on my 3.0 TDI BMK with used low mileage later revision units (I had 059 130 277 S, which is the original revision, I have just fitted 059 130 277 AH, which seems to have no issues). I did this to cure the well known injector failure on this engine (lots of white smoke on idle, fuel in the oil and bad fuel economy) as mine was suffering from it. The new injectors have been fitted and coded properly with no fuel leaks, and it runs spot on, however I'm now getting clouds of blue smoke on idle.
I think the injectors are not faulty, before I replaced them, I data logged the timing correction factors for each injector, all but one of them were very close to the limit of -45ms, the new injectors are all at exactly 0ms, which I believe implies no leaks or faults.
I have two suspicions for the leaks: I had to re use all the o rings as I couldn't get new ones easily, so perhaps they have lost their pre load and are leaking, but I don't think they would leak into the cylinder unless the crush washer is also leaking.
I also had to re use one crush washer as I only had 5 new ones, I flipped it over, but I am now wondering if that is my leak. How could I investigate and prove this without taking it all apart again?
Obviously it's now going to burn oil, and I assume I may see some combustion pressure in the cylinder head?
There were also lots of black soot particles coming out of the exhaust when I first started it, but that stopped after a few minutes (it's straight piped, but I don't know where they came from).
I ran the injectors (completely assembled) through my ultrasonic cleaner with diesel flush before fitting.
Cheers
I think the injectors are not faulty, before I replaced them, I data logged the timing correction factors for each injector, all but one of them were very close to the limit of -45ms, the new injectors are all at exactly 0ms, which I believe implies no leaks or faults.
I have two suspicions for the leaks: I had to re use all the o rings as I couldn't get new ones easily, so perhaps they have lost their pre load and are leaking, but I don't think they would leak into the cylinder unless the crush washer is also leaking.
I also had to re use one crush washer as I only had 5 new ones, I flipped it over, but I am now wondering if that is my leak. How could I investigate and prove this without taking it all apart again?
Obviously it's now going to burn oil, and I assume I may see some combustion pressure in the cylinder head?
There were also lots of black soot particles coming out of the exhaust when I first started it, but that stopped after a few minutes (it's straight piped, but I don't know where they came from).
Cheers