It sounds like they are not properly lapping the surfaces or there is a nick in one of them and it is causing the leak.
Sometimes fuel will leak into the injector threads when you are bleeding air from the injectors and will take a while to boil away giving the impression that fuel is bubbling out for a while. Have you gone through several heat cycles with the engine?
Yes it is just 2 smooth metal surfaces making the seal.Do you have access to compressed air? It's a lot easier to blow everything dry and then look for leaks. It could be the return lines, or even the hard lines feeding the injectors that are leaking and giving the impression that it is the injector halves.
Alright, what is the torque suppose to be when you install the complete injector into the head?? Just got off the phone with them and they are telling me bosch recommends 31 or 35 i believe. I was going to 51ft-lbs off my bentley manual, but I could be an idiot and not read it right. I assume the 51 ft-lbs is when you are resembling the injector halves themselve. What they are getting at is that I'm tweeking the injector too much.
Quote from: Doakster on July 24, 2009, 10:42:06 amAlright, what is the torque suppose to be when you install the complete injector into the head?? Just got off the phone with them and they are telling me bosch recommends 31 or 35 i believe. I was going to 51ft-lbs off my bentley manual, but I could be an idiot and not read it right. I assume the 51 ft-lbs is when you are resembling the injector halves themselve. What they are getting at is that I'm tweeking the injector too much. 31 or 35 is way too low. I'm going by memory but the injectors as a whole going into the head is 55 ft-lbs. I've heard 51 a lot as well so that might be right. Possibly a variance in the bentleys.If they are only torquing the injectors to 31-35 at the shop then that'll be more prone to leaks. Do it to 58 ft-lbs