The head is back on.

As I was cranking the motor, waiting for the air in the lines to bleed out, I noticed a spray from the #4 injector. I stopped cranking, cracked open the fuel fitting and re-tightened it. Then I started the engine. There was still a leak from the #4 injector, but it was air blowing by on compression. I re-torqued the injector, no change. I removed the injector and the heat shield. I noticed that the new heat shield was thinner than the old ones, so I reinstalled the injector with one of the old heat shields. It is still blowing out around the base of the injector. I can hear and feel air above it. I noticed that #2 injector is doing the same thing, but much less than #4.

I did notice that the leak was coming from between the injector and the pre-chamber, not between the pre-chamber and the head.

Any ideas?

Thanks,
Greg

__________________
Greg
2012 S350 BlueTEC 4Matic
2007 ML 320 CDI
2007 Leisure Travel Serenity
2006 Sprinter 432k
2005 E320 CDI
1998 SLK230 (teal)
1998 SLK230 (silver)
1996 E300D 99k, 30k on WVO
Previous:
1983 240D, on WVO
1982 300D, on WVO
1983 300CD, on WVO
1986 300SDL 237k, 25k on WVO (Deerslayer)
1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix
1983 380 SEC w/603 diesel, 8k on WVO
1996 E300D 351k, 177k on WVO