You start with a small, simple sounding project, you end up with... This is in regards to the 89 Yanmar 3gm30F The injector parts (precombustion chambers) will not "pop out" by cranking the engine. Several amateur friends of mine and I brain stormed what else I might try. Someone mentioned that perhaps running the engine a while and warming up the metals will loosen them. While the engine still warm, I can try to disassemble the fuel lines, etc. and remove the parts. Worth I try, I thought. So this morning I went back to my boat, placed the fuel injector back into the bore (the middle one of the three), hooked the fuel lines, opened the fuel cock on the fuel tank, and began bleeding the system of air. To bleed the air out of the high pressure fuel line, I loosened the nut that secures the fule line to the injector by one turn. I then had Tina crank the engine with the starter mortor. I was hoping to see bubbles. What I saw was: 1) A rythmic "psst" sound accompanied by a white spray ejecting from the bore in which the fuel injector sits in (as if the injector wasn't 'sealed' in place) 2) Dark smoke coming out of the air intake... I removed the fuel injector, took a peek inside the bore with a mirror and a flash light and saw no foreign objects inside the bore. I wiped the injector clean and reinstalled. I made sure that the nuts that secore the brackets for the injectors was given 14 pounds of torque. When Tina cranked the engine I saw the same two things mentioned above. My questions are: 1) Will having the engine be warm help me to remove the parts in the bore? 2) What can be causing the injector to not seat in the bore completely... 3) Is dark smoke normal for a 10 year old engine? especially when it's coming out of the air intake? Understanding that this engine hasn't been cranked for about a month now... 4) Any recommendation on which laundry detergent to use to remove diesel stains from clothes? Any insight is deeply appreciated! Thanks, James "will my engine ever start again" Marohn Seattle, WA