Sarafin

Do a search on "OM603" + "prechambers" - Dave has written a long and detailed response on this issue. The cause of the "problem" is that the later OM603 (and 602) engines had the injectors tilited about 5 degrees, I believe this change was made for emissions reasons. This change requires a bit of machining work on the prechambers if you want to use the old prechambers on the new style head.