There seems to be a lot of effort on this site going into diverting crankcase fumes however on an indirect diesel I have these have caused no problem since fixin' the EGR valve some 50K miles ago inlet tract is clean as a whistle just a hint of oil. Any comments welcome. cheers NicI used some carb cleaner and some brake cleaner to clean the intake but I found that hot water did a better job. I should have done that first. A few years ago we found out that Canadian carb cleaner doesn't work nearly as well as the American stuff when a friend of mine used to clean intakes when doing cam welds on V8 Taurus SHO's (1996-1999). I spent today cleaning. The amount of buildup was pretty bad. The EGR is done, I cleaned it with hand tools and alot of carb cleaner. I ran several cans of degreaser, carb cleaner, brake cleaner through the manifold. I scraped and scraped with various tools. A ton of gunk came out, but it still obviously needs more cleaning.
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EnmB.