Posted 3/18/2009 21:33 (#648832 - in reply to #648447) Subject: Re: possible causes for coolant in oil on cat 3406E?
Upstate New York
Had the same thing happen to our 3406E 550, it was the o rings on the liners, there was some pitting so we did the overhaul while it was apart. A year later we were getting milk in the fuel tanks, o rings on the injector cups were bad, they didn't get changed at the time of the overhaul because computer said that the injectors were fine. If o rings are your problem, CHANGE orings on injectors!
possible causes for coolant in oil on cat 3406E?
