Originally Posted by silvermax04
Do you think that has anything to do with the strange need for an RRT that requires the change of oil of new diesels on dealer lots to a different type of oil? or seperate issue.
From what I've been able to research about it, is that it's not a lubrication issue, but rather a manufacturing one. From what I understand this gear is a press fit on to the camshaft. Depending on the degree of "press", which can vary because of manufacturing tolerances, determines how tight of a fit it is. If the camshaft bearing surface is on the low end of the tolerance, (small side), and the hole in the sprocket is on the high end, (large side), the fit can be loose enough that the sprocket can slip on the shaft in time.
This of course throws the cam timing out the window, and the engine basically self destructs, destroying the engine. (Pistons, valves, and possibly the cylinder heads). Resulting in very expensive repair costs. I've heard of this happening to engines with as little as 20K on the clock. Or as much as 148K. And just about everywhere or anywhere in between. A "ticking bomb" so to speak. Needless to say, between that and the lack of a lifetime warranty, I walked away from the Eco Diesel option, and ran to the HEMI. So far I'm very pleased. (Especially with plummeting gas prices). I wish the Eco Diesel owners well, and hope Chrysler / Fiat comes up with a warranty fix soon. There is a lot of money, as well as peace of mind riding on this one.