I must say I have never had any luck with yellow motors. If you are looking to kill one I can drive it for you for a month or two. I know guys that have a **** ton of time and miles on them with nothing but maintenance, I do not have that luck.
I love my N14s except for a broken crank at 1.5 million and a couple of head gaskets they have done me no wrong. If a good chassis would have come up (blown to bits engine) I probably would have pulled my N14 out of this truck and done that. This truck needs a cut off with modern rears (read: common parts) and a later model steer axle, more common parts. Needs way bigger u joints on all the front driveshaft locations. I would have to buy another junker truck to get me by for as long as this one would be in rebuilding.
The newer Kenny solves a couple of problems and hopefully keeps me out from underneath it with major repairs. The engine has not run the road (overnight idle) in 10 years. I'm aware of EGR problems and how to "fix them", that's all I'm saying on a open forum.
The KW not a filter, or aftertreatment truck because you can't get them across the county without a check engine or warning light, then the inevitable derate.
Most of the problems that come from emissions controls is maintenance. Nobody has time to have pieces of the system taken apart inspected and cleaned every couple of months. You may see pre filter trucks pulling a hill and it looks like a 60-70s Mack spewing black smoke. It is most of the time a sticky/slow acting EGR valve. The filter trucks do the same thing only the filter clogs with the black smoke. Heat is another killer, they want everything to run hotter to incinerate the soot in the exhaust filter, killing turbos and allowing soot and oil back into the combustion chamber.
Cars run well now that they cleaned them up and got rid of the stopgap fix of a EGR valve, if they can ever do it with diesels, engines will live longer.
