In the Cummins the M11 and 855 came before the ISX/ISM engines. Even tho the sizes are similar that's about the only thing that is. The ISX is all new with dual overhead cams and a single head. They are a more complex engine but have proven themselves to be as good or better than the older engines, altho less easy for a novice to work on. My old truck had an ISX set at 435 hp from the factory. I had a diesel guy turn it up to about 600 hp at one point, but had to turn it back down to 550 hp because it would heat up since I hadn't changed the turbo and injectors. When I sold it it had just less than 1 million miles and used no oil and had no major work done. It did need a turbo at the time tho which was $3500.00 from Cummins, but about $1750.00 aftermarket.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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