We run 9 KW's here at work, all have a 450hp ISX cummins in them. Trucks are 2012's with around 250,000 miles on them. About a week ago we tow a truck in from Vanning to San Antonio with a rod hanging out of the block. Last night another truck died, spun bearing (we think) and seized the motor, wont turn over.
The KW truck itself is great, the motors in all of them are garbage. Since brand new they have all burnt 2-3 gallons of oil on a 3300 mile trip and none of them seem to hold coolant for very long. I give it another week until we blow another motor.
Anyone else running these trash ISX 450's?
lemme tell you a few things about the ISX being as i work at Cummins.
Ceramic plungers- shatter, go thru the oil system take out everything, literally, i have pictures and have seen this many times. i approve engine swings because of this failure.
the coolant usage- 2 things that are very common, EGR cooler of course, the 2nd one is counterbore fretting, the liners are rotating inside the counterbore and taking out the machining marks aka fretting, the first sign would be a blown head gasket, tech measures protrusion and says hey got tilted liners, pull all 6 cut the counterbores and put the new updated liners in it.
oil usage- THE MOST COMMON thing that happens to these things is what is called carbon packing. what happens is carbon will pack inside the ringlands, pushing on the rings, making the rings have full face wear and polishing the liners. Cummins has come out with a reduced diameter piston to fix this issue, however they do re carbon pack every so often.
THE NEW CM2350s since theyve been released, they have issues with the oil pump drive gear cracking. instantanious loss of oil pressure from this, and turbo sector shafts seizing up.
if you guys ever need anything feel free to pm me or call, text i dont care. i do this every day and theres not a whole lot i havent seen on all the engines cummins produces.
Cummins is coming out with a new engine that will not have a DPF and still meets tier 4 emissions. i can help you keep these things on the road if you can hold off a couple years till it comes out. im not releasing any information for my own sake. :blahblah1::blahblah1: