Cummins vs. Cat

I have carried that amount of weight in my trailer.

We don't have any older cats in our fleet. The oldest would be my 04 bridged c15 rated at 475. The ISXs in our fleet will out pull all of the cats in our fleet and do it on less fuel and less down time in the shop.

 

I don't want this to come off the wrong way, but what general issues put the trucks in the shop? Were they even engine related?

The reason being is that I was talking to a guy awhile back that was trash talking the motors in their trucks back at the yard. Come to find out, the majority of issues that were sidelining them had nothing to do with the actual engine.

 

Most of the time it's the clown pushing the pedals that's the real problem!

 

I spent $500 on a hose clamp once. Driver saw coolant leaking, called a tow truck. A hose clamp broke, never thought about looking to see where it was coming from I guess.

 

But sometimes the IDIOTS in the shop are worse. I had a shop foreman that told me I was a ####### truck driver and did not know what I was talking about when I was complaining about my rear end feeling TIGHT. He goes it was a reman they are supposed to be that way. Later that night around Des Monies IA well that rear end did not like being tight because she dropped the Pinion shaft into the center carrier and here is what it took out. The Rear Differantal and HOUSING put the ring gear thru the housing at 65 MPH with no warning. Took out the Thrushaft and the Front diff and the Power Divider also with the shock load when it jammed up. Then proceeded to take out all 4 axle shafts then the wheels began to turn again after 30 feet. Finally chucked the inttermediate drive shaft out broke the one in between the Carrier Bearing and the front Diff.

What caused this carnage the Rear Pinion Shaft was SET .001 to tight and burned the bearing out luckily the rebuilder warrentied the whole thing he had to eat 18K in repairs to the truck. See that foreman never did like the fact that I could diagnose something with hearing it or feeling it in my seat.

 

I'll defend the idiots in the shop....But only to this extent.

They deal with "drivers" on a daily basis that don't know anything about trucks or what they ought to sound/feel like. These same "drivers" will go into a shop and waste an hour of the shops time complaining that the truck's doing this or that or "It's making a real bad noise and I think it's ..."

It used to not be that way, But the modern day "school educated" "truckers" are not the same kind of drivers that were around in the days of old when we could listen, feel and accurately diagnose a problem because most of us had heard or felt that noise before and had probably helped someone fix it or fixed it ourselves.

Like four wheelers and politicians that try to tell us how they know better than we do how to do our jobs..."Drivers" do the same thing to mechanics.

 

The school truckers don't care. Last night i turned the truck on for my dad. Heard something just clack clack. Turned out a screw for the upper passenger step was loose. Tried tightening it myself by hand but no major issue. Check the rest of the steps just in-case one was loose. No school for me. Learn by experience. I can tighten a fan belt just have to pin point which one is loose which isn't hard. For these kinds of things you don't need the shop just know how to turn a crescent wrench. But for something major and you the driver know by a gut feeling somethings wrong. Take the wrench out for a quick ride. No air in the seat maybe he'll fell it also.

 

Cat all the way had a Cummings 444 spewing out black smoke but nothing compared to a Cat

 

I have a 05 c-15 accert 550 hp and a 07 475 isx my cummins will pull side by side with my cat. I have tried everthing to improve my cat. Can any one help?

 

The higher you go with the ISX motors the further they walk away from the Cats.
A 550 ISX will run off and hide from a 600 Cat,Cat motors can see big numbers,but it also cost much bigger dollars to make it happen.
Pull Hard/Run Fast never equals fuel mileage,fuel mileage is profit with my trucks.


Sideline gossip suggest the new Pete motors might just have "something"
here in the near future . . . . . ?