anyone out there that has rebuilt there turbo???

Our mechanics tell me it is not showing any codes at all, but that is what they are leaning towards. We only have 18 trucks, at the company i work for, all ISX Cummins. The turbo has blown up on most all of them at 350 to 450K miles. $3300.00 each from Cummins, and thats not installed. Mine made it to 500K and let go on a very busy street with a load of gasoline on. Luckily I wasnt far from Cummins.

Gotta miss those old pre-egr engines!!!!!

 

Take the $$$$ and drive down to St. George and let PDI put on a manifold, non-egr turbo and program the engine. You will gain over 1mpg and it will pay for itself in a few months, and the power will increase by almost 30%. It will drive like a new truck and you won't be able to wipe the smile off your face, i gurrantee it !!!!!

 

That turbo is a holset VGT (variable geometry turbo) meaning the vanes change angle on compressor side. You could pull the intake and exhaust off and try spraying carb cleaner or something to break up the soot and carbon and free up the vanes. Also check that actuator that is on the side of the turbo if it's stuck or non operative turbo will not respond well or build required manifold psi.

 

I am assuming that is how yours is now? I only saw the first post after you were in Utah.

 

Mine was a pre-acert CAT, but the same thing basically. After the turbo and manifold install, I am seeing high-6 to mid 7's for my MPG now, as where before I was around 5.5mpg on a good day. They had a 2007 ISX in the shop when I was there that they finished up doing the swap I mentioned above and they had it on the dyno. It was originally a 450 ISX and now was putting 523hp to the wheels and had the EGR deleted, which will save easily a few grand over the life of the truck from plugged/damaged systems.

I called them last week to ask about the new 2012 trucks and they said they can dial in the tune to get peak HP and less UREA use per mile. He said the mpg average was around 8mpg on the 3 T660's they have done for a local B-train hauler in UT

 

The center cartridge is where the bearings are. Sometimes the bearings get coked up. Especially if proper warm up or cool down is not followed. Or have not properly kept oil changed. Try using a dial indicator on shaft of turbo and check for excess radial and axial play. Can also pull intake off turbo and spin shaft with fingers and see if you feel and binding?. ENGINE OFF OF COURSE!. sometimes you can feel a hard spot or binding. Just because blades are not hitting housing does not mean center cartridge bearings are not gone. Have you priced just the cartridge?.

 

I still think an EGR delete and tune would save you a lot of $$ and headaches

 

Wonder if it would that affect warranty on my 4 new KW's ? would not mind some improved MPG 's