Here is an explanation of the defect in Cummins ISX15 that causes carbon packing. Usually the engine has high oil consumption with very low or normal blow-by. Ask your Cummins dealer or distributor for "Policy" help. Don't settle for less thean 50% parts and labor. Good Luck!
Cummins ISX15 carbon packing issues
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by dieselralph, Mar 28, 2018.
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Canucklehead, QUALITYTRUCK, Heavyd and 1 other person Thank this. -
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Another good reason to use Synthetic oil!
Thanks for sharing. -
We were taught about water injection years ago when I was in college to reduce carbon deposits. We actually have an ISX15 in the shop right now getting rebuilt due to the carbon packing issue and I was just asking in general about the water treatment how much nicer it would be versus rebuilding. I hope Cummins comes out with something like that.
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Dave_in_AZ, tax and KB3MMX Thank this.
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I have a better idea. How about we get all this emissions junk after the engine so no more in cylinder solutions and bring back a good hot and fuel efficient burn so no carbon builds up in the first place!
Dave_in_AZ, wore out, rabbiporkchop and 3 others Thank this. -
It's cheap to install a water injection kit like something from watermisters or devilsown , you also gain fuel economy.
I'd definitely go this route instead of having a shop temporarily fix anything or doing an expensive rebuild.
You don't have water buildup in oil over 212°F it boils off. -
Yep, as long as you don't drown the engine, it's worth a shot on a motor that is facing a rebuild anyway.
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I have heard some good reviews on the Cummins recommended Valvoline Premium Blue restore oil to get rid of the carbon packing. Bad thing is its crazy expensive. Some customers reported it dropped oil consumption alot. But in the end it is just putting off the inevitable. Might as well rebuild it with the anti polishing rings to actually fix the issue.
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Only $72.00 USD a gallon!!!
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