Clean out oil in radiator??

[randomledder]

Transmission cooler should be checked. It can push oil into the cool.

[tacaem]

Just had mine into Cummins and it was my turbo that had an internal crack putting oil in radiator. My issue was oil coming out of the overflow tube from the expansion tank. What did they do to fix yours?
Tacaem

[mackwrench]

Originally Posted by tacaem

Just had mine into Cummins and it was my turbo that had an internal crack putting oil in radiator. My issue was oil coming out of the overflow tube from the expansion tank. What did they do to fix yours?
Tacaem

I'm curious, what Cummins engine does your coach have?

[tacaem]

8.3 360hp

[mackwrench]

Originally Posted by tacaem

8.3 360hp

The turbo on a ISC (or ISL) is not liquid (coolant) cooled, how did Cummins explain the cause of coolant contamination was turbo?
I mean no offense, & I ain't disputing what your saying, but that ain't how it works....


About the only way oil can get into coolant is failed engine oil cooler, or transmission cooler, which would put ATF into coolant.

[tacaem]

They showed me the ports that was for coolant and the one for oil passage. What they showed was where they pressurized the coolant port with dyed water and the dyed water came out of the oil chamber. Thank you for bringing this up to me. I will check into this to see if I can get proof of what you are saying is there some place that you could point me to get to this information? It was over a $10000.00 repair.
To further explain other thing that went on with the turbo situation Cummins had a national back order for the turbo so i started looking and found a rebuilt one on the east coast and the company that I went through to buy it saith that since the was an internal fracture in the turbo they would have to check with the supplier to see if they would accept it for a core. Also, after getting it back the oil and antifreeze is not blowing out of the expansion tank overflow tube anymore.
If there is anything that you can to help me with this i would very much Appreciate it.

Thanks tacaem

[TXiceman]

I would use one of the radiator flush products and follow the instructions.

Ken

[studmuffin1]

Coach at Cummins CoachCare. They spent a day checking and fiddling. The first place I had it to changed the compressor, and I had it towed to Cummins. Engine was hydrolocked. Something leaking into cylinder and screwing up everything. Their suggestion is a new motor, cost is real, real, real high. But I have to do something. Cannot find newer ISC 380 hp to they said go with a new motor. I am going up to talk and try to get a remanufactured one. I feel like I must assume the position. I am way passed annoyed, did not get a warranty, cause they always felt like a waste. Should have gotten one for one year, it would have helped. 1000 miles after purchase, dealer no help, feel like I was set up by original owner. Who knowns. Have a nice day, the over-wrought Muffin Man. 2013 ISC 380 h.p. Phaeton, had inspection and oil and water analyzed, said drain and refill water, then OK. That just extended the failure time. Oh well, have a nice day, the ASSUMED THE POSITION Muffin Man.

[tacaem]

Originally Posted by studmuffin1

Coach at Cummins CoachCare. They spent a day checking and fiddling. The first place I had it to changed the compressor, and I had it towed to Cummins. Engine was hydrolocked. Something leaking into cylinder and screwing up everything. Their suggestion is a new motor, cost is real, real, real high. But I have to do something. Cannot find newer ISC 380 hp to they said go with a new motor. I am going up to talk and try to get a remanufactured one. I feel like I must assume the position. I am way passed annoyed, did not get a warranty, cause they always felt like a waste. Should have gotten one for one year, it would have helped. 1000 miles after purchase, dealer no help, feel like I was set up by original owner. Who knowns. Have a nice day, the over-wrought Muffin Man.

I feel for you I could be in the same situation if mackwrench is right about not being able to get oil in antifreeze through the turbo. I put a post on his thread telling him about what I was told from Cummins and asking him reply to me if what I explained in the post #20 no reply.
Would you keep us up to date on the cost of a new engine or remanufactured one? If you like you can PM Me would really appreciate it
Thanks, tacaem

[mackwrench]

Originally Posted by tacaem

I feel for you I could be in the same situation if mackwrench is right about not being able to get oil in antifreeze through the turbo. I put a post on his thread telling him about what I was told from Cummins and asking him reply to me if what I explained in the post #20 no reply.

Would you keep us up to date on the cost of a new engine or remanufactured one? If you like you can PM Me would really appreciate it

Thanks, tacaem

I wasn't sure of what engine you have, Cummins does use coolant to cool the VGT turbos found on 2007 and later engines. These turbos have a electronic actuator attached to the center housing of the turbo. Coolant lines are attached to this actuator to keep it cool. There are passages that mate up to this to allow coolant through the center section of turbo, "bearing housing". Oil is still used for lubrication of the bearings. Don't look for heater houses going to the turbo.. These coolant line are metal with wire braided sections for flex.

If it was leaking "internally" it would 1st put oil in coolant due to higher oil than coolant pressure, then when engine shut off and oil pressure is zero, coolant would get into oil.
I don't think it'll get into air compressor side and go into crankcase, but that'll be a hellave mess

[ArtJoyce]

Originally Posted by randomledder

Why not just use fleetguard restore?

+2 designed by Cummings to clean the oils and other things out of the coolant system.

[studmuffin1]

Price , so far, for a remanufactured 8.3 from Cummins, is, installed, in excess of 45K. Sort of stops your heart. @ year coverage, etc. Got to do something!!!!

[Ray,IN]

Originally Posted by studmuffin1

Price , so far, for a remanufactured 8.3 from Cummins, is, installed, in excess of 45K. Sort of stops your heart. @ year coverage, etc. Got to do something!!!!

Have you given any thought to upgrading to a remanufacturedCummins ISL engine? The ISC and ISL use the same block, the ISC block is stroked to obtain 8.9L = ISL with 260 - 450HP..
reference: Big Bear engine company

[studmuffin1]

Asked Cummins if I could put in an ISL. They will not do engine swaps, that way. Only original size, by size I mean bore/stroke ISL and ISC are physically the same I guess. Still screwed. The Muffin Man.