CM 870 turbo
01-24-2018, (Subject: CM 870 turbo ) 
Post: #1
CM 870 turbo
Sounds like I might need a turbo, truck is on the hook heading back to my shop now. Any suggestions on where to get a new turbo? I think i remember someone saying not to buy anything except a genuine cummins. Are they remans?
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01-24-2018, (Subject: CM 870 turbo ) 
Post: #2
RE: CM 870 turbo
(01-24-2018 )tree98 Wrote:  Sounds like I might need a turbo, truck is on the hook heading back to my shop now. Any suggestions on where to get a new turbo? I think i remember someone saying not to buy anything except a genuine cummins. Are they remans?

Yes you can get a genuine Cummins reman.


User's Signature: Why? Why do I always ask "why?" Because I can't learn or help teach others with "'cause I said so..."
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01-24-2018, (Subject: CM 870 turbo ) 
Post: #3
RE: CM 870 turbo
Blew a ton of oil out of the exhaust stack, driver said it was smoking like a steam engine. Would that be the seal inside the turbo?
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01-24-2018, (Subject: CM 870 turbo ) 
Post: #4
RE: CM 870 turbo
Yup.

Good luck on finding a descent priced turbo for a cm870. Last one I bought was $3400 for just the turbo. They're not very common anymore. Took the Cummins distribution warehouse a day to get in. I did a search online afterward to see if I could find it cheaper. Found a couple that were a few hundred cheaper but after shipping and returning the core it was better to buy directly from Cummins.
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01-24-2018, (Subject: CM 870 turbo ) 
Post: #5
RE: CM 870 turbo
The kenworth dealer has one in stock here. They said $2,600.00 and a $500.00 core
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01-25-2018, (Subject: CM 870 turbo ) 
Post: #6
RE: CM 870 turbo
Took it apart today, like I thought the turbo failed. I'm just wondering what made it fail? Was it a bearing inside that let loose or was it something inside the motor that failed and went through the turbo? I'm about to put a new turbo, intercooler, oil/ coolant lines etc. etc. a ton of money in parts and I don't want the same thing to happen again if something let loose inside the motor. I attached some pics so maybe you guys can get an idea of what happened?? I need to get this truck back on the road tomorrow if possible, i can post more pictures of the parts if you want to see something specific.

         
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01-25-2018, (Subject: CM 870 turbo ) 
Post: #7
RE: CM 870 turbo
From the last photo, looks like the fins got chewed up.
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01-25-2018, (Subject: CM 870 turbo ) 
Post: #8
RE: CM 870 turbo
the top 2 pics are the turbine (exhaust side) the bottom pic is the compressor side (intake side)
I found this broken stud with a strange looking nut on it inside the turbo. Was that part of the turbo or did it come out of the motor?
      
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01-25-2018, (Subject: CM 870 turbo ) 
Post: #9
RE: CM 870 turbo
the top 2 pics are the turbine (exhaust side) the bottom pic is the compressor side (intake side)
I found this broken stud with a strange looking nut on it inside the turbo. Was that part of the turbo or did it come out of the motor?

[/quote]

This is the compressor wheel retaining nut with snapped portion off the turbine shaft still in it . Have you lugged when this ting happened? Be honest.
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