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Old 06-08-2016, 10:04 PM   #1
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Turbo Removal

I have a C9 Cat engine in my Class "A" motor home. A Cat Rep told me that my Waist Gate is not closing properly after 80,000 miles and I need to change it out with a rebuild. Seeing I`m looking at around $5,000.00 Canadian for the rebuild turbo and labour, I have decided to do the labour part myself plus cut out the middle man as well.

I have the turbo already to lift out except the two flanges next to the exhaust brake will not separate. I even tried diving a sharp putty knife down to try and forse them to separate.

Does anyone out there have any suggestions what I should be doing next ?

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Old 06-08-2016, 10:16 PM   #2
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mcmac, any chance you could post a picture of your trouble area.

I worked on Cummins for 14 years and had the turbo of my Cat two years ago.
Maybe if I see you problem area I can give some tips.

If you haven't posted pictures before , info is in the "FAQ " drop box in the dark blue bar across the top of the page, under the Google search box.

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Old 06-08-2016, 11:28 PM   #3
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i know what you are talking about as i happened to look at it on my cummins recently for the reason of no gasket in between the flange and the turbo housing. i called cummins they said it was slid in with 3 bolts fastened to secure the flange. i am guessing cat might do the same thing. do you see a gasket there?
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Old 06-09-2016, 12:47 AM   #4
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Before you replace the turbo get so of this oil and put a few drops in the air line and all the moving parts.
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Old 06-11-2016, 08:22 PM   #5
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Do you know if it is just the waste gate actuator that is acting up?

Cat insists on selling you the whole turbo when the waste gate fails.

You can buy an after market actuator at most diesel fuel injection shops.

I replaced the one on my 2001 C16 and had a truck repair shop install it for under $100 parts and labor.

Something to look into before you pull your old one.

I posted this same reply to your other thread in the Cat forum.
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Old 06-11-2016, 08:35 PM   #6
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There is probably a lip on the inside of the flanges. Exhaust parts stick together, I would be surprised if it came right apart. Try taping with a hammer to break them loose, just don't over do it to the point of denting or bending. It with take a liberal amount of force to get them apart. At that point in the exhaust it can still get to around 1000 degrees when running hard. There should be a v band clamp holding the exhaust to the turbo. You might need to loosen whatever clamp is holding the vertical part of the exhaust as it comes up from below to get some wiggle out of the exhaust and get a to move toward the front of the coach. It doesn't have to move far, just enough to clear the lip on the inside of the flange. Good luck

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