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Old 11-13-2011, 07:46 PM   #1
dixieray53
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Default Cat C7 Turbo

We have had 2 blown turbo's on our 2009 Crescendo C40k in 2 months... So far no reason found... Just bad parts... 17,000 miles total on the Cat... Any others with C7 turbo issues. Dickson
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Old 11-16-2011, 09:07 PM   #2
RayChez1
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Default Re: Cat C7 Turbo

I have the 3126-E which is the same as the C-7 and I have 50K miles on it now with no issues at all with the turbo.
Sounds to me like you have a lubrication problem going to the turbo.

When making a long run, do you let it idle for awhile before you turn the engine off. This allows the turbo to cool down, because they get extremely hot.
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Old 04-25-2013, 11:35 PM   #3
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Default Re: Cat C7 Turbo

Just read an article on the Caterpillar website where Caterpillar claims that the C-7 which derives from the 3126-E series is proving out to be a 450-500K miles before they are coming into Caterpillar shops for rebuilding.

That is good news to read since there are many who have coaches with those Caterpillar engines.
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