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Exaust heat problems

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Old Feb 28, 2021 | 08:05 PM
  #1  
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Exaust heat problems

So, my exaust from my turbo is creating massive smoking inside the cab, the insulation inside the firewall is too hot too touch. Who makes a lace up insulated boot that I can slide down behind it to stop this?
 
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Old Feb 28, 2021 | 08:22 PM
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This is not a common problem and you might have a problem you should fix rather than try to compensate for.
 
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Old Feb 28, 2021 | 09:06 PM
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I agree with Walleye.

Do you have soot at the turbo area? Might be a massive uppipe leak. A set of cheap SS bellowed uppipes would take care of that.
 
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Old Feb 28, 2021 | 09:58 PM
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Originally Posted by RacinJasonWV
I agree with Walleye.

Do you have soot at the turbo area? Might be a massive uppipe leak. A set of cheap SS bellowed uppipes would take care of that.
I replaced the up pipes and sealed everything before this trip. It was doing this before. My downpipe is perhaps an inch from the firewall. I’m 400 miles into a 7000 mile trip and I can’t do all of it with the windows down. Every turbo diesel I work on in boats has a insulated sleeve around this part of the pipe, usually with hooks and laced together with ss tie wire.
I will call some diesel shops tomorrow and see if anyone has one I can work in there.
 
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Old Feb 28, 2021 | 10:37 PM
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Almost sounds like a clogged cat
 
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Old Feb 28, 2021 | 11:05 PM
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Originally Posted by Wes444
Almost sounds like a clogged cat
no cat, no muffler, straight pipe
 
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Old Mar 1, 2021 | 06:39 AM
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Are you seeing a decrease in boost or performance in correlation with the exhaust issue?

If so, the manifolds, up-pipes, collector or turbo are suspect.

If not, then down pipe and exhaust are suspect.

This is not definitive, but little clues you can observe.
 
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Old Mar 1, 2021 | 06:45 AM
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I agree with the others here , something is wrong causing that much heat, I see your just starting a long trip going to be a bugger to fix out on the road! be careful and good luck!
 
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Old Mar 1, 2021 | 07:06 AM
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Is the insulation still attached to your firewall?
 
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Old Mar 1, 2021 | 09:55 AM
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Do you have good boost? Turbo spooling up ok? Pulling an RV? You shouldn't have enough heat coming off that pipe to burn the insulation on the inside of the cab like that.
 
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Old Mar 1, 2021 | 11:17 AM
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Originally Posted by Sous
Are you seeing a decrease in boost or performance in correlation with the exhaust issue?

If so, the manifolds, up-pipes, collector or turbo are suspect.

If not, then down pipe and exhaust are suspect.

This is not definitive, but little clues you can observe.
great performance, just getting my firewall way too hot
 
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Old Mar 1, 2021 | 11:19 AM
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Originally Posted by Kwikkordead
Do you have good boost? Turbo spooling up ok? Pulling an RV? You shouldn't have enough heat coming off that pipe to burn the insulation on the inside of the cab like that.
runs like a raped ape, hauling a heavy slide in camper. This happened last trip, and it was running empty, so not load related. Waste gate?
 
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Old Mar 1, 2021 | 11:22 AM
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Related to your original request, I used this to wrap my uppipes and downpipe. SunplusTrade 2" x 50' Black Exhaust Heat Wrap Roll for Motorcycle Fiberglass Heat Shield Tape with Stainless Ties
Amazon Amazon

Others have installed a blanket on the turbo but I have no info on that aspect.

I still feel something is amiss if you are seeing that much heat in the cab.
 
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Old Mar 1, 2021 | 11:35 AM
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Originally Posted by bewildered 7.3
runs like a raped ape, hauling a heavy slide in camper. This happened last trip, and it was running empty, so not load related. Waste gate?
Running a heavy tune? I haul a 13k 5th wheel with stock injectors and have to limit my tune to 25 extra HP or the EGTs go into the red.
 
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Old Mar 1, 2021 | 11:38 AM
  #15  
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Originally Posted by bewildered 7.3
great performance, just getting my firewall way too hot
Something is not right...

Originally Posted by RacinJasonWV
Related to your original request, I used this to wrap my uppipes and downpipe. SunplusTrade 2" x 50' Black Exhaust Heat Wrap Roll for Motorcycle Fiberglass Heat Shield Tape with Stainless Ties https://www.amazon.com/dp/B01KVYH66U...ing=UTF8&psc=1

Others have installed a blanket on the turbo but I have no info on that aspect.

I still feel something is amiss if you are seeing that much heat in the cab.
Like Jason, I installed some heat wrap on my up-pipes and down pipe when I installed the T4 kit. From what we have seen, the turbo blankets are not a good idea unless you get the $300+ version and even then may be somewhat underwhelming. I am not an engineer, so take my thoughts and advice for what they are.

Like Jason again, I feel something is not right, but everything we are thinking of or mentioning is coming up as a dead lead.
 
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