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Old 04-07-2017, 09:02 PM   #15
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Originally Posted by dennis45 View Post
Yes, I totally agree with having an EGT gauge. And I also agree the more fuel you add the hotter the flame. But, in order to burn that fuel you require more air which is where the turbo charger comes into play.
So, If the turbo failed I must assume there would be less air being forced into the combustion chamber. As a result, no air, no combustion. Lots of black smoke from the unburned fuel. Unburned fuel, lower EGT. No?
No, it doesn't work that way. Diesels are the opposite of a gasoline engine. With a gas engine the more fuel (richer mixture) the cooler it will run. You will always have some air being ingested even if you pull the turbo off completely. You WILL have high EGTs.

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