SYMPTOMS OF EGTS
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Joined: Mar 2002
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From: Holly Ridge, N.C.
Re:SYMPTOMS OF EGTS
1ST GEN:<br><br>I am not sure I real clear on what you are asking, but<br>I will try to answer your question. 
<br><br>The "general rule" on EGT's is that you should not<br>exceed 1300 degrees if you pyrometer probe is<br>BEFORE the turbo (in your manifold) and it should <br>not go over 1000 degrees if the probe is after the<br>turbo (generally in the exhaust downpipe). Cummins<br>ran extensive "high temperature testing" on this<br>engine shortly after it was put into the Dodge <br>CTD trucks and one engineer told me that the<br>engine could take 1300 degrees "steady" with<br>no damage to the engine. "Steady" temperatures<br>above that resulted in stuck pistons, scarred<br>cylinders, etc. You can "spike" the temperatures<br>to as high as 1800 degrees, as I have done it<br>and so have many of the other members here.<br>But,.....you don't want to leave it there for<br>very long!!! 
<br><br>I have never experienced any noticeable <br>differences in the way my engine runs when<br>I have hit higher EGT's (1400-1800 degrees).<br>I am sure some of the other members can<br>add to this. <br><br>Hope this has helped you some. These<br>engines are TOUGH and can take an awful<br>lot, but they can be damaged too! Just<br>watch your pyrometer and if you don't have<br>one I would highly recommend getting one!<br><br>--------<br>John_P
<br><br>The "general rule" on EGT's is that you should not<br>exceed 1300 degrees if you pyrometer probe is<br>BEFORE the turbo (in your manifold) and it should <br>not go over 1000 degrees if the probe is after the<br>turbo (generally in the exhaust downpipe). Cummins<br>ran extensive "high temperature testing" on this<br>engine shortly after it was put into the Dodge <br>CTD trucks and one engineer told me that the<br>engine could take 1300 degrees "steady" with<br>no damage to the engine. "Steady" temperatures<br>above that resulted in stuck pistons, scarred<br>cylinders, etc. You can "spike" the temperatures<br>to as high as 1800 degrees, as I have done it<br>and so have many of the other members here.<br>But,.....you don't want to leave it there for<br>very long!!! <br><br>I have never experienced any noticeable <br>differences in the way my engine runs when<br>I have hit higher EGT's (1400-1800 degrees).<br>I am sure some of the other members can<br>add to this. <br><br>Hope this has helped you some. These<br>engines are TOUGH and can take an awful<br>lot, but they can be damaged too! Just<br>watch your pyrometer and if you don't have<br>one I would highly recommend getting one!<br><br>--------<br>John_P
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