wlfpckrs Posted January 14, 2011 Report Share Posted January 14, 2011 What are the most likely causes of a high left EGT reading? Could it be tied to my increased RPM at idle? Link to comment Share on other sites More sharing options...
Roger Lee Posted January 14, 2011 Report Share Posted January 14, 2011 I would need to know what you consider a high EGT temp. What is the other side's reading? I need to know what is the temp difference between the two sides. EGT's should never be high at idle rpms. Many who think they are high are normal. Link to comment Share on other sites More sharing options...
Jeremy MacGregor Posted January 14, 2011 Report Share Posted January 14, 2011 Normal EGT. (800C) 1470F Max EGT. ( 850C) 1560F Max EGT at take off ( 880C) 1616F If your not over those you have no chance of causing serious damage to the engine due to a lean mixture. Your spread is heavily dependent on carb balance, well balanced carbs should not spread more that about 10-40 degrees, some installations see spreads as high as 100F but this is usually localized to the 2000-3500 rpm area and has more to do with variances with internal carb spring length/pressure along with poorly designed throttle linkage. Link to comment Share on other sites More sharing options...
wlfpckrs Posted January 14, 2011 Author Report Share Posted January 14, 2011 My co-owner said he saw temps rise to 1800-2000, which reduced to normal when he pulled back the throttle. Link to comment Share on other sites More sharing options...
Roger Lee Posted January 14, 2011 Report Share Posted January 14, 2011 If it did get that high for real then you have some work ahead with special checks in the maint manual. This would include removing heads, doing hardness checks on metals, all kinds of things. You don't want to go there and not be sure of the real temp. The other engine temps would all be affected so if it was only the EGT and no other temps changed then I would take a real hard look at my Dynon. The good news is I don't believe it really got that high. That's off the charts. I would take a look at my Dynon and check for issues like a bad ground, a bad EGT probe, software, ect.... Was it only one EGT temp or both? I have a hard time believing that high of a temp. Link to comment Share on other sites More sharing options...
wlfpckrs Posted January 14, 2011 Author Report Share Posted January 14, 2011 Looks like there was a problem with a sensor, according to the co-owner who had the plane serviced this morning. It was only the EGT reading that was high. Whew! Link to comment Share on other sites More sharing options...
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