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#6 piston hotter than 1-5

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Exhaust brake

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Is the EGT out of #6 piston always about 100 degrees F hotter than the outher five pistons? I took a look at mine with an IR gun and at idle 1-5 were about 270 - 290 F and #6 (closest to the firewall was about 380 F. This all normal??



I saw another post about the melted #6 piston where someone mentioned #6 runs hotter due to the restricted exhaust gas path and less inlet air. If that's the case, you'd think a slight modification in the air distribution and exhaust gas manafold would make this engine a little more efficient (and less prone to melting #6)
 
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