tectweaker
Well Known Member
I am chasing an issue that I have been noticing more recently.
On take off and climb out I am seeing higher EGT and CHT on one cylinder (#4). New plugs, cleaned injectors - the spread is about 250f higher - the EGT still is lower than 1450 on all cylinders. CHTs are higher compared to other cylinders by about 20-30 degrees.
As soon as I start leaning - the CHTs become super even with other cylinders (within 2-4 degrees) and also the EGT spread drops to within 75-100f.
Essentially leaning makes it super even. Any ideas what might be causing it - I am planning to clean injector on this cylinder again. The engine runs particularly smooth at all rpms, starts great and idles well.
The only thing that was changed most recently was the mixture cable - Not sure if that had anything to do with it.
On take off and climb out I am seeing higher EGT and CHT on one cylinder (#4). New plugs, cleaned injectors - the spread is about 250f higher - the EGT still is lower than 1450 on all cylinders. CHTs are higher compared to other cylinders by about 20-30 degrees.
As soon as I start leaning - the CHTs become super even with other cylinders (within 2-4 degrees) and also the EGT spread drops to within 75-100f.
Essentially leaning makes it super even. Any ideas what might be causing it - I am planning to clean injector on this cylinder again. The engine runs particularly smooth at all rpms, starts great and idles well.
The only thing that was changed most recently was the mixture cable - Not sure if that had anything to do with it.