I decided to perform a mag check at altitude yesterday. I have an IO-360 with a CS prop. I was crusing at 8.5K a little ROP when I tested the mags.
The mags were fine but what I noticed was the EGT's were increasing. This was true with either the right or the left mag and I repleated this twice to confirm the reading. When I did switch mags I only let it run with one mag off for about 5 seconds. But the increase in EGT's was noticable.
I am trying to understand why the EGT's would increase with a less than efficient combustion.
Any ideas?
The mags were fine but what I noticed was the EGT's were increasing. This was true with either the right or the left mag and I repleated this twice to confirm the reading. When I did switch mags I only let it run with one mag off for about 5 seconds. But the increase in EGT's was noticable.
I am trying to understand why the EGT's would increase with a less than efficient combustion.
Any ideas?