UnPossible
Well Known Member
I have fired up the IO-540 on the RV-10 I am building, I am seeing some weird data, and am trying to figure out if I have a problem, or if it is likely related to being a new engine that is still breaking in.
This is a brand new Io-540 that my son and I built with assistance at AeroSport Power. Ignitions are 2X Surefly... pretty much a standard IO-540.
I have two cylinders (#3 and #5) whose EGTs are quite a bit higher than the other four. When I shut off one of the ignitions, the EGTs on those same two cylinders seem to spike higher than the other four as well.
I've checked the timing on both ignitions, and they are right on TDC for #1. I've checked the plugs on cylinders #3 and #5 and they look clean. I've pulled and cleaned the injectors on both cylinders and didn't see any sort of clogging or debris.
The engine starts easily, but seems to run a little rougher than I would expect (not data to back that up). Any suggestion I should be looking at, or is this most likely something that will smooth out once the engine is broken in?
Thanks,
Jason
This is a brand new Io-540 that my son and I built with assistance at AeroSport Power. Ignitions are 2X Surefly... pretty much a standard IO-540.
I have two cylinders (#3 and #5) whose EGTs are quite a bit higher than the other four. When I shut off one of the ignitions, the EGTs on those same two cylinders seem to spike higher than the other four as well.
I've checked the timing on both ignitions, and they are right on TDC for #1. I've checked the plugs on cylinders #3 and #5 and they look clean. I've pulled and cleaned the injectors on both cylinders and didn't see any sort of clogging or debris.
The engine starts easily, but seems to run a little rougher than I would expect (not data to back that up). Any suggestion I should be looking at, or is this most likely something that will smooth out once the engine is broken in?
Thanks,
Jason