Geico266
Well Known Member
Ran into an interesting issue. Long story so I'll give you the short version.
#5 cylinder runs much cooler than the other 5. No engine monitor, just instrumentation on one cylinder. I just used a hand held infared. At idle the exhaust pipe is 350F, and all of the other cylinders are 650f - 750F. I found the issue when I changed plugs "massive to fine wire" and back. The plugs on #5 were noticeably cooler to the touch after a short run up. After flying hard for 20 mins #5 valve cover is 100f cooler than all the others.
Any ideas or thoughts would be greatly appreciated.
#5 cylinder runs much cooler than the other 5. No engine monitor, just instrumentation on one cylinder. I just used a hand held infared. At idle the exhaust pipe is 350F, and all of the other cylinders are 650f - 750F. I found the issue when I changed plugs "massive to fine wire" and back. The plugs on #5 were noticeably cooler to the touch after a short run up. After flying hard for 20 mins #5 valve cover is 100f cooler than all the others.
Any ideas or thoughts would be greatly appreciated.
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