Jamie
Well Known Member
On the way home from Sun-n-fun I noticed my #2 EGT went down to 600F. The temp would then fluctuate wildly and eventually it just dropped down to -99F, so obviously the problem was a bad probe.
I ordered a new probe from Dynon and when I pulled the old one, I noticed that the probe had actually burned off. At first I thought it was broken, but upon closer inspection it was burned through and only two little wires were sticking out of the nub.
I pulled the other three to see what they looked like, and all of them were burned off with only little wires hanging off of them and a little piece of metal holding the two wires together.
I did take pictures of the probes but I left my camera at the airport. I will get the camera tomorrow and upload photos and post them to this thread.
Has anyone else seen a failure like this? I asked around here and no one around here has EVER seen a failure like that in EGT probes, including two IAs I know that are top-notch guys.
I always lean to about 1400F. Probe holes are drilled approximately 2 inches from the top. I have 250 hours on the plane.
I have done a search on Dynon's forums and apparently they say that failure after 200 hours isn't unheard of. They say that any K-type EGT probe will work. Does anyone have any recommendations for some different probes that may last a little longer? I'm all about minimizing maintenance items if possible.
I ordered a new probe from Dynon and when I pulled the old one, I noticed that the probe had actually burned off. At first I thought it was broken, but upon closer inspection it was burned through and only two little wires were sticking out of the nub.
I pulled the other three to see what they looked like, and all of them were burned off with only little wires hanging off of them and a little piece of metal holding the two wires together.
I did take pictures of the probes but I left my camera at the airport. I will get the camera tomorrow and upload photos and post them to this thread.
Has anyone else seen a failure like this? I asked around here and no one around here has EVER seen a failure like that in EGT probes, including two IAs I know that are top-notch guys.
I always lean to about 1400F. Probe holes are drilled approximately 2 inches from the top. I have 250 hours on the plane.
I have done a search on Dynon's forums and apparently they say that failure after 200 hours isn't unheard of. They say that any K-type EGT probe will work. Does anyone have any recommendations for some different probes that may last a little longer? I'm all about minimizing maintenance items if possible.
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