It was a fun night working on the plane. I had an hour or so and wanted to work on something other than the cowling again, so I worked through the initial install of the engine sensors. Each of the 4 cylinders gets a cylinder head temp (CHT) sensor as well as an exhaust gas temp (EGT) sensor. I put some anti-seize on the collar of the CHT since it was going into the head of the cylinder and then just screwed them in. On the EGT, I drilled a 1/8 inch hole 2 inches below the exhaust collar on each cylinder. Its key to get them all in the same spot and 2 inches was the lowest I could go on #1 cylinder. Also, in order to avoid conflict with inserting spark plugs etc, I drilled these at a 90 degree angle to centerline. There is no conflict with the cowling.
Also I slipped the oil and fuel pressure sensors into the appropriate
spot on the firewall.
I couldn’t figure out what was wrong with the oil temp gauge,
which should have been the easiest of them all. It seemed to small and would slip right into
the center of the port without even touching the sides.. Turns out Dynon shipped some 7/16 inch
diameter probes, vs the required 5/8 inch diameter. They will be replacing it with the correct
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