Flights #2 and #3
The weather is being uncooperative for flying. It snowed all day Saturday, so no chance of flying.
This morning dawned very cold (20's) but not a drop of wind to start out. Sandi and I were headed to the airport about 7:30am. With the temperature being cold, Allen at BPE suggested I block off some of the oil cooler, which I did.
Flight #2:
I got everything in order and pulled the plane out about 8:30 and warmed her up. Checklist complete and engine warmed up, I departed. She accelerated quickly and was off the ground in no time. I started circling the field at 3,000ft. After doing a dozen circuits around the field I landed to check things out under the hood. The #1 cylinder was giving me some low readings.
I pulled all of the plugs out and cleaned them up and swapped the plugs on #1/#3 to make sure I didn't have a bad plug. I also discovered on the first flight of the morning that my EGT probes for #1/#3 were switched, so I fixed that and then buttoned everything back up.
Flight #3 lasted for about 40 minutes. The winds had picked up and it was pretty rough out. The #1 cylinder was running about 250F while the other three were all running 380-390. The EGT was 1100 on #1 and the rest were 1250-1400. I knew it wasn't a plug issue now and after talking with Allen, it looks like #1 is just getting too much airflow. I also noticed my oil temp was about 150F, probably cooler than it should be.
I've put some aluminum tape along the front side of #1 cylinder to see if I can get it running warmer. I'll block off a little more of the oil cooler to see if I can get the oil temp up.
Hobbs now reads 2.1 and the GPS flight time is reading .7hrs
This morning dawned very cold (20's) but not a drop of wind to start out. Sandi and I were headed to the airport about 7:30am. With the temperature being cold, Allen at BPE suggested I block off some of the oil cooler, which I did.
Flight #2:
I got everything in order and pulled the plane out about 8:30 and warmed her up. Checklist complete and engine warmed up, I departed. She accelerated quickly and was off the ground in no time. I started circling the field at 3,000ft. After doing a dozen circuits around the field I landed to check things out under the hood. The #1 cylinder was giving me some low readings.
I pulled all of the plugs out and cleaned them up and swapped the plugs on #1/#3 to make sure I didn't have a bad plug. I also discovered on the first flight of the morning that my EGT probes for #1/#3 were switched, so I fixed that and then buttoned everything back up.
Flight #3 lasted for about 40 minutes. The winds had picked up and it was pretty rough out. The #1 cylinder was running about 250F while the other three were all running 380-390. The EGT was 1100 on #1 and the rest were 1250-1400. I knew it wasn't a plug issue now and after talking with Allen, it looks like #1 is just getting too much airflow. I also noticed my oil temp was about 150F, probably cooler than it should be.
I've put some aluminum tape along the front side of #1 cylinder to see if I can get it running warmer. I'll block off a little more of the oil cooler to see if I can get the oil temp up.
Hobbs now reads 2.1 and the GPS flight time is reading .7hrs
posted by Matthew at 8:45 PM
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