Hello,
I recently did some maintenance on my plane which appears to have caused a problem. The maintenance was an oil change and clean and re-oil the air filter. (I know...what could go wrong) I have done a few oil changes problem free...but this was the first time I cleaned and re-oiled the air filter on this plane. It's a 9A.
Now I am unable to lean to the customary gph. The EGT on 1 & 2 are at 1400-1500 while gph are 10-11. Prior to this maintenance #1 would be the hottest at about 1300 and I'd be burning about 7.5-8 gph.
Steps:
1. Level out around 7500 ft
2. Start Leaning
3. The EGT's for 1 and 2 rapidly increase to around 1400-1500 while gph is around 10-12
4. EGT's for 3 & 4 are normal around 1100-1200
5. Turn on the carb heat and everything goes back to normal
The high EGT's come down immediately when the carb heat comes on. While the carb heat is on, I am able to lean to the normal gph of 7-8 with approximately 1200-1300 on the EGT.
Does this sound familiar to anyone?
I recently did some maintenance on my plane which appears to have caused a problem. The maintenance was an oil change and clean and re-oil the air filter. (I know...what could go wrong) I have done a few oil changes problem free...but this was the first time I cleaned and re-oiled the air filter on this plane. It's a 9A.
Now I am unable to lean to the customary gph. The EGT on 1 & 2 are at 1400-1500 while gph are 10-11. Prior to this maintenance #1 would be the hottest at about 1300 and I'd be burning about 7.5-8 gph.
Steps:
1. Level out around 7500 ft
2. Start Leaning
3. The EGT's for 1 and 2 rapidly increase to around 1400-1500 while gph is around 10-12
4. EGT's for 3 & 4 are normal around 1100-1200
5. Turn on the carb heat and everything goes back to normal
The high EGT's come down immediately when the carb heat comes on. While the carb heat is on, I am able to lean to the normal gph of 7-8 with approximately 1200-1300 on the EGT.
Does this sound familiar to anyone?
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