cjensen
Well Known Member
Searched the forums today, and didn't find anything *SPECIFIC* to my setup...so, I'm asking for 1) General thoughts on what I'm experiencing, and 2) SPECIFICALLY, anyone with my setup, which is O-360, MA-4 carb, and Sam James intake, to chime in.
I have 35 hours on my 7 now, and I get this exact same problem from time to time. That problem would be, after a cruise configuration power reduction (doesn't matter if the mixture is already full rich or not), I am getting a VERY noticeable engine stumble. I don't know if it would actually quit because I always push the throttle back in when it happens, and it smooths right back out. It's an attention getter, but I half-expect it now. As I get closer to my 40th hour, I need to get this corrected. It does not happen on every flight. In fact, it hasn't happened at all in the last five or so hours. Yesterday while pulling the power to enter the pattern, it did stumble. It was humid, and temps were in the high 30's/low 40's.
It has never done it while in the pattern shooting stop n go's. This sort of leads me to believe that it's a carb ice issue. After a 15-20 minute cruise set up (or longer), it occurs, but not all the time.
After my pattern entry, and subsequent take off's and landings at that airport, it did not do it in the pattern, and it didn't do it on my return leg to my home airport.
Thoughts?![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I have 35 hours on my 7 now, and I get this exact same problem from time to time. That problem would be, after a cruise configuration power reduction (doesn't matter if the mixture is already full rich or not), I am getting a VERY noticeable engine stumble. I don't know if it would actually quit because I always push the throttle back in when it happens, and it smooths right back out. It's an attention getter, but I half-expect it now. As I get closer to my 40th hour, I need to get this corrected. It does not happen on every flight. In fact, it hasn't happened at all in the last five or so hours. Yesterday while pulling the power to enter the pattern, it did stumble. It was humid, and temps were in the high 30's/low 40's.
It has never done it while in the pattern shooting stop n go's. This sort of leads me to believe that it's a carb ice issue. After a 15-20 minute cruise set up (or longer), it occurs, but not all the time.
After my pattern entry, and subsequent take off's and landings at that airport, it did not do it in the pattern, and it didn't do it on my return leg to my home airport.
Thoughts?