Texguy
New Member
Hi I was in a rented 172 and the engine sputtered for 1 second. It was scary and I want to avoid it in the future if I did something wrong. Kinda sounded like "rrrrrrrrrrrr Putt Putt rrrrrrrrr."
More details: It was night, about 80-85 degrees on the ground. I went up to 5000. The Mixture knob was leaned out about 1 1/4 inches. I put the plane in a 150 fpm descent. At 4000 I enrichened the Mixture slightly so the knob was just 1 inch out. The hiccup was about 4 minutes later at 3500 feet. Reflexively I turned on the carb heat. The engine was fine from then on (I doubt the carb heat did any good). I was on the ground 5 minutes later.
Any guesses? Maybe the mixture was too rich? Maybe it wasn't my error - the plane is from the 1970s but seems decently maintained.
More details: It was night, about 80-85 degrees on the ground. I went up to 5000. The Mixture knob was leaned out about 1 1/4 inches. I put the plane in a 150 fpm descent. At 4000 I enrichened the Mixture slightly so the knob was just 1 inch out. The hiccup was about 4 minutes later at 3500 feet. Reflexively I turned on the carb heat. The engine was fine from then on (I doubt the carb heat did any good). I was on the ground 5 minutes later.
Any guesses? Maybe the mixture was too rich? Maybe it wasn't my error - the plane is from the 1970s but seems decently maintained.