I'm concerned with a fuel leak I've developed on my Cessna 172E in the past three weeks and appears to be coming from the carburetor. There is even some fuel in the air breather near the bottom. An A&P said it’s nothing to be concerned about and everything checked out good he said.
I'm extremely new to this area and don't think I should be seeing blue streaks on the front nose wheelpant and blue streaks coming from the carburetor and air breather filter. It is not a noticeable leak during engine running and appears to only be leaking after engine is shut down for just a short time afterward.
I have also noticed I have a 150 rpm loss at full power on the ground. It used to be almost 2400 rpm on ground and now it’s about 2250 rpm. For the record, it has been getting below freezing the past month and I noticed all this after we did a shortfield landing on a grass strip in Oklahoma.
I'm so concerned that I am scheduling the annual now instead of waiting two more months when it’s due and am also scheduling with a new A&P. What is your opinion? Or am I just being too cautious?