C172I avgas smell
Hi all....trying to track down a fuel smell. Can smell AVGAS at some very specific points in a flight. Firstly after taxiing for about 3-4 minutes (normally just as im running up)....within 30 seconds after takeoff and normally within about 2 minutes of landing (most prevalent during turbulence). Its not overwhelming, just a light wiff. At all other times there is no AVGAS smell.
Any common failure points on a C172 that people might know of? I've flown the plane for 200 hours without an increase or decrease in the problem.....im just sick of explaining its "always like that" to pax/people.