I have a o360-A1A with Hartzell constant speed prop in an RV6. At max power the fuel flow is 19 to 20 gph which I think is too high. This is a new certified Lycoming engine that was purchased in 2002, stored for 9 years and run for the first time this summer. The engine runs smooth and I can lean it back and it will run LOP ( has one p-mag ). It has a MA4-5 carb p/n 10-4164-1 and the main jet is p/n 47-755 which has an orifice diameter of .125. I replaced the float per the SB and this had no effect on the FF. I believe the FF indication is accurate as the totalizer matches the fuel consumed. I was not the original purchaser but I do believe this carb is just as it came from the factory.
Does anyone else have this high a fuel flow with this setup?
Does anyone else have this high a fuel flow with this setup?