brayski98
Well Known Member
I have an RV-6A with an O-320. Yesterday I went to go fly and after starting engine started, I turned off the electric fuel pump and the fuel pressure went to basically zero. The EIS gave a warning and the fuel pressure was between zero and 1. When I turned the electric back on it went to about 5 PSI. I taxied out and got gas and both fuel pumps seem to be working. I flew with no issues. I switched tanks and chalked it up to the fuel selector valve. But I had the same problem today. Switching tanks does nothing and with the electric pump on it?s fine. So to me everything points to the mechanical fuel pump. But looking for opinions from others. 2 fuel filters and no gascolator. Engine has just under 1000 hours on it and the plane is 25 years old. Thanks.