ORIGINAL: meeksman
Ok guys, I need some help. I have a taurus 3.2 engine. Two weeks ago I started the engine and everything went fine. Today I went out to fly and the engine started fine. I let it warm up and then opened the throtle to full power...again everything fine. Then I taxied to the runway and made my flight check by again running up the engine to full power. This time the engine started missing bad and would not reach full power. some backfire and then it quit. I started it a few more time with the same results. MISSING when I advanced the throtle. I have checked everything. Low and High needle setting (open 1turn on low and 1 1/4 on high. The plug is very black and wet (new Plug)....PLEASE HELP.....
How about the battery and the power supply system to the ignition? Did you check the battery voltage under load? Based on your findings this is the most likely cause of your problems, IMO.. Is this a new battery, was it cycled and load tested?
It maybe possible the timing ring on the hub has managed to move. Let me know if you need help with ascertaining if the ring has moved.