I have an RV-8 with a 1500 hour since new 0-360 A1A engine. I fly in southern Indiana and most of the year it starts on the first or second blade. I use preheat on the engine below 40 degrees and most of the time even if in the 50’s.
I am having issues when traveling and the temp is 45-55 degrees- the plane will not try to fire. I do not have a primer installed (on the list for this winter). I have used the accelerator pump while turning the engine over 2-3 times careful not to flood the engine. I have not observed fuel from flooding. My question is why does there seem to be a spark issue between at 45-55 degrees that doesn’t exist when temps or preheat is used to get the engine temps above 55 degrees? Is the fuel not atomizing at the cooler temps? Maybe the primer solves the issue? I have two mechanical mags that have been timed and overhauled. I have a new FT230 battery (works great). The engine runs great and have no other issues. Any advice is appreciated.
Thanks
Phil
I am having issues when traveling and the temp is 45-55 degrees- the plane will not try to fire. I do not have a primer installed (on the list for this winter). I have used the accelerator pump while turning the engine over 2-3 times careful not to flood the engine. I have not observed fuel from flooding. My question is why does there seem to be a spark issue between at 45-55 degrees that doesn’t exist when temps or preheat is used to get the engine temps above 55 degrees? Is the fuel not atomizing at the cooler temps? Maybe the primer solves the issue? I have two mechanical mags that have been timed and overhauled. I have a new FT230 battery (works great). The engine runs great and have no other issues. Any advice is appreciated.
Thanks
Phil