I got my very own POSA FUEL carb today from, of all places,
. More specifically the Isle of Crete. This POSA was one of a group that was converted at the factory for use in light aircraft. It has a fuel mixture valve and a rod operated air slide with no slide return spring. It is a 32mm throat and has only had about 150 hours of run time total use. I think I have the basis for a good fuel/air mixture device that is super simple. With the bits of tuning information I have turned up from the light aircraft people this POSA should do everything I need. It won’t be a quick fix and I will have a steep learning curve but the potential is there. This should provide the means to make more precise tuning adjustments for varying conditions much quicker than with a conventional carb. Greece
Just in case the term simple for a carburetor might seem to be overstated, here is the POSA Fuel completely disassembled. Prior to having it in hand I had only read the patent and looked over the patent drawings. It took all of five minutes to take it all apart. There is one casket and two o-rings total for the whole carb. Very pleased I was able to get one in such good condition and with mixture control. This of course won’t be the last time I’ll be talking about the POSA, I can tell you! Of course if this thing really drives me nuts I can always drop back and use the AMAL Mark II. Nice to know I have a reserve.