I got the electrical parts hooked up for my generator today, and finished up the EGR.
I welded on a stub of 1" tube to the muffler, cut slits in some flexible exhaust hose, and then clamped it on to the muffler tube with a hose clamp.
I drilled a bunch of holes for the exhaust to vent out, and the other end goes to a valve on the bottom of the reactor.
I got it up and running, and it really starts pretty well. Takes a minute or two of cranking to get the gas through all the lines - but it flared pretty much right away. I have been keeping the charcoal sealed up, so I think it has dried out now.
I put the pull starter back on, as the ratchet made bad noises - I think the jarring was bumping the latching mechanism over to reverse. Once I got a flare, it only took 2 pulls to get the engine to start. Gary: I get what you say about having better fine control with the air valve closer, but the response seems adequate, and I like not having the extra weight hanging on my carb. I ran it for 0.4 hours today, and played around a little bit with the valve settings. It seemed to rev up and down a bit every few minutes, and I would have to adjust the valves to keep it running smooth. Not sure what that means.
So, the engine seems to be more or less functional, the gasifier is working beautifully, but the alternator… well, all it does is turn. I was using a 1:1 pulley ratio, so it should have been spinning at about 2100-2500 rpm. I might try it again tomorrow with a larger pulley, and see if that fixes it.
This is the alternator I ordered. I am confused by the “Polarity: Negative” I think I may have hooked it up backwards! I saw a red insulator on the output stud and assumed that it must be positive - but the case is from a 12 volt alternator, they just swapped in a different regulator to make it function for 24 volts. I hope I didnt cook it.
Well, I will try reversing it tomorrow and see if that does it.