Nice finish to the project, Brian. I'm beginning to learn that you just can't have too much flywheel. I think the lower compression ratio is also key to getting the engines to idle better.Compression ratio is 5:1---I don't think it needs it because of massive compression. It has more to do with all the pivoting joints and levers. This is not an engine that coasts very well, even with no spark plug in place.
j'aimerais telecharger les plans ,j'ai regardé au poste 192 mais je ne vois pas de lien ?? je ne comprend pas ,comment faire
Brian, if you recall I did ask if you had missed putting a vent hole in the cap. :hDe:One of the things I discovered, that I must tell you about. The way I made the gas tank filler cap, by using a threaded pipe nipple for the gas tank filler spout and a modified threaded pipe cap for a screw on lid works great. It gives you a much larger opening and a much better chance of filling the tank with gas without overfilling it, but there is one caveat. On my other engines, I did not put a vent hole in the fuel filler cap. I just loosened the cap half a turn to run the engines and that worked fine. On this new style of cap, the screw on cap has an internal tapered pipe thread, to match the outer pipe thread on the pipe nipple. The cap is heavy enough that with engine vibration, it will screw itself closed to the point where the engine can no longer draw fuel from the tank because of vacuum lock.--This was driving me crazy. My engine would run good for 5 minutes, then die out for no good reason.--Each time, I would check the filler cap on the gas tank and think "Huh!!! I must have forgotten to loosen that a bit after I filled it.!! Finally I figured it out---I did loosen it each time, but it would vibrate closed. I solved the issue by drilling a 0.039" hole through the center of the cap.