The process of joining two O.S 49 PI type II engines, has come to its end!
Apart from a bad start and a broken rear counterweight, everything went well. The engine at the moment is working at very rich settings to prevent any overheating and it will be leaned out gradually. Also there are some leaks that need to be address, but other than that, the engine starts right up, idles perfectly and has incredible throttle response considering the rich settings.It took me a while to finish it and the result is very rewarding. The final part of the twin rotary engine. It uses 2 x O.S Wankel 49pi II engines. It has a great flaw at the moment which I'm going to fix it at some point. The eccentric shaft is not hardened. I made it out of ck45 steel. It's very durable and can be used as a shaft just fine. However the lobes, as well as the front and rear of the shaft, spin inside 4 needle bearings in total. That means that the shaft will be chewed by those hardened needle bearing material. I need to harden the existing e-shaft, which is the wrong method since it's in its final dimensions, or make it all over again. The process is as follows: Turning on the lathe leaving it slighltly overised, quenching and then grinding. I don't feel very confident about the last two, but I'll try it. Any ideas on what material can use to avoid the hardening and grinding? Something that can be turned only with carbide I guess.
The process of joining two O.S 49 PI type II engines, has come to its end!
Apart from a bad start and a broken rear counterweight, everything went well. The engine at the moment is working at very rich settings to prevent any overheating and it will be leaned out gradually. Also there are some leaks that need to be address, but other than that, the engine starts right up, idles perfectly and has incredible throttle response considering the rich settings.It took me a while to finish it and the result is very rewarding. The final part of the twin rotary engine. It uses 2 x O.S Wankel 49pi II engines. It has a great flaw at the moment which I'm going to fix it at some point. The eccentric shaft is not hardened. I made it out of ck45 steel. It's very durable and can be used as a shaft just fine. However the lobes, as well as the front and rear of the shaft, spin inside 4 needle bearings in total. That means that the shaft will be chewed by those hardened needle bearing material. I need to harden the existing e-shaft, which is the wrong method since it's in its final dimensions, or make it all over again. The process is as follows: Turning on the lathe leaving it slighltly overised, quenching and then grinding. I don't feel very confident about the last two, but I'll try it. Any ideas on what material can use to avoid the hardening and grinding? Something that can be turned only with carbide I guess.
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