A little, but not much. I was playing with the needle and butterfly a couple of weeks ago and had it slower, but that made it sensitive to how much fuel was in the tank - how high the venturi had to lift fuel up into the carburetter. When the tank was full it was running too rich, and too lean when emptying. I've settled for a slightly faster running speed so the suction is strong enough that the needle jet position is the dominant factor in the system.
No, this engine is throttle governed. The assembly on the inside of the top flywheel is the governor weights and slip ring, and you can see the throttle rod running from there to the front of the engine.
Two-horsepower four-stroke throttle-governed engine made by H.V. McKay Machinery Works of Sunshine, Victoria, Australia. Possibly late 20s or early 30s. Runs on petrol or naphtha, but can probably run on paraffin if tuned right.
ok cool, still a very nice engine
anthacdc 2 years ago
A little, but not much. I was playing with the needle and butterfly a couple of weeks ago and had it slower, but that made it sensitive to how much fuel was in the tank - how high the venturi had to lift fuel up into the carburetter. When the tank was full it was running too rich, and too lean when emptying. I've settled for a slightly faster running speed so the suction is strong enough that the needle jet position is the dominant factor in the system.
lgftsa 2 years ago
Thanks for the info, Can it run any slower than it did in the video?
anthacdc 2 years ago
No, this engine is throttle governed. The assembly on the inside of the top flywheel is the governor weights and slip ring, and you can see the throttle rod running from there to the front of the engine.
lgftsa 2 years ago
this isnt a hit and miss is it?
anthacdc 2 years ago
Two-horsepower four-stroke throttle-governed engine made by H.V. McKay Machinery Works of Sunshine, Victoria, Australia. Possibly late 20s or early 30s. Runs on petrol or naphtha, but can probably run on paraffin if tuned right.
douro20 4 years ago