Project of the Month Winner!!!
Project of the Month Winner
- Jul 16, 2007
- Reaction score
As I mentioned earlier the governor weights and arms were supplied by Gail. Thanks again!
Thank you George. This makes sense. I will use this style for my next project.Hi Parksy,
I really can't answer your question. I have thought about it ever since I got interested in old engines, gas and steam. My best guess is that if two cams and pushrods were used and the governing mechanism was to still lock out the exhaust then the intake would be opening and closing and the piston would be blowing air back through it into the carb. In doing so the moving air would be taking fuel with it and spitting it out of the intake tract.
In this single actuator setup once the exhaust is open there is no vacuum so the intake never opens.
On these engines one has to remember that the carbs were very simple and did not have a variable throttle, until later, so they used the governor for basically speed and power control.
Actually quite ingenious when you look at the whole picture.