Hi all, I picked this intake up for the generator, which had a 2-groove pulley (til it broke coming off...) and it had this baseplate under the carb. Anyone know what it is? Thanks, Mike Sent from my iPhone using The H.A.M.B. mobile app
It tells you what it is, it is a governor. It governs the revs, usually fitted to industrial engines.
Geez, and here I thought I knew how to read. Time to go back to school! Anyone know how it actually works?
Governors were fitted on many heavy duty trucks (with "granny" low gears, to prevent over-speeding the engine in the low gears. The basic principal was for the governor to sense a pre-determined RPM, and not allow the engine to acquire a higher RPM than the pre-determined limit. A number of different designs have been used over the years for the governor control mechanism. I have seen spring, air velocity, oil pressure and water pressure (on pumper firetrucks). Some governors were an integral part of the carburetor, others (generally called "sandwich governors") were installed between the carburetor and the intake manifold. The governor pictured is an example of the sandwich design. Generally, the sandwich governors have their own throttle plates, and often the throttle plates of the carburetor are locked in the wide open posi***ion, allowing the governor throttle plates to control engine speed. Today, a "chip" is used (listen to the NASCAR race broadcasters). Jon.
today, it's just written into the engine computer software.... Seeing a governor on an engine is how you tell it's from a bigger truck.
Interesting. I'll have to pull it apart and see how it all works. While I'm familiar with the idea of a governor, I guess I've never actually seen one for a large motor, just the little stops and such on small equipment. Thanks guys for the input! Mike
My Father owned a fleet of Taxi-cabs back in the 40s-50s,,he had governors on all cars ...you could never tell what kind is guy was taking a job driving taxis
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