Carb Governor?

[leon bee]

I see these on ebay. Were they so if you drove a bread truck your boss could keep your speed dialed down? Or for stationary engines? I don't need one, just curious.

[ford38v8]

Yes on both accounts. One thing you sure don't need on a flathead is a governor!

[Kube]

I had placed one on a full restoration I'd done a few years ago, a '39 wagon in fact.
It was the proper governor for that year.
I removed the throttle plates so while it appeared functional, it was not.
Kind of an interesting piece that caught many folks attention.

[1952henry]

Not uncommon on 1.5 tons. Kept the driver from converting a v8 to a v7.

[flatford8]

I’ve got one on a stationary engine. It powered a water pump.......Mark

[40 Deluxe]

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Originally Posted by leon bee

I see these on ebay. Were they so if you drove a bread truck your boss could keep your speed dialed down? Or for stationary engines? I don't need one, just curious.

There were two types of governors; velocity type and load sensing type. The velocity type served only as a rev limiter. At or above a pre-determined RPM, the velocity of the air/fuel mix worked against a spring to partially close an auxiliary throttle below the carb to limit max RPM. These were the type primarily found on trucks.
The load sensing type was a separate belt or gear driven unit that maintained a constant pre-set RPM regardless of load, primarily for industrial/stationary use. On these the throttle lever did not go the carb, it went to the governor. A second lever connected to the carb. Spring tension worked against the force generated by centrifugal weights. The spring pulled the carb throttle plates open and as RPM increased, centrifugal force closed them. The two forces balanced each other out, resulting in a constant RPM whether your corn grinder was full of corn or running empty. (Besides blowing the engine, excessive RPM wound blow up your corn grinder!)

[Andy]

I had a factory correct govenor for a 55 Chevy V8. I took it to all the swap meets for 10 years. I finally sold it to a vendor across the isle a few years ago. We took pictures and celebrated.

[leon bee]

The one's with key locks look cool, I've seen some without. You could put a dummy one on and tell guys it was for when the wife drove the car.