Briggs 8 HP Governor Problem
I have a Snapper RER with a 8 HP Briggs engine. This engine is a replacement engine that is 3 years old.
The Snapper has always been in a shed and is in very good shape for a 1985.
When I replaced the engine the throttle control cable never seemed to function properly from day one.
It seemed like when you slid the lever from high speed to the lowest speed setting in did not reduce the speed
in graduations, it was either fast or slow. After numerous attempts to adjust the cable I just gave up and used it
the way it was, besides 90 % of the time it was running at full speed to cut the grass.
Now this is when my problem began, recently in attempt to correct this condition I think I may have damaged the governor within the engine. I played around adjusting the governor lever arm and next thing I know the engine
Is screaming, I shut it down immediately. After several attempts to reduce the speed with no luck, I heard a bang from the engine, possibly part of the governor weights breaking off. IÂve spent countless hours trying to adjust but the engine still revs high no matter what I do, I always shut down immediately when this happens.
Here is what IÂve done countless times with no success. I move the governor shaft counter clockwise and hold it there. Then I loosen the nut holding the governor bracket to the shaft and push the bracket so that the throttle is in wide open position. Even with the governor at itÂs lowest setting the engine over revs, only way to slow it is to partially choke it. The engine does start easily even after hearing the bang noise and there are no leaks.
My question is, how does one determine if the governor is bad internally without tearing the engine apart.
When I turn the governor shaft coming from the engine it does turn freely and has itÂs stops both clockwise and counter clockwise. I was thinking to drain the oil tonight to see if there is any foreign matter, however, the parts may be too large to exit the drain plug, thus giving me incorrect diagnosis.
Any advise would be appreciated on how to diagnose or correct the problem.
walt2002
itzbinniceOriginal Author
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