Minggu, 23 Februari 2014

Replaced lawn mower transmission pulley?




TonsofFun


I replaced the pulley on the transmission of my lawn mower to make it go faster since it was just kinda sitting around not doing anything anymore. It goes way faster then it did before, but it will only go fast for maybe 5 minutes or so, then when i try to go fast again it doesn't go nearly as fast. If i wait a long time like over night, then take it out the next day, it works just as good as before....i dont know why this is. any help is appreciated.


Answer
This makes no sense. Only if the engine is overheating it MIGHT be the cause of reduced performance.

I know that all lawn mower engines have a speed governor. You demand power and the throttle opens wide. As the engine RPM's come up, the governor closes the throttle down a little to reduce its power. If the engine should be forced to run overspeed the governor will close the throttle down till the engine comes under control.

I used to have a mini-bike when I was a kid. I hated that governor, so I bypassed it. I disconnected the linkage between it and the carburetor. I then hooked my throttle cable directly to the carburetor and had FULL control over its power. Not satisfied with its power and speed my best friend and I built a supercharger for it. AND IT WORKED. We swore it had more power and speed but it may just have been the psychosomatic affect of BELIEVING it was working better JUST because we did something to it.

The power the engine is capable of generating versus the work you are asking it to do will have an effect on overall performance. If you over-stress the engine you will likely burn it out. Changing the gear ratios is a good way of trial and error testing to find what works best. But there's a limit to how fast it can go.

Be creative; try building an electric bike or go-cart. Electric motors can spin MUCH faster than gasoline engines. The only disadvantage is milage, you won't go as far. I toyed around with the idea when I was a kid but back then I didn't have my engineering degree and solving that problem was beyond me. If ever any of my girls give me a grandson maybe I'll build him one. But that's years away.

G-day.

")

riding lawn mower transmission?




black crap


will it hurt my transmission to switch speeds without clutching.


Answer
Do you have a shift-on-the-fly mower? If you do it wont hurt. If you dont yeah youll break something in the transxle eventually.




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