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Tractor Talk Discussion Forum

why'd they do that?

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sparkplug

12-28-2007 19:30:59




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why did john deere run the clutch on the H off the camshaft?? what was the advantage?




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ldj

12-28-2007 19:55:54




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 Re: why'd they do that? in reply to sparkplug, 12-28-2007 19:30:59  
My guess and it is only a guess. The small engine couldn't make enough power without turning high rpm. Using the cam is like a gear reduction and it keeps belt pulley at proper speed. The little H engine turned high rpm for John Deeres of that day. Any one have a better guess or have facts?
L.D.



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RobMD

12-28-2007 19:53:09




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 Re: why'd they do that? in reply to sparkplug, 12-28-2007 19:30:59  
because the H only had horsepower in the lower two digits at 1400 RPM's, it was more feasible to run the pulley off the cam shaft BOTH to reduce the speed of the belt AND to increase available torque.



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sparkplug

12-29-2007 07:52:47




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 Re: why'd they do that? in reply to RobMD, 12-28-2007 19:53:09  
yeah i was thinking that, but wasn't sure. thanks for the input!



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