Same tractor on the same dyno pull. Rated is taken at 540 pto rpm. Then lugged to max torque. Max is what the torque peaked at when the engine was lugged down. Not an actual HP number. Example. If the max reading was taken at 75% of rated speed when lugged down. Then the HP reading on the dyno dial needs to be multiplied by .75 to actually show HP. The two stroke had flat torque output. Didn't matter if it was 1200 or 2400rpm. The torque on the dyno was identical. The difference on the 830's indicated one with slow and limited governor response. Peak HP was different but once the rack finally moved to full open. The torque readings were similar.
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Today's Featured Article - Fasteners: The Nuts and Bolts of Nuts and Bolts - by Curtis Von Fange. The nuts and bolts of nuts and bolts is an interesting and essential piece of knowledge that applies to our older tractors. An improperly torqued capscrew on an engine head or a shear bolt that is too hard on the driving shaft of a bushog can create havoc and make an expensive and uncalled for repair. Let’s examine the purpose and design of these fasteners in order to ensure their proper use. Fasteners are probably one of the aspects of mechanics that is given the least amount of thought.
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