Lawn Tractor Engine Explosion


In Oct 2003, my wife was mowing rocks using the good tractor. Unfortunately, one rock seemed to create a disruption to the steady rhythm of the engine. The disruption started on a blade and carried through to the crankshaft via a belt. Apparently, one of the two pistons in the Briggs and Stratton Intek V-Twin was under the influence of an explosion just above, and had little ability to adjust to the slight pertubation of the crankshaft and its heavy flywheel. The mechanical disagreement was taken out on the connecting rod which connected the two.


  Here's what's left of the rod. Its still connected to the piston, which I will have to reuse. It seemed to have a big bash mark at the first break on the bottom of the rod in this picture. The rod is cast aluminum so I can see how it broke. Broken Connecting Rod

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