This may be of no help but in my 87 Lawn Chief, I went from a 12HP Briggs to a 18HP opposed twin Briggs and the main shaft and mounting bosses were the same. Well the mounting bosses might not have been the same but I do remember that my engine fit in place of the original with no drilling necesary. Not sure if the frame on my tractor had dual mounting bosses or if the bolt pattern was the same but I'm pretty sure that the bolt pattern was the same. But this is all with flat head engines, not the modern overhead valve engines.
Motor Swap - 15.5--16 or 17hp
I have a Dynamark(Murray) mower with a 15.5hp Tecumseh OHV engine. It is in great shape but has a blown motor. It was run dry of oil and i believe it snapped the connecting rod.
I want to put another motor on it. So my question is do Briggs and Stratton have the same bolt pattern for mounting as Tecumseh and how many shaft length/diameter variants are there in the 15hp - 17hp range? Or are they all pretty similar?
Thanks so much for the help, i'm a newbie here so i appreciate it.
Dave
I want to put another motor on it. So my question is do Briggs and Stratton have the same bolt pattern for mounting as Tecumseh and how many shaft length/diameter variants are there in the 15hp - 17hp range? Or are they all pretty similar?
Thanks so much for the help, i'm a newbie here so i appreciate it.
Dave
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