I've run into a few briggs lawn mower engines with valve seat recession. They were flat heads and some times it was the intake valve.
I remember the old VW air cooled engines. They had no oil filters and you were to change the oil every 1500 miles and while you were at it, pop the valve covers off and adjust the valves. The VW was bad for burning valves and valve seat recession. BTW, we had lead in the gas too.
However, today's briggs and kohlers with overhead valves, it seems to be the opposite problem. The valve clearance increases, causes the compression to go up and it acts like you have a bad starter or a dead battery. I had to readjust the valves on 3 briggs this spring. I'm no rocket scientist, but I would think if one had valve seat recession on OHV engine, the valves would tighten up, not do the opposite.
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Today's Featured Article - Women and Tractors - by Teri Burkholder. The View from the Garage - Never a doubt, everything on our farm is a learning experience. I've been working very hard to get our two rundown Farmall A's sanded, primed , bondo�d, fiberglassed and painted before our big local tractor show called the Tulip Festival. My husband Ben came in the garage one rainy day to see if he could "help". Well if you knew Ben you wouldn't want him anywhere near your spray gun, fiberglass or bondo! So I pulled out the 2 old yucky looking magne
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