Love the Gravely's, I've a half a dozen on the farm, and have used them since the 60s.... Your end gap is waco, use 010 over rings and knurl the piston skirt, so it' doesn't tip. Clean the ring groves completely and accurately measure the side clearance. Rings seal by the expanding gasses getting behind them and forcing them against the cylinder. If carbon is present, the only sealing is with the ring tension which is not enough. Excess side clearance can be corrected by machining the ring grove square and installed a spacer, available from ring suppliers. New pistons, like available for the L are much cheaper then "restoring" the original. Pistons are forgiving for taper, but not out of roundness. Check carefully. If you don't belong to the Gravely Club, you're missing the boat. It's been around for over 20 years and it's magazine is excellent. Drop a note if you need help or info. Larry
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Today's Featured Article - Choosin, Mounting and Using a Bush Hog Type Mower - by Francis Robinson. Looking around at my new neighbors, most of whom are city raised and have recently acquired their first mini-farms of five to fifteen acres and also from reading questions ask at various discussion sites on the web it is frighteningly apparent that a great many guys (and a few gals) are learning by trial and error and mostly error how to use a very dangerous piece of farm equipment. It is also very apparent that these folks are getting a lot of very poor and often very dangerous advice fro
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