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 - The Ferguson System Principal An implement cutting through the soil at a certain depth say eight inches requires a certain force or draft to pull it. Obviously that draft will increase if the implement runs deeper than eight inches, and decrease if it runs shallower. Why not use that draft fact to control the depth of work automatically? The draft forces are
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