I pulled the spool out again, and discovered one mistake I made on reassembly last time. At the end of the bore that houses the return spring, there are TWO snap ring grooves. No telling what the outside one is for, except it is not the right one! Once I moved the snap ring to the inner groove, both positions spring return to center. I also built a new holder for the valve thingy opposite the pressure relief assembly, but that did not cure my "up but no down" problem. Still scratching my head but I think Areo has it right - the valve that I fixed probably makes it a power-up, gravity-down single spool valve. The cylinder will gravity down with a little weight when I use what should be the "power down" position on the valve. Any help would be appreciated on making this valve work both directions.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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