Posted by Bob Bancroft on May 01, 2016 at 13:01:03 from (67.142.162.20):
In Reply to: Dropped valve posted by big tee on May 01, 2016 at 11:37:18:
I was cruising along, in a big field for here(41 acres) nearly done chisel plowing it with my old Steiger, with a Cummins VT903, when all of a sudden it started shuddering, and lost power. No bad, loud noises! So, I limped it home. (Seemed like it took the rest of the day to get the little old mounted chisel on the 4020 and finish up!) I guessed at the cold cylinder, and took that head off. The top of a valve had dropped off, pounded on the piston a few times, and was stuck back up in its home seat, upside down! I considered not changing the piston. But even though the top of the piston was very thick, under one deeper mark, you could just make out a fracture on the underside of the piston. Had the head overhauled. Installed new piston. Then the next winter had the other head done.
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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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