The valve clearance is .027 int and exhaust valves. If you do get those glow plugs out and find the end burned badly, that indicates a leaking nozzle. If end is burst, that indicates high voltage when glow plug is energized. That typically happens if you use a battery charger to boost. I would also pull timing window off side of pump and marks should align at right close to 1 degree before top dead center. If you could get your hand on a plastic window you could observe the automatic advance when running to be sure it is fully advancing at near 2100 rpm's. Been a long time since checking a speed advance on a 706 but think it is one and a half marks which is 3 pump degree or 6 engine. I could look it up if need be.
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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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