Thanks for your response. Have you ever done one with the snap ring? It appears like the end of the camshaft is larger and the gear won't fit over that extra diameter. However, if that is true, I have no idea how they installed the gear in the first place. I tried pulling the gear but it is aluminum and I'm afraid to put any more pressure on it. It looks like the key is sheared and the gear has moved on the shaft but the key is now holding it from coming off. The reason I suspect this is when the timing mark on the flywheel is set right and the distributer rotor is on No. 1, the teeth with the indents on both gears are lined up but valves aren't closed. The crankshaft gear appears to be correct but the camshaft isn't in sync with everything else. I can see the indent for the key on the timing gear but can't see it on the camshaft. The tractor won't run when it is timed correctly but will run poorly if I advance the distributer about 30 degrees I had a good mechanic look at it and he also agreed that the timing gear must have moved on the camshaft. The valves should be closed for firing. Do you have any other thoughts on this. I replaced the distributer and coil and gave good spark. Thanks for your help. Russ
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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