The hydraulic pump gears are narrower than the cam gear. The remaining parts of the cam teeth are enough to keep the camshaft turning.
Excessive loading on the hydraulic pump can cause the damage you see in the picture. Most likely the pump gear is a steel cut gear and the cam gear a cast iron gear. A hydraulic system that stays on high pressure will end up with those results.
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I’m handing him tools and he says, "give me that..." and I’ve already got it in his hand or "hand me that....."and I’ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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