Posted by used red MN on December 15, 2022 at 17:29:51 from (68.46.31.28):
In Reply to: Ford 640 pistons posted by Ramseyer35 on December 15, 2022 at 16:46:32:
Well you really like to go about things the hard way. Did you crack a repair manual at all? My first question is did you set the resting valve clearance? Looks like the spec is 0.015 inches. Easy way for a beginner is when one valve on a cylinder is all the way open set the clearance on the other one. Get a tire chalk or marker to mark them when completed or draw a diagram on paper 1 - 8 and mark them off as you go. You are using a feeler gauge and adjusting the screws and set nuts on the rocker arms until a wee bit of drag is pinching the feeler gauge blade. Do not put the valve cover and everything back together because that is the hot setting. So you need to run the tractor and warm it up. Then you will want to retorque the head bolts and then do your final valve set with the engine warm. And on second thought did you pull the camshaft out? It has to be in time with the crankshaft. Oh so many things to learn dear grasshopper! ; > ) Find you a you tube on settling the valves.
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