Question; what is the proper valve adjustment for a 250? I am going to guess that it is a hyd cam and that I am not supposed to have any chatter while ging down the road. Thanks
You back the adjusting screw out till you get a small amount of play & tighten it down 3/4 turn. Be shure the valve is not opening or closeing. Those engines can get scored pistons & sound similar to valve noise.
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