Keep every valve and pushrod in order from front to back. The valves can be cleaned with a rotary wire brush (Bench wheel). They cannot be damaged this way, so clean them well. Wear a respirator or mask to avoid the (possibly lead containing deposits). Use a wire brush on a drill to clean the combustion chambers as well. De grease and get it ready to take to a machine shop for a valve grind. The guides and stems of the valves should have .001" clearance (max) measured with a micrometer, and ball micrometer. The sleeves can be bumped out from below with a wooden hardwood block and a hammer from below. Be sure to keep the rod big end from damaging the crank journal. You will need the rods, so getting the pistons out will be necessary. JimN
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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