Sure, you can do a DIY cylinder rebuild. However it doesn't seem as though seal kits are available any more for most Sherman equipment. Also there are multiple models of the Power Digger, you didn't say which one you have. Some manuals are still available if you know where to look online. Anyway cylinders of that era usually used stacks of V-packings for the piston and gland main seals. Cylinders also usually have a canned rod wiper and multiple O-rings (or similar such as square or quadrings). If you know how to accurately identify and measure, all of these things are available from a seal supplier such as Baum Hydraulics. The parts can also be matched up (usually) at your local hydraulic shop or industrial seal supplier. Additionally if you have de-chromed rods and a ratty bore a seal job may not seal, or may not last very long due to wear caused by roughness.
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Today's Featured Article - Tractor Profile: Allis-Chalmers Model G - by Staff. The first Allis-Chalmers Model G was produced in 1948 in Gasden, Alabama, and was designed for vegetable gardeners, small farms and landscape businesses. It is a small compact tractor that came with a complete line of implements especially tailored for its unique design. It featured a rear-mounted Continental N62 four-cylinder engine with a 2-3/8 x 3-1/2 inch bore and stroke. The rear-mounted engine provided traction for the rear wheels while at the same time gave the tractor operator a gre
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