Engine seals are pretty easy to remove and replace. Those seals are made of a thin metal outer ring that provides a friction fit to the engine and also an inner ring of rubber that the shaft turns on but provides a seal to keep the oil inside the engine. In my opinion they are designed to wear out and not mar or wear the crankshaft. My last replacement was on a command 20 engine and once the pto was removed at the engine, the seal was so worn it nearly fell out. I was prepared to either puncture the seal through the rubber and pull it out that way or to drill a small hole in the metal ring and insert a screw to pull it out that way. If I recall correctly the instructions stated to mount the new seal till it is just flush with the front of the shaft channel and to use a gasket type sealant around the outer edge of the new seal before putting it in. The new seal can be easily put in using an appropriate size socket and just tapping it in with a hammer being very careful not to dent the new seal. This procedure can be used anywhere you have seals, even in the rearend and axles.
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With my son, EricR Super 2084 with 54" mower, 451 blower. 2086 with 3 pt hitch, 54 inch deck, 551 blower, 54 in brinly blade. A 4 digit original w deck. A 70 with deck. 2 102s both with 42 in decks, one with creeper, 1 36 inch IH snow thrower CW36, 1 42 inch IH blade. 149 with mower. 2072 w 3 pt hitch, Johnny bucket, 60 in mower, 451 blower. Jacobson GT 10 with mower. DR Lawn vac tow behind,Home made lawn roller. Brinly cart, 2 off brand carts and 1 home made cart.
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