The crankshaft needs to be out of the engine to get the sleeve installed properly. That's not something you want to try on an "in the block" seal change. I'm also not really sure there's enough room for a sleeve to work without doing the machining for the full circle lip seal. It's something to consider doing the next time you do a full rebuild, however.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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