Next job was getting the front oil seal replaced. This was pretty easy with a decent puller. It took me all of an hour, including polishing up the sealing surface with some 600-grit paper.
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The old seal was pretty much stuffed and was definitely the source of the front end oil weep.
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New seal ready to go in...
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Naturally I don't rely on torque alone for anything this critical. A liberal dose of Loctite 262 was applied to ensure that the pulley won't come off until I (really really really) want it to.