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2009 yz450f water pump seals

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So i am replacing both of the seals, Im just curious what would cause the inner one to shred like that. The bearing is good, so is the shaft, no grooving or corrosion.

Did the little spring iside it do all that damage? Could this be why my bike was smoking coolant?

I was barely losing coolant it seemed. I maybe put 20 mins on the bike from when the white smoke started. (had to get back to camp) Then it sat for a couple week because i was waiting for the seals. FYI the head gasket is new as the piston/rings was recently replaced.20170413_234306.jpg20170413_234300.jpg


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