When cartridge bearings get nice and gritty (as they all do with use in the dirt). Just like ball and cup style, you can prolong their life with a bit of cleaning and fresh grease.
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| I don't carry a bottom bracket tool and after searching a few shops with no luck... I went rogue. Street side. You can leave the cups in the frame and tap out the cartridge carefully from the inside. |
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| Pick the seals off both sides and behold the nasty traffic yer bearings have been commuting in. |
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| Scrub 'em out with gasoline in an old ford hub cap with yer favorite toothbrush |
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| Mash in some fresh grease and replace the driving blinders |
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| The important part- yes, as always, it involves a hammer. I found this ancient crown race that is the exact outer diameter of the cartridge. Its best to reseat the press-fit pushing on the outer race of the bearing. Tap that whirly duder back in... |
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| and go have a coffee! |
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