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unsealed mid to sealed

Old 02-25-09, 01:39 AM
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unsealed mid to sealed

ok i have a unsealed mid bb
i would like to know how to take the old unsealed cups out and instal the new sealed one in [/B]
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Old 02-25-09, 01:55 AM
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Flathead and a hammer to take the old ones out. Piece of wood and a hammer to stick em in.
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Old 02-27-09, 06:13 PM
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Are you sure its a mid? I pretty sure there no such thing as an unsealed mid. Its just a standard size for a sealed american bearing.
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Old 03-03-09, 07:35 PM
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m i friend said he never seen a unsealed mid bb before
its about a 1 1/2 wide
heres a pic
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Picture 001.jpg (89.7 KB, 8 views)
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Old 03-03-09, 09:12 PM
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It's definitely unsealed and small, looks like it could be a mid.
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Old 03-04-09, 04:10 PM
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come to think of it now, i have seen unsealed mid. but it was on a little kids bike hahaaha. Juust take the cranks and bearings out, and pound the cups out with a hammer and a screw driver, and then tap the new ones in.
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Old 03-04-09, 08:02 PM
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ok thanks 4 the info
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Old 03-05-09, 03:25 AM
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Once the cranks and bearings are out of the way, give a it a good dousing with wd-40 and let it sit for 10 mins before you start tapping the cups out, they'll come out easier with less risk of damage to the bb shell.
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Old 03-05-09, 09:01 AM
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alright
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