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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 07-27-07, 08:26 PM   #1
edwardh1
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Zerk grease fitting on bottom bracket

Can you drill and tap the bottom bracket and install a zerk fitting to let you grease it without disassembly?
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Old 07-27-07, 09:17 PM   #2
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Sure but you'd knock it off on the first rock.
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Old 07-27-07, 09:28 PM   #3
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Not to mention the half-pound of unnecessary grease you'd be squeezing into your BB everytime you did a lube job.
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Old 07-27-07, 11:22 PM   #4
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But think of all the rustproofing the seat tube is going to get as the grease fills it up.

In a word, it doesn't work that way. The grease will just go into all the various tubes.
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Old 07-28-07, 01:39 AM   #5
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It has been done, with a sleeve blocking off the various frame tubes and minimising the amount of grease in the bottom bracket.
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Old 07-28-07, 01:41 AM   #6
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DH rigs have them in the suspension pivots...
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Old 07-28-07, 05:46 AM   #7
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If the bottom bracket is a cartridge type as almost all of the current ones are, external greasing will do no good. It will, however, eventually fill all of the other tubes with grease.
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Old 07-28-07, 09:57 AM   #8
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My '59 Carlton has one. It's just for looks now, since it has a cartridge bottom bracket. I don't thing there's much chance that I'll "knock it off on the first rock".
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Old 07-28-07, 11:10 AM   #9
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dirtdrop, i hope you dont take that beautiful bike anywere near rocks! Got pics of the rest of the bike?
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Old 07-28-07, 02:01 PM   #10
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dirtdrop, i hope you dont take that beautiful bike anywere near rocks! Got pics of the rest of the bike?
Just click the picture.
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Old 07-28-07, 02:18 PM   #11
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Just click the picture.
e.g http://good-times.webshots.com/album/559341390NROHtj
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Old 07-28-07, 07:06 PM   #12
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Fine looking bike. Nice job!
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Old 07-29-07, 05:19 PM   #13
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Sweet old bike. Love the 3-pin crank!
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