Campagnolo bottom bracket removal C record
07-20-21, 05:55 PM
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Campagnolo bottom bracket removal C record
This is an update for another thread.
I removed the arms!!!!
Came off pretty easy
Now...how to remove the BB.
Friend at the bike shop was not sure
Knows its Italian thread??
Here are some pics
3rd pic is what was on there
And again...thank you all for your help
Really...greatly appreciated
I removed the arms!!!!
Came off pretty easy
Now...how to remove the BB.
Friend at the bike shop was not sure
Knows its Italian thread??
Here are some pics
3rd pic is what was on there
And again...thank you all for your help
Really...greatly appreciated
07-20-21, 06:44 PM
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07-20-21, 09:08 PM
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...the adjustable cup, on the non drive side, is RH threaded and held in place by that lock ring (which is threaded the same way) .
Once you remove the lock ring (use a lock ring plier or hook spanner), you can figure out whether it's standard (English) or Italian by the diameter of the cup.
Or with Campy parts, the threading standard is often marked on the cups, somewhere.
The above photos gives you a method for removing the drive side (fixed) cup. But unless there's something srong with it, just clean it in place and reuse it with new grease.
...the adjustable cup, on the non drive side, is RH threaded and held in place by that lock ring (which is threaded the same way) .
Once you remove the lock ring (use a lock ring plier or hook spanner), you can figure out whether it's standard (English) or Italian by the diameter of the cup.
Or with Campy parts, the threading standard is often marked on the cups, somewhere.
The above photos gives you a method for removing the drive side (fixed) cup. But unless there's something srong with it, just clean it in place and reuse it with new grease.
07-20-21, 09:39 PM
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I 'm kind of surprised the bike shop doesn't know how to remove this. You need a Pin Spanner to remove the remove the adjustable cup.
Park tool image
Park tool image
I would avoid removing the fixed cup if possible, as it's usually a real bear between torque and possible corrosion/seizing. Bill showed a good setup to remove the cup if you really need to do so, like a frame resto.
Park tool image
Park tool image
I would avoid removing the fixed cup if possible, as it's usually a real bear between torque and possible corrosion/seizing. Bill showed a good setup to remove the cup if you really need to do so, like a frame resto.
07-21-21, 05:03 AM
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Thank you all
Really appreciate your help
This is a Campagnolo C record group
So the lock ring and spanner would loosen to the left?
Counter clockwise?
Thanks again
Really appreciate your help
This is a Campagnolo C record group
So the lock ring and spanner would loosen to the left?
Counter clockwise?
Thanks again
07-21-21, 05:28 AM
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Rotation on the non drive side is always the same regardless of the BB shell threading (internal threads). Righty tighty, lefty loosy.
Campagnolo BB normally mark the threading on the DS cup.
Campagnolo BB normally mark the threading on the DS cup.
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07-21-21, 06:02 AM
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If a BB isn't marked with the thread/pitch, measure the shell witdth. Tipically, an English BB is 68mm and Italian is 70mm.
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07-21-21, 06:10 AM
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07-21-21, 06:46 AM
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I believe 36 x 24 f in the first photo does indicate Italian threading
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07-21-21, 10:08 AM
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Thanks once again for all the great help, knowledge, expertise!!!
Really appreciate it.
I'll remove the non drive side as suggested and put new bb and grease.
Stay/be safe
Michael
Really appreciate it.
I'll remove the non drive side as suggested and put new bb and grease.
Stay/be safe
Michael
