Its almost always worth a try to fix something, even if you fail you probably will have still learned something (how it was made, how it works, how it fails, etc.). Disassembly and investigation is really the last bit of worth you can get out of something and sometimes you will have the accomplishment of fixing it!
That looks like an Shimano LP-26. You can unscrew the other end and take it apart, service it and rebuild. I've done this. The press fit part can be just left in place and the whole axel pulled out from that one side 👍
Rj you inspired me into the inner workings on bicycles and through your videos i have learned and gained alot of skillls and technique. I am now working as an actual bicycle technician in one of my local bike shops here in vancouver!! Would be pretty awesome to see you doing overhauls on the complete bike , strip down and reassemble and seein you tackle some tricky things like seized seatpost, etc. its great to see you uploading once in a while. cant wait to see what you have in store behind the scenes.
That’s not a fail at all. Thanks to your effort, we know what can potentially be inside a cartridge bb. Now that it’s wrecked for sure, it would be interesting to see what it takes to press the axle out of the housing, or to cut it in half.
there's plenty of cartridge bbs that can be service, I've done a tone working as a professional bike mechanic, but, in hare occasions (mostly shimano ones), you can't open it. I really like you attitude towards the question "shouldn't you just replace it?", as you said, in many realities people can't invest in new parts. Love your videos RJ, you have helped me a lot troughout the years! (I also learned how to service a freewheel with you)
Some of those have a 13/16 nut and serrated washer against a cone on non-drive side. A plastic cap covering the lock nut is the indicator. You probably already know that. I've successfully rebuilt three of them recently. That one looks very similar. Definitely worth the attempt.
Naw, support the cup in a vice and hammer the spindle out(if you don't have a press). I cut the BB holder from a old wrecked bike frame to screw in and hold the cups. The cup will come off, the bearing are another story. Sometimes they have to be cut off. It is worth the 20 minutes of work if the spindle length is hard to find.
I've drilled holes in the side of sealed bottom brackets with a carbide center drill and pumped them full of grease, purging out the old stuff until clean grease comes out. It's worked well. I use a shop vac to suck up the chips as I go in an attempt to minimize them getting inside. A needle on the grease gun seals up well enough against the hole.
Here’s a tip: The non-drive side cup of some BBs fits perfectly with the DT Swiss freehub body seal (HSOXXX00N1031S) and can be used as a driver to reinstall the seal into the hub body after servicing, instead of using the original tool (HXTXXX00N5026S).
I’ve had this same problem with Shimano BBs. Some manufacturers use a setup with a 17 mm spindle; others, a 16 mm. The 17s are nice because they can be repurposed for Lambert/Viscount & Klein press-fit BBs with a pair of 6003 bearings. Best of luck with the head cold 😅
I am watching this video from Russia and have great respect for what RJ The Bike Guy is doing. It seems to me that I went back to the 70s of the last century, when I was repairing my road bike as a teenager. Russian bicycle workshops have not repair bicycle components for a long time, because it does not make economic sense, the cost of an hour of work now is much higher than the price of new Chinese bicycle components.
Never know until you try. Cool to see. Its such a strong piece of steel and,basic design that its too bad it can't be rebuilt. Seems like there ought to be a way.
I've found that some square taper cartridge BBs with less common axle lengths are becoming difficult to find, so rebuilding is a good option. I have a worn out FSA BB with sealed bearings, as in your earlier video, so I'll attempt to follow your rebuild process. Thanks.
Looks like once you got the seals off, you could try to flush and clean it out then pump some grease into it. I wonder if an ultrasonic cleaner would work? Of course there's no adjustment. Now replacing bottom brackets is a bit challenge in that one has to take into account BB width and spindle length. Good luck!
If you've got those seals off you might still flush the old grease/dirt out and squirt some fresh in, without a replacement at hand probably still a good improvement.
Yeah, shimano BBs can't be opened for rebuild .. Unfortunetley, the high class bb un 55 is not on the market any more. They have cheaper replacement but the old ones last forever.
I attempted the same with a BB-UN51 that had some play, it was also press-fit together. That's why I'm much more likely to salvage cup and cone BBs instead of the sealed units.
Hei RJ do a followup on that BB repair and try first to flush it with wd40 and then run thick grade motor oil into it and see how it is after. Then regardless if it works or not do goofies recommendation of hammering the axle out and see if you can do a standard repair that way. That would be great learning for all of us!
Hi RJ! Do you think a non invasive lubricant flush and replacement would have been a better solution in this case, maybe after bathing the whole body in some rust converter and/or infrared cleaner?
Dunk it & flush it in some petrol & then regrease the bearing races,thats what i did with mine,i had access from inside the bearings as well as the metal tube was moveable to the side to grease inside of the bearing race.
Glad you did this so I didn't lol. One of those thing better to buy new. I'm with ya though I just replaced the beari gs in my peafls I've had for 10 yrs . New ones are expensive. I only buy new chains and cables and brake pads
For more bike repair videos hit the subscribe button 🛑 and click the notification bell ► bit.ly/SubRJTheBikeGuy
Its almost always worth a try to fix something, even if you fail you probably will have still learned something (how it was made, how it works, how it fails, etc.). Disassembly and investigation is really the last bit of worth you can get out of something and sometimes you will have the accomplishment of fixing it!
Well said! I love when something breaks, I get a chance to take it apart with no real risk! Thanks for sharing the process!
Thanks for covering this topic. On a cold winter day, with a hot cup of coffee. Working on just such a project, makes a relaxing day.
Your one of the best, thanks AJ.
That looks like an Shimano LP-26. You can unscrew the other end and take it apart, service it and rebuild. I've done this. The press fit part can be just left in place and the whole axel pulled out from that one side 👍
Rj you inspired me into the inner workings on bicycles and through your videos i have learned and gained alot of skillls and technique. I am now working as an actual bicycle technician in one of my local bike shops here in vancouver!!
Would be pretty awesome to see you doing overhauls on the complete bike , strip down and reassemble and seein you tackle some tricky things like seized seatpost, etc. its great to see you uploading once in a while. cant wait to see what you have in store behind the scenes.
That’s not a fail at all. Thanks to your effort, we know what can potentially be inside a cartridge bb.
Now that it’s wrecked for sure, it would be interesting to see what it takes to press the axle out of the housing, or to cut it in half.
This followup video is the reason I'm subscribing. I like this kind of authenticity. Watching the overhaul/rebuild BB video next.
Appreciate it! Learning how to fix something is always valuable, as well as keeping stuff out of the landfill.
there's plenty of cartridge bbs that can be service, I've done a tone working as a professional bike mechanic, but, in hare occasions (mostly shimano ones), you can't open it. I really like you attitude towards the question "shouldn't you just replace it?", as you said, in many realities people can't invest in new parts. Love your videos RJ, you have helped me a lot troughout the years! (I also learned how to service a freewheel with you)
Some of those have a 13/16 nut and serrated washer against a cone on non-drive side. A plastic cap covering the lock nut is the indicator. You probably already know that. I've successfully rebuilt three of them recently. That one looks very similar. Definitely worth the attempt.
Like this:
ruclips.net/video/lar7mIMmTRE/видео.html
But this BB is not that.
Naw, support the cup in a vice and hammer the spindle out(if you don't have a press).
I cut the BB holder from a old wrecked bike frame to screw in and hold the cups.
The cup will come off, the bearing are another story.
Sometimes they have to be cut off. It is worth the 20 minutes of work if the spindle length is hard to find.
I've drilled holes in the side of sealed bottom brackets with a carbide center drill and pumped them full of grease, purging out the old stuff until clean grease comes out. It's worked well. I use a shop vac to suck up the chips as I go in an attempt to minimize them getting inside. A needle on the grease gun seals up well enough against the hole.
Thanks RJ for posting the links to the other two non-fail videos- super helpful!
Here’s a tip: The non-drive side cup of some BBs fits perfectly with the DT Swiss freehub body seal (HSOXXX00N1031S) and can be used as a driver to reinstall the seal into the hub body after servicing, instead of using the original tool (HXTXXX00N5026S).
I work on Hydraulic pumps etc, when that type of Bearing is knackered it's knackered. New Bearings is the only solution.
I am watching this while wearing my RJ The Bike Guy- T-shirt!
I’ve had this same problem with Shimano BBs. Some manufacturers use a setup with a 17 mm spindle; others, a 16 mm. The 17s are nice because they can be repurposed for Lambert/Viscount & Klein press-fit BBs with a pair of 6003 bearings. Best of luck with the head cold 😅
Ty for continuing to upload 😊
I am watching this video from Russia and have great respect for what RJ The Bike Guy is doing. It seems to me that I went back to the 70s of the last century, when I was repairing my road bike as a teenager. Russian bicycle workshops have not repair bicycle components for a long time, because it does not make economic sense, the cost of an hour of work now is much higher than the price of new Chinese bicycle components.
Never know until you try.
Cool to see. Its such a strong piece of steel and,basic design that its too bad it can't be rebuilt. Seems like there ought to be a way.
I've found that some square taper cartridge BBs with less common axle lengths are becoming difficult to find, so rebuilding is a good option. I have a worn out FSA BB with sealed bearings, as in your earlier video, so I'll attempt to follow your rebuild process. Thanks.
Looks like once you got the seals off, you could try to flush and clean it out then pump some grease into it. I wonder if an ultrasonic cleaner would work? Of course there's no adjustment. Now replacing bottom brackets is a bit challenge in that one has to take into account BB width and spindle length. Good luck!
At least you tried. Thank you for the video!
If you've got those seals off you might still flush the old grease/dirt out and squirt some fresh in, without a replacement at hand probably still a good improvement.
Yeah, shimano BBs can't be opened for rebuild .. Unfortunetley, the high class bb un 55 is not on the market any more. They have cheaper replacement but the old ones last forever.
Just tinker I've always loved it
Thanks for sharing!
I attempted the same with a BB-UN51 that had some play, it was also press-fit together. That's why I'm much more likely to salvage cup and cone BBs instead of the sealed units.
Hei RJ do a followup on that BB repair and try first to flush it with wd40 and then run thick grade motor oil into it and see how it is after. Then regardless if it works or not do goofies recommendation of hammering the axle out and see if you can do a standard repair that way. That would be great learning for all of us!
Hey! Now you have a cycling paper weight 🙂
Hi RJ! Do you think a non invasive lubricant flush and replacement would have been a better solution in this case, maybe after bathing the whole body in some rust converter and/or infrared cleaner?
Dunk it & flush it in some petrol & then regrease the bearing races,thats what i did with mine,i had access from inside the bearings as well as the metal tube was moveable to the side to grease inside of the bearing race.
The old cup and cone bottom brackets you could replace the bearings
Not only might you fix something if it is broken, you can learn stuff even if you can't fix it. Knowledge salted away for "next time".
Getting access to the bearings would allow for fresh grease to be forced in, might improve the BB.
Yes but if has too much play thay will just reduce the life of the sprocket and the chain
Can it be pressed out if one has access to a press?
How many miles did you have on it?
How about a trial of cleaning with an ultrasonic cleaner, then inject grease around the axle and replace the seals?
Glad you did this so I didn't lol. One of those thing better to buy new. I'm with ya though I just replaced the beari gs in my peafls I've had for 10 yrs . New ones are expensive. I only buy new chains and cables and brake pads
HI, I cut one open years ago....
I didn't get even that far with a Phil bb! There is no threaded sleeve on the drive side and the shell is so thin. Nothing to press against.
I’m same way…I like to at least make the attempt to learn how to fix things…nothing to lose.
Pero es fácil. Se lo deja en remojo con keroseno una noche,se lo enjuaga y aceita normal.
Most times I lose, sometimes I win.
Nice
If curious I try to tear apart everything not working before I throw it away
Neat
Just pack it with vinegar for a day or so, wd 40 blow, finish drying it in the sun and pressure fill it with grease.
I would say maybe flush it with WD-40 and air blast it with a compressor, then fill it with grease as best you can