Removing a Very STUCK Bottom Bracket (Square Taper)

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Bottom brackets can be seized or stubborn over time, especially when water gets into the frame or rusting in bottom bracket area.
Remove both the crank arms with the crank puller.
The square taper bottom bracket contains the cup and unit and taking the cup out first is preferable.
1994 Trek 930 SHX Singletrack - Shimano BB-LP30 / 73mm / 118mm Axle
1996 Specialized Ground Control - Shimano BB-LP26 / 73mm / 107mm Axle
The plastic or metal cups can be on either sides, so keep that in mind and identify your bottom bracket first. Like the Trek 930, the cup is on the drive side. On the other hand, the Specialized Ground Control has its cup on the non-drive side.
Turn it counter clockwise to remove.
The cup is removed, but not the unit on the other side.
Heating up the bottom bracket could help to break it loose.
Bring out a headset cap and crank arm fixing bolt.
Insert the bottom bracket tool, headset cap and crank arm fixing bolt to secure the tool in place.
The headset cap is from a quill stem converter.
If the crank bolt is too short, you’ll then need to find a M7 bolt in your local utility store but it could be hard to find.
Turn it clockwise with the wrench.
The adjustable wrench didn’t work out, so next step is to use the breaker bar with 32mm socket.
Clean the bottom bracket shell and then lubricate the threads and area.
A Hollowtech II bottom bracket will be installed.
More BB removal videos:
Worth Upgrading to Hollowtech II? • Worth Upgrading to Hol...
Replacing Square Taper Bottom Bracket To Hollowtech II • Replacing Square Taper...
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4 окт 2024

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Комментарии : 87

@nancybryson5488 2 месяца назад

I want to thank you so so so much. I had been trying to use a socket wrench on the removal tool to loosen the non-drive side. No matter how hard I tried, nothing. Then I saw you use a big wrench, which allowed you to hold everything tightly in place with your free hand. I tried that, and it broke free. Blessings to you!

@toddsadowski5074 21 день назад

Dude!!! You are a genius!!! I tried for several hours with breaker bars, heat, penetrant, impact gun and couldn’t get it loose… part of the issue was keeping the tool seated in the splines… I went to RU-vid again to try to find another hack or trick of some sort… I came across this video and thought, this looks like the key! … I had the tools but needed a longer screw… I went to Ace Hardware and got the proper length screw then screwed the tool onto the shaft… I heated the metal then had my wife stand one the front of bike while I pushed down hard on the breaker bar… then like a miracle the bottom bracket turned!!! Great Success! Thank you thank you thank! I have hundreds of dollars in parts coming to restore this old bike and I was worried I would never get this off and I’d have to pitch the bike… this made my weekend!!!

@InCountry6970 2 года назад

The is the best, simplest and no BS video on the BB removal, superb job, thanks

@joehart3826 Год назад

Simplest is to use an impact gun, but nevertheless this is a quality method.

@zeez4178 7 месяцев назад

@@joehart3826impact guns are anything but simple

@ridethecliche247 2 года назад

This is the gift that keeps on giving. Wouldn't have occurred to me to put a bolt on there! I put a bolt on, hit it with my heat gun, and stomped on it. BOOM! Finally got it loose. Thanks for saving me a lot of frustration!

@daveed4475 Год назад

Outstanding! Thank you! Look forward to attacking this task afresh tomorrow with what I just learned.

@Butterfly07949 2 года назад

Wow so simple and effective. First video I have come across that tackles a seized bottom bracket and to use a bolt and washer to hold the tool on, why didn't I think of that. Excellent video thanks for uploading!

@TheAfricanLion69 2 года назад

2:30 what !! Shit, why didn't I think of this?, You saved me !! I was in trouble, I couldn't open the bottom bracket with that tool alone, it always fell off, It was so clogged, I couldn't move it, but with your idea, I can open it. Thank you very much .

@markw8139 Год назад

Hi Sir. REALLY helpful! Fantastic idea using the headset cup. I had to drill out the hole of a spare one I had to 8mm, but it worked with the breaker bar! Thanks! 😊

@angusross7922 2 года назад

Amazing wish I’d watch this a week ago!

@peterjones6321 2 года назад

Good, basic instructions. I have just followed that to successfully remove my BB cup. I did give it a squirt of Plusgas penetration oil to ease its progress beforehand. It genuinely seems to help on all sticky threads.

@Falestal Год назад

I just did this after seeing your video and it saved me so much time and frustration 👍😃

@astarothgr 2 года назад

Oh my, this is what I'll be facing in the very near future.. time to tool up!

@cm9748 Месяц назад

Nice . Some of these tricks saved me ... Thanks

@vmartinez71 Год назад

For me, spraying some penetrating oil onto both sides at least 1 hr before attempting to remove helps

@billmarsh1971 5 месяцев назад

If time allows, leave overnight

@ronaldandrews283 3 месяца назад

I had to leave overnight for multiple nights @Cassidy127

@qrs_tuv1925 2 года назад

Excellent. Thank you so much for the effort and information.

@arrosconpollo1 Год назад

Excellent video! Thank you! Next step, get out my heat gun.

@DanKronvold Год назад

Dear sir Thank you so much for this video. Just what I needed when about giving up. Kind regards

@cezrok5405 4 месяца назад

The bolt and top cap as washer is brilliant and the 32mm this is a hidden secret of top mechanics !😮

@karenjones5858 Год назад

Great explanation. Your method worked.

@noahmeloche Год назад

This is a great trick. My only issue now is to get a stuck bb out with a broken spindle 🤦‍♂️

@nzo_6543 Год назад

Mostly headset caps are gonna fit with M5 screw, just get a big washer that fits your crank bolt instead of the headset cap, I removed mine firstly on the non drive side ( the cup ) to flood it with WD-40 or oil to make the drive side ( unit ) easier to unscrew, and I broken loose the drive side with the adjustable wrench with a long pipe

@w6qd Год назад

You're the best Danyo, thanks.

@bmxscape 2 месяца назад

well mine was a lot more stuck. what worked for me was flap wheeling the face of the thing until all tool fittings were gone and it was flush with the bottom bracket shell. then using a die grinder with a burr bit i carved through the race in 2 places on opposite sides. a hack saw would be great here in theory but the race is so hard, all the teeth on your hacksaw just wear down in seconds. so after turning the threaded race into 2 parts, you are able to pry it away from the threads. this leaves damage in 2 places in the bottom bracket threads but its better than throwing the bike in the garbage.

@davidmullarkey7019 Год назад

Great video, very helpful and 'real world' - thank you:)

@briaghansjjs 2 месяца назад

absolute legend

@venuslnd 2 года назад

Wow. That thing stuck really good

@MrWBB63 5 дней назад

Thanks! Perfect.

@CandidZulu 10 месяцев назад

I used a lever as long as the down tube t get it off, and need to clean up the threads. I thing using a Bafang motor earlier was very rough on the BB!

@lereveure Год назад

very instructive!! thanks!

@rastas_4221 10 месяцев назад

WD-40 bath is also helpful. Set the frame flat side ways and let the oil sit on it for hours.

@n.mcneil4066 3 месяца назад

This seems to be a common problem. Wouldn't lubing the threads with anti seize compound facilitate future disassembly?

@fernanaquino2482 2 года назад

Must try this on my stubborn bb

@RENZA722 2 года назад

This video helped me out. Thank you!

@plastikbertrand 2 года назад

Thank you for that 👍

@lukelipson2130 Год назад

hey i used a Park Took BBT-22 and it snapped in half. How should i remove it if it’s that stuck

@NCBSScienceWriting 2 года назад

Fantastic!

@jeffk2481 4 месяца назад

Very satisfying

@samm2392 Месяц назад

Thats the way, but my crank arms are way to stubborn and won't budge, snapping a crank puller twist bolt.

@SteveLyons57 9 месяцев назад

Appreciate the tips 👍

@Paul-qs1li 2 года назад

Very helpful.. Thank you

@jeremyabbott2829 2 года назад

Who makes that shallow bottom bracket tool? The one I have is like 3 times as long so I can do this.

@JohnSmith-ox7xc 2 года назад

@ 3:00 You said M7 bolt. I don't know if that's correct. In my case, I used a m8 bolt x 1.0 pitch (pitch is important as 1.25 pitch would not work) and 50mm long to secure a BB removal tool to the taper (with a 3mm spacer)

@DanyoSports 2 года назад

It was a M7 bolt in my case, I’ve tried the M6 and M8 bolts but none of them fits. Good to know about the thread pitch, thanks for sharing.

@JohnSmith-ox7xc 2 года назад

@@DanyoSports Interesting. I thought the crank bolts would be universal in diameter and pitch. I think it's also worth pointing out that if both sides are tight, take the cup side off first otherwise you won't have a spindle to screw onto and make sure to loosen the bolt a little on cup side as you untighten so you have space to allow the tool to back out.

@shelleyshell1150 2 года назад

You know all the tricks 😉!!

@philosophicalutopia9297 2 года назад

I bought a new bike to put my Bafang mid-motor kit on it. I got thr cranks off. Can get that tool to stay in the grooves. Im stripping the threads. I might have to carefully drill it out and use tiny hacksaw. I just want to get shimano bracket set out for my motor.

@ep3hop740 Год назад

Brilliant 👏

@stacybuchkowsky6376 Год назад

Good tips

@poodleupbeat5677 2 года назад

Any tips on removing a uneven bottom bracket

@actioncamsports Год назад

WD-40, PB Blaster, Liquid Wrench are your friends in situations like this

@DrDingus Год назад

What is meant by 'drive-side' and non-drive side?

@DistinktMind Год назад

drive side is the side with gearing, usually the right side of the bike

@joanyblaise5676 Год назад

Yes, drive side is the right hand side of the bike, and non-drive side is the left hand side of the bike.

@Loudes012 2 года назад

Yeah got one side out. Could WD-40 do the job along with using the crank nut and breaker bar?

@DanyoSports 2 года назад

Sure, I would give it a try.

@aiwarz Год назад

thats my todays challenge lmao

@BURIBURI90 2 месяца назад

Wrost bottom bracket is square tapers i dont like but i have i need to change but it cost very very high

@slugzkea Год назад

So, clockwise to loosen?

@joehart3826 Год назад

Drive side yes

@lunam7249 Год назад

you must heat the bottom bracket only!!

@vmartinez71 Год назад

absolutely correct. Heat makes metal expand

@lunam7249 Год назад

@@vmartinez71 learned it from an old man who lives in a car junk yard

@savoirfaire8979 Год назад

I hate dealing with square taper bottom brackets. They need to make hollowtech-style standard.

@inno9165 9 месяцев назад

Where did u get the headset cap from i can’t find any

@MrDoboz 7 месяцев назад

yeah if I had a breaker bar with a socket for my bb tool I wouldn't be searching for this video lmao

@bmxscape 2 месяца назад

even with all the specialized proper tools, some are far too stuck to be removed conventionally. i work in a bike shop and many times have had to use grinders, saws, torches etc ALONG with the proper tools and enough leverage

@menanagy4457 2 года назад

Thanks for this video i'm going to prepare Can i use a 18 inch breaker bar or should i use bigger for the drive side And what is yours ?

@DanyoSports 2 года назад

Yes, it should work fine, mine is a 24 inch.

@aioaneiflorin1775 2 года назад

for you it was easy, i have the tool to detach the arm from the bottom bracket but the thread failed so now no tool can help me, what do I do?

@nzo_6543 Год назад

Bro did you only hammer it with a screwdriver???

@nzo_6543 Год назад

Well then go weld it or go to a machine shop to remove it

@aioaneiflorin1775 Год назад

@@nzo_6543 i finally used a long piece of metal and put it between the arm the frame on one side the another thing on the opposite side (180deg) and i finally pulled it out, I first used a hammer and a screwdriver but it didnt even flinch..

@nzo_6543 Год назад

@@aioaneiflorin1775 if your non drive side is easy to remove then soak it with WD-40, I think it makes the drive side little easier to remove, because I did the same thing, but I soaked my non drive side removed cup with only only, and i got broken loose with an adjustable wrench with long pipe to add more leverage. with oil,

@smizzy048 2 года назад

Yoo nice videoo I remembered about youu

@DanyoSports 2 года назад

Thanks! How’s going?

@smizzy048 2 года назад

@@DanyoSports good

@1t_wasnt_me 3 месяца назад

Not all bottom bracket bolts are M7, I ordered M7 x 40mm to do what you said only to discover that the bolts on my Carrera Karkinos are M8, so I got M8 x 40mm, bottom bracket still wouldn't budge, then we clamped the adjustable spanner to a scaffolding pole with a flattened end, still wouldn't move, heated the bottom bracket up and tried again, this time two of us were pushing down on the scaffolding pry bar extension when the pressure became too much and the jaws of my heavy duty stanley adjustable snapped. I don't believe that your video is very truthful, that bottom bracket that you showed, the one that was allegedly rusted on, was definitely removed and then replaced for the making of your video, because there's not a chance in hell that a bottom bracket that was rusted on, released as easily as you portrayed in this video, no chance!

@1t_wasnt_me 3 месяца назад

And before anyone says anything, Yes, we were trying to remove it in the right direction, Clockwise drive side & counter clockwise on the non-drive side., it still snapped the adjustable's jaws