stuck bottom bracket

[roger44]

try to remove a frozen BB30 square taper BB. hopeless. starting to damage the ringnut.

which is best
take it Halfords 3 miles
or
take it to Evans 13 miles

comments pls

 

[Paulus]

Do you not have a local bike shop nearby? I personally wouldn't trust a Halfords mechanic with such a job. Use Evans if you must.

 

[accountantpete]

Are you unscrewing it the right way? - have to ask as you never know.

Presumably you have a push fit BB30 to square taper bracket installed - can you unscrew the other side and then pull the stuck side out?

 

[roger44]

Im pretty sure Im unscrewing the right way, I havent done one in years. Its been in there about 10 years and wont move at all, Ive applied wd40.
Im pretty sure the drive side wont come out unless I release it first.
reluctant to hammer it any more as Im damaging it

 

[gazza1286]

Locking ring - counter-clockwise to remove;

Adjustable cup (non-drive side) - counter-clockwise to remove

Fixed cup (drive side) - clockwise to remove.

Are you using the correct spanner to undo the lock-ring or just a hammer and nail punch?

 

[Gravity Aided]

Use penetrating oil, and patience. WD-40 is a Water Disperser, recipe #40. Developed to drive water from areas of Atlas rockets.

 

[roger44]

Im using a 20 tooth tool and huge stilson, dont budge it.

 

[Ajax Bay]

BB30 square taper BB

Is this BB30 Bottom Bracket Adapter (or similar) what you're trying to remove the square taper BB from? Or is the OP's use of "BB30" there to distract?

 

[roger44]

If your issue is that the tool is jumping, you can get a crank bolt to bolt it to the spindle. If you need more leverage can you put the tool in a big, solid vice, and use the bike as the lever?

thats a good idea, I could rig that myself.

 

[gazza1286]

This shows what Adrian is describing:

View: https://youtu.be/E2dA4UBJNlE

 

[roger44]

This shows what Adrian is describing:

View: https://youtu.be/E2dA4UBJNlE

yes it needs something to hold it square in the splines, Im sure I can find a bolt long enough and a large flat washer.

 

[Ajax Bay]

can you unscrew the other side and then pull the stuck side out?

pretty sure the drive side wont come out unless I release it first.

No you should be able to get the drive side out; it's just that normally the left hand one is easier. @User 's advice should be followed: secure the spline/groove interface x20.

 

[roger44]

No you should be able to get the drive side out; it's just that normally the left hand one is easier. @User 's advice should be followed: secure the spline/groove interface x20.

I iwll give it a try, many thanks for all the advice

 

[roger44]

well all you clever devils, you were right.
I was able to remove the drive side easily, and then hammer the bb out, it was well corroded in there.
All I have to do now is get out the locking side. Gods knows how Im going to do that, its getting a good soaking first.

Im wondering if a HOT AIR gun would help without damaging the paintwork.

 

[NickNick]

well all you clever devils, you were right.
I was able to remove the drive side easily, and then hammer the bb out, it was well corroded in there.
All I have to do now is get out the locking side. Gods knows how Im going to do that, its getting a good soaking first.

Im wondering if a HOT AIR gun would help without damaging the paintwork.

Heat can definitely help dislodge a stubborn one but there's a pretty high chance of damaging the paintwork ime.