Remove stuck bottom bracket

[trex]

cwah, if your BB is still stuck, post another picture so we may see where the problem is. Always turn the spanner in the direction that you pedal.

 

[Deleted member 4366]

cwah, if your BB is still stuck, post another picture so we may see where the problem is. Always turn the spanner in the direction that you pedal.

That makes putting the BB back in a bit tricky!

 

[cwah]

Here is how I'm trying hammer:

I'm doing it in the opposite direction where I pedal. I suppose that's the way to make sure people don't loosen the bottom bracket as they pedal!

I tried to hard the BB tool is almost all rounded now

 

[trex]

cwah, you turn the spanner in the direction you pedal to remove the cups.
If you hammer it like in the picture, you are tightening it.
The chain side cup (fixed side) has anticlockwise thread, the non drive cup (adjuster side) has the normal thread.

 

[Deleted member 4366]

You're trying to turn it the wrong way. The left side has a right hand thread, so anticlockwise to loosen (looking from the left side). The right side has a left hand thread, so clockwise to undo (looking from the right side).

 

[cwah]

 

[Cyclezee]

This is turning into an epic drama.

It could be time for a new removal tool, nice long meaty ring spanner rather than an ill fitting adjustable and to follow D8veh's directions for removal.

One thing is for sure now, it ain't going to spontaneously work loose.

Dare I ask why you need to remove the BB.

 

[eHomer]

Here is how I'm trying hammer:
I'm doing it in the opposite direction where I pedal. I suppose that's the way to make sure people don't loosen the bottom bracket as they pedal!

That is perfectly logical CWAH, it seems like the right way, but as others have replied, it's actually the opposite.

The loosening forces are reversed because the bottom bracket is a roller bearing, rather than just a thread.

I used to have a job betting my head round it, something called "epicyclic fretting precession", explained here in a Wiki article:

https://en.wikipedia.org/wiki/Precession_(mechanical)

 

[cwah]

Et voila!

Thanks for you all, and thanks for turning the bottom bracket on the right direction, I've finally made it!!

I've done some magical recycling between all my 2 broken bikes (one with fork damaged by Q100 and the other one with crank rubbing against the chainstay... and my BBS02 that never sold!

Now I have this:

I may just keep it as spare bike.... but still some concern to park it outside overnight

 

[Cyclezee]

Well done cwah, you got there in the end

 

[jerrysimon]

Et voila!

Thanks for you all, and thanks for turning the bottom bracket on the right direction, I've finally made it!!
I may just keep it as spare bike.... but still some concern to park it outside overnight

Just remember to pump those tyres up

Jerry

 

[cwah]

Yup these are old tyres I need to change