Help me STW, you�...
 

  You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more

[Closed] Help me STW, you're my only hope: Old school bottom bracket removal

15 Posts
10 Users
0 Reactions
73 Views
Posts: 0
Free Member
Topic starter
 

I have the right size spanner for the RHS, but it currently will not budge, what on earth do I use on the LHS? Thanks in advance.
RHS
[IMG] [/IMG]

LHS
[IMG] [/IMG]
[IMG] [/IMG]


 
Posted : 08/02/2012 12:44 pm
Posts: 17366
Full Member
 

Keep trying on the rhs. Once it's loosened you may be able to remove the lhs with just a big shifter.

If not you can make your own tool.

A couple of parallel pieces of suitably thick steel with a couple of other bits welded, brazed, or simply bolted to keep them in position. I used bolts, and the tool took about 10 mins to make with a hacksaw and drill.

This worked better than the special spanner I used to have for the job. Unfortunately I no longer have them - left them in Oz.


 
Posted : 08/02/2012 12:52 pm
Posts: 0
Free Member
 

big adjustable spanner? Stilson? Get the right tool? Hammer and punch?


 
Posted : 08/02/2012 12:54 pm
Posts: 0
Free Member
 

Plenty of plus gas overnight and a set of stilsons. If it won't loosen try tightening slightly first to get it moving. As a last resort you could try heating it up but will need repainting after. If you're using a proper spanner you could refit the crank arns with some spacers to hold the spanner onto the BB and stop it slipping off, I did something similar with an ISIS and it just means you can swing on the spanner a bit more confidently! Good luck 🙂


 
Posted : 08/02/2012 12:56 pm
Posts: 251
Full Member
 

wot TJ said - I have a 24" adjustable spanner that serves all sorts of purposes - I think you'll get enough grip on that one flat to get it out too.


 
Posted : 08/02/2012 12:56 pm
Posts: 0
Free Member
Topic starter
 

Teej - The right tool. I cannae find it, despite your fog of senility do you think you could provide a link to one?

Otherwise, its gonna be wd40, stilsons/adjustable and grunt.


 
Posted : 08/02/2012 12:58 pm
Posts: 0
Free Member
 

As already said, a big AJ should do it. Konaboy's advise is good too.

I've had someting similar before and I found it best if you take the LH side out first.


 
Posted : 08/02/2012 12:58 pm
Posts: 0
Free Member
 

Get the right sized spanner and then a tube (something like a piece of scaffolding pole) that you can put around the spanner to give you much more leverage. Works almost every time for me.

Also, thinking a bit more - looks like you could clamp it in a vice if you have one...


 
Posted : 08/02/2012 12:59 pm
Posts: 251
Full Member
 

[i]Works almost every time for me. [/i]

and the times it doesn't is when you subsequently remember that the drive side undoes the wrong way 😉


 
Posted : 08/02/2012 1:00 pm
Posts: 3284
Full Member
 

bench vice


 
Posted : 08/02/2012 1:01 pm
Posts: 0
Free Member
 

I love the sound of metal fusing together.


 
Posted : 08/02/2012 1:02 pm
Posts: 251
Full Member
 

oh, and do try some plusgas in there too - certainly after you get the non-drive side out.


 
Posted : 08/02/2012 1:03 pm
Posts: 97
Full Member
 

I'd be careful with that drive side cup. You'll soon round that off with a stilson. Even a big adjustable might be hit & miss. I once ended up geting a bar tack welded onto the face of one to get it out.

Plenty of nice thin oil, & let it soak. Your local bike shop might have better version of one of [url= http://www.ebay.co.uk/itm/Cyclo-Bottombracket-fixed-cup-36mm-15mm-pedal-spanner-/380406695545?pt=UK_Spots_Leisure_Cycling_Tools_RepairKits&hash=item5892018679 ]THESE[/url] that should do the job. Got to be worth a bag of donughts...


 
Posted : 08/02/2012 1:06 pm
Posts: 0
Free Member
Topic starter
 

takisawa2 , I have the drive side spanner, although not as good as that cyclo one..

Vice is a good idea.


 
Posted : 08/02/2012 1:31 pm
Posts: 39449
Free Member
 

Apply heat with a blow torch , plusgas and

a flat head blunt chisel and a mash hammer will see that out if all else fails !

drive side we had a special socket for it that clamped on through th shell once you had the non drive side out.

im a determined ****er and no BB ever beat me - no matter how stuck.


 
Posted : 08/02/2012 1:42 pm
Posts: 39449
Free Member
 

[img] [/img]


 
Posted : 08/02/2012 1:43 pm

6 DAYS LEFT
We are currently at 95% of our target!