Removal of shimano 105 hollowtech II crankset

[Kirstie]

Help please! I'm trying to remove the crankset on my Airnimal to put some different sized chainrings on.

I have successfully removed the non drive side crank arm, and from what I have read, the crankset and spindle should just come out easily. However they are not budging and I'm wondering if I've missed something.

Does anyone have any tips? The Park Tools website and Sheldon Brown have been little help.

Ta.

 

[ianrauk]

Just needs a bit of brute strength. Rubber mallet or if you dont have one of those, a lump of wood over the spindle and a whack with a hammer

 

[heliphil]

yes a gentle tap with something soft ( wood + hammer) should see it come free

 

[Kirstie]

So I've just got to tw*t it?
Do I remove the non drive side ebb cup before tw*tting? Park Tools suggested not.

 

[ianrauk]

It should come out with the BB in situ.

 

[Kirstie]

Hmm I can't see how looking at it but I'll give it a whack and see what happens.

 

[theclaud]

Hmm I can't see how looking at it but I'll give it a whack and see what happens.

I have Hollowtech IIs on two bikes and I second the tw*tting advice. As long as it's something soft you can afford to give it quite a wallop...

 

[ianrauk]

Tw*t it as far as it can go. Then grab the drive side and give it a right good wiggle and pull...

Hmm I can't see how looking at it but I'll give it a whack and see what happens.

 

[theclaud]

Tw*t it as far as it can go. Then grab the drive side and give it a right good wiggle and pull...

Ah, the tw*t and wiggle approach. It never fails.

 

[ianrauk]

I think the pulling is just as important Claude.....

Ah, the tw*t and wiggle approach. It never fails.

 

[Kirstie]

Righto. Tw*t, wiggle and pull.
<adopts heroic stance>
To the workstand!!
</adopts heroic stance>

 

[Kirstie]

Yay! Success!
Thanks everyone.

 

[Landslide]

I reckon it woz the heroic stance wot dunnit...

 

[ianrauk]

nice one... jobs a goodun

 

[Kirstie]

nice one... jobs a goodun

I wish.
It appears that I have wrecked the ebb cup putting the crankset back on.

A word of advice, when you are 'gently tapping' the crankset back into the BB shell, take care that the bearing cover on the non-driveside ebb cup doesn't get knocked out. It's made of very brittle plastic and on reinsertion into the ebb cup became chipped, so it doesn't properly cover the bearing and I now need a new one. They aren't supposed to come out, apparently, but mine did. You can't seem to get these as spares so it's down the LBS tomorrow to see if they can sort it.

Bah.