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PostPosted: Tue Oct 29, 2013 12:15 pm 
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Joined: Mon Oct 10, 2005 11:50 am
Posts: 824
Location: Middlesex
Can anybody identify the headset cups in this picture? Which headset do they belong to?

I ask as these are seized in an Amp B5 frame that I was planning to restore and rather than risk damaging the frame trying to remove them I was going to buy the right headset, or one very close and go from there and fit the nice F3XC fork I have.

Can anybody help?

[url][url=http://www.flickr.com/photos/92057228@N06/10553725464/]Image[/url]
What headset is this? by joe.handley.549, on Flickr[/url]


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PostPosted: Tue Oct 29, 2013 12:19 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Fri May 08, 2009 10:01 am
Posts: 11214
Location: Stockport, staring at the Peaks
You're clearly not hitting them hard enough... :wink:


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PostPosted: Tue Oct 29, 2013 12:27 pm 
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Joined: Mon Oct 10, 2005 11:50 am
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Location: Middlesex
dont want to risk it, the local bike shop said the same. ;)


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PostPosted: Tue Oct 29, 2013 2:29 pm 
Gold Trader / MacRetro rider
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Joined: Sun May 25, 2008 11:03 am
Posts: 18218
Location: Sunny Glasgow
Are you using a proper headset cup remover ?

Yes?

Then get a bigger hammer :wink:


Might want to soak it first in a solution of thinners or a penetrating oil. something to help weaken the grip the corrosion between the cup and headtube. Plastic container to dunk it in then leave it overnight.

Love watching the fear on customers faces as you use brute force to free something. I have bashed the utter hell out of things like BB cups and im sure i must have been applying massive forces with extended scaffold poles on the end of spanners. Same with removing pedals, we've have 3 people on the end of a big extended wrench undoing a pedal. You'd have thought the crank arm would have snapped but it was the corrosion that went first.

A proper tool will hold itself in place. You need to hit it squarely, thats about your only worry, and even then i dont really mean 'worry' more be aware :?


NOTE
If you really arent comfortable walloping it a last resort would be to carefully mill away one part from another. :? About all i can think of sorry, but i would stress having it dunked in a penetrating solution first before making further attempts.
Theres a very good pro solvent for this. Apparently eats alloy oxide but not the alloy itself and is recommended for seatposts. I really cannot remmeber the bloody name :? Brox*** something


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PostPosted: Tue Oct 29, 2013 2:45 pm 
retrobike rider
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Joined: Tue Jan 29, 2008 11:04 pm
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Location: A wretched hive of scum and villainy...
Quote:
Theres a very good pro solvent for this. Apparently eats alloy oxide but not the alloy itself and is recommended for seatposts. I really cannot remmeber the bloody name :? Brox*** something

Sounds a bit like Evaporust Aluminate. Or maybe something a bit less friendly containing phosphoric acid. :shock:

All the best,


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PostPosted: Tue Oct 29, 2013 3:29 pm 
Retro Guru

Joined: Mon Oct 10, 2005 11:50 am
Posts: 824
Location: Middlesex
guys, left it with my LBS and they didnt want to bash this too much as they knew it was a nice frame and didnt want to hit it with a bigger hammer, i took their word for it that this was reasonable and they had tried to bash the cups out. As such I have gone with the idea of finding the right headset ... but am happy to be swayed back to the bigger hammer approach but dont want to do it myself as i dont have the right tools. I'm near london and bike shops around these ere parts are a bit crap so it may well be they just cant be bothered trying, any recommended bike shops in south west london or easy drive from?

otherwise guess the headset continues! ;)


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PostPosted: Tue Oct 29, 2013 4:18 pm 
retrobike rider
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Joined: Fri Aug 08, 2008 2:36 pm
Posts: 16750
Location: Yorkshire, England
The right tool should hammer it out without twisting, so would the right fitter.
A less stressful but time consuming approach is to cut it out slowly like a stuck bottom bracket till it fold in on itself.

putting a headset in, given it will push the tube apart a touch, would be when it goes ;)
Really though if it goes on that, then it'll go when riding I would have thought.

I don't know the headset, at least from that picture. No markings or faint worn away writing on the lower cup.
Do you have the other parts ?


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PostPosted: Tue Oct 29, 2013 4:34 pm 
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Joined: Mon Oct 10, 2005 11:50 am
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Location: Middlesex
nope, no letters or anything on the either cup set and no other parts. :(


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PostPosted: Tue Oct 29, 2013 8:24 pm 
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Joined: Sun Dec 28, 2008 12:12 am
Posts: 680
Location: Anglesey
The cups look a similar shape to the Diatech ones I knocked out of my frame, the logo was easily scratched away on those. Although, I can't imagine anyone would fit a low-range h/s to an Amp frame, so I doubt it's the same. If it's a 1 1/8" headtube you're welcome to the races etc just to see if they fit - I've no use for them.


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PostPosted: Wed Oct 30, 2013 9:31 am 
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Joined: Mon Oct 10, 2005 11:50 am
Posts: 824
Location: Middlesex
Koupe, might take you up on that. I'm wondering if I try another bike shop who might try harder with the cups as I did go and buy a king headset for it. ;)

But if anybody else has headset type ideas, let me know.


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