downtube barrel adjuster broken...

[Mazz]

Hi,

Has anyone got any first-hand experience of removing a broken-off barrel adjuster?
Mine's broken off my Allez (top end of downtube) - part of the adjuster's thread is still inside the barrel housing.

Did you end up using a tap tool to remove the remnants?

Will it damage the gear cable running through it?

Thanks

 

[C R]

I'm not sure I can visualise what you mean. Are you asking about an in line adjuster, something like this one?

 

[fossyant]

Buy a replacement adjuster and get a new cable inner and outer. Thank me later.

 

[cyberknight]

find a bolt with the same thread an attempt to screw in through on the other side to push it out would be my 1st port of call .

 

[fossyant]

If the thread is inside the "braise on" then you might need to get "creative".

 

[sevenfourate]

A picture / link to similar - would paint a thousand words on this occasion

 

[fossyant]

Pic of the broken bit would help. What sort of 'getty out' tools are in your garage ? Dremel, drill, plyers etc

 

[Mazz]

I'm not sure I can visualise what you mean. Are you asking about an in line adjuster, something like this one?
View attachment 799981

No mate, it's one of these that's welded onto the downtube.

 

[Mazz]

Buy a replacement adjuster and get a new cable inner and outer. Thank me later.

You buy them for me. I'll thank you later.

 

[Mazz]

Pic of the broken bit would help. What sort of 'getty out' tools are in your garage ? Dremel, drill, plyers etc

No Dremel, drill yes, pliers yes, no tap tools though.

 

[Mazz]

find a bolt with the same thread an attempt to screw in through on the other side to push it out would be my 1st port of call .

I like the cut of your jib, good idea.

 

[C R]

No mate, it's one of these that's welded onto the downtube.
View attachment 799990

The ferrule in the outer seems undamaged, so probably usable. But if you are changing things, the cable set doesn't cost much. Unless you've changed the cables recently, it would be worth putting a new cable.

Now for the trickier part. Is the bit protruding under the boss the end of the adjuster thread barrel? If so, and there's no corrosion, you should be able to unscrew it downward using pliers. If there’s corrosion it might get tricky, and may need penetrating oil and much care to avoid damaging the tread in the boss. Once the barrel is out, you may need to chase the thread with a tap, but brme careful, it is easy to do damage this way.

 

[sevenfourate]

No mate, it's one of these that's welded onto the downtube.
View attachment 799990

Looks like alot of thread poking out to the left of the adjuster housing.

Removing the cable, you should be able to grab that thread using something as simple as mole-grips possibly ;and start it moving. With no tension on it - once it starts moving; it might then wind out by hand.

As ever with 'stuck stuff'.......a little lubrication beforehand, or even warming with a hairdryer can free parts up and aid removal hugely.

 

[raleighnut]

No Dremel, drill yes, pliers yes, no tap tools though.

There's enough stuck out the bottom to screw it out with pliers, just remember because you are on the other end you need to turn it as though you are tightening it to screw it out

 

[roubaixtuesday]

I think I would try to screw it out the same way it went in as the broken end might not go through cleanly?

Second the suggestion for heat if it doesn't shift; boiling water works well ime.