Help, who could fix this for me?

Konkers

Folks,

when stripping and cleaning some bits off a frame I purchased, I snapped the screw / rivet section (badly rusted) of the frame gear cable adjuster leaving me with screw / rivet section stuck in the frames cable guide.

See photo.

Its not something i want to attempt fixing myself for fear I will not be able to fit gears to the bike as a result of my F***ing it up further.

Can anyone help or know of anyone who can? Is it a simple fix to a common refurb problem?


I've tried all the obvious stuff (oil, degreaser, pliers etc.)

Wishbone Ash

What about drilling it out - start off with a very small bit and increase as necessary. The angle might be awkward as you won't be able to align the drill parallel to the frame.

Konkers

Wishbone Ash wrote: »

What about drilling it out - start off with a very small bit and increase as necessary. The angle might be awkward as you won't be able to align the drill parallel to the frame.

yeah I think that's probably what's required i.e widen the hollowed part of the screw thus stripping out the rusted bit and clear out the remaining rivits leaving the frame part untouched. Would not try it myself though. Do you know anyone who has done this successfully?

Wishbone Ash

Konkers wrote: »

Do you know anyone who has done this successfully?

I've never done it on a bike but have done so with larger bolts - it's an occasional occurance with farm machinery etc.

I recall my brother shearing the head of a bolt and he had to weld an extra piece onto it and then weld a nut onto it to release the trapped part.

Konkers

found this

http://forums.bicycling.com/eve/forums/a/tpc/f/671104717/m/8261096066

anyone have a jewellers saw......... (nervous needy laugh)

Holyboy

I hate it when that happens, I get about one or two a year, a screw extractor MAY work if some penetrating oil is used but it's unlikely, drilling it out is another option but it can be hard as the headtube gets in the way, cutting it out works too but obviously you need to be careful, slowly,slowly catchy monkey as they say, they will come out but I would expect to be at it for about 3 hours:(




I just had a flash of genius but I don't know if it will actually work until back in work tomorrow!

GGorman

Hey, I've come across a similar problem to this before.
A rotary tool would be ideal but if you can't get/borrow one buy a rotary tool cutting wheel like this one and use a quality drill at a high speed making sure to cut with little pressure so that the disc doesn't slow down much.

You can usually find these at Motor factors or hardware stores.
You need to soak and I mean soak the adjuster in WD40 or similar a few times.
Then cut one side of the adjuster so that the drill/rotary tool is perpendicular to the frame.
You should then be able to unscrew it using a large flat head screwdriver.
Hope this helps

Konkers

Holyboy wrote: »

I hate it when that happens, I get about one or two a year, a screw extractor MAY work if some penetrating oil is used but it's unlikely, drilling it out is another option but it can be hard as the headtube gets in the way, cutting it out works too but obviously you need to be careful, slowly,slowly catchy monkey as they say, they will come out but I would expect to be at it for about 3 hours:(




I just had a flash of genius but I don't know if it will actually work until back in work tomorrow!

Might be popping into u this AM so.........