New gear cable unravelled - any ideas

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New gear cable unravelled - any ideas

Postby anthonyje » Sun Apr 27, 2008 9:26 pm

Hi all,

put some new xtr dual control levers on my mtb and set up the cables to the FD and RD. Even went so far as to use a torque wrench to adjust the pinch nut holding the cables to the recommended tightness! first time I ever bothered, but I figured new fancy stuff deserved the best. Anyway, after a few gear movements the last 6inches of the cable to the FD had acquired a rough barber pole feel - I think one of the filaments has pulled a bit. However I couldn't see an obvious problem at the cable chop end.

Any previous known issues with xtr cables?
Does it sound like the pinch nut pressure or a cable fault?
SHould I replace the cable or soldier on?

Thanks.

Ant
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by BNA » Sun Apr 27, 2008 9:50 pm

BNA
 

Postby Hawkeye » Sun Apr 27, 2008 9:50 pm

Did you put the alloy crimp cap on the end of the inner?
Hawkeye
 

Postby anthonyje » Sun Apr 27, 2008 10:34 pm

ahhh

the old alloy cap on the cable inner trick.

have to admit i didn't think it was functional to that degree, just a way to stop the fray. so i haven't put it on yet.

could it be a causative omission?
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Postby Kalgrm » Sun Apr 27, 2008 11:08 pm

Check that the cable is held by the little groove in the clamp area of the FD. It sounds like not every strand was secured when you tightened the hex-bolt.

I used to use the crimps, but I'm happier with soldering the trimmed cable now.

Cheers,
Graeme
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Postby rustychisel » Wed Apr 30, 2008 3:05 pm

Coriolis force = Southern hemisphere

Yeah, sure. Err, why not. Cut with excellent cable cutters and use a thingamebob on the end.
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Postby Kid_Carbine » Mon May 05, 2008 10:24 am

Kalgrm wrote:Check that the cable is held by the little groove in the clamp area of the FD. It sounds like not every strand was secured when you tightened the hex-bolt.

I used to use the crimps, but I'm happier with soldering the trimmed cable now.

Cheers,
Graeme
Stainless cable is hard to solder.

To find the cause of the problem, remove the cable from the bike cimpletely & examine the inner wire carefully, full length.
If it's perfect, then examine whatever lengths of outer that you have.
Repair or replace as necessary, lubricate, refit, adjust, enjoy.
Carbine & SJH cycles, & Quicksilver BMX
Now that's AUSTRALIAN to the core.
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Postby munga » Mon May 05, 2008 11:59 am

i dont have a soldering iron, so before i cut the cable, i douse the cutting area with superglue, then crimp a pop rivet body (tap out the mandrel, or nail, then youre left with the body) onto the end of the cable inner.. works for me
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Postby Jean » Mon May 05, 2008 12:11 pm

munga wrote:i dont have a soldering iron, so before i cut the cable, i douse the cutting area with superglue, then crimp a pop rivet body (tap out the mandrel, or nail, then youre left with the body) onto the end of the cable inner.. works for me


I admire your lateral thinking and resourcefulness, but cable ends are worth about .00000002c each (or somthing like that). A LBS will probably give you a handful and refuse to take your 80c because it's too much hassle to open the till - they usually do for me. :D
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Postby munga » Mon May 05, 2008 12:15 pm

i've a lot of rivets :wink:
and some day you might need to replace a cable on a sunday and you might not have any cable ends..
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