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View Full Version : Stripped FD hanger could use some advise

SeanScott
10-20-2015, 12:11 PM
I was removing the bolt and the steel coil came out with it. I have tried but can not get the coil back in and now it is distorted.

I was wondering if this repair kit might work?
http://www.ebay.com/itm/M10x1-5-Helicoil-New-Complete-Thread-And-Repair-Kit-/201357963618?hash=item2ee1deb162:m:mYv-nh_-u2UoToYNHvqCn9w&item=201357963618&vxp=mtr

Or maybe I should try and contact Campy about it?

http://i10.photobucket.com/albums/a106/sscott55/IMG_1114_zpsqbem85lr.jpg (http://s10.photobucket.com/user/sscott55/media/IMG_1114_zpsqbem85lr.jpg.html)

Thanks for the input!
ultraman6970
10-20-2015, 12:25 PM
THey have a coil inside?? wow...

If still under warranty i would call them, worse case scenario they will reject it because you did something pretty much impossible :)

The kit should work as long as you have the same threading.. remember that thing is millimetric.
DRietz
10-20-2015, 12:31 PM
That kit won't work. It's M10, that bolt is M5. Further, I wouldn't really want to put a helicoil there as there's very little material. ATMO.

I suggest calling Campy NA yourself (http://www.campagnolo.com/US/en/contacts) or having an LBS do it for you.
oldpotatoe
10-20-2015, 12:35 PM
That kit won't work. It's M10, that bolt is M5. Further, I wouldn't really want to put a helicoil there as there's very little material. ATMO.

I suggest calling Campy NA yourself (http://www.campagnolo.com/US/en/contacts) or having an LBS do it for you.

Call Campag NA, ask for Jerry or Dan Large.
AngryScientist
10-20-2015, 12:36 PM
i wouldnt try helicoiling that, there is a lot of stress on that particular bolt when the FD is under tension. yes, i would absolutely call campy about it.
oliver1850
10-20-2015, 08:11 PM
Done properly, there should be no problem with a "helicoil". Autozone sells reasonably priced thread repair kits with tap, inserts and installation tool. If you can get the FD replaced under warranty, no need to go there.
unterhausen
10-20-2015, 10:14 PM
I wonder if a helicoil would just thread right in since the coil that came out is the same thing?
ultraman6970
10-20-2015, 10:22 PM
A question, why those things have an helicoil??? There is a reason for that?

Second question, helicoils turn backwards when you are putting them in, right?
jds108
10-20-2015, 10:29 PM
If you had the correct helicoil on hand I'd say give it a shot. If not, ask Campy.

I don't understand the reluctance other posters are expressing. Clearly this is how Campy is building them...

I'm an 'amateur' mechanic and my experience with helicoils is that I may not get it right on the first try, but eventually I get it. i.e. I may damage and have to remove one or two before I get one inserted just right.
unterhausen
10-20-2015, 10:45 PM
Second question, helicoils turn backwards when you are putting them in, right?

A helicoil screws in the same way as the thread because it's a coil that forms the threads on the inner diameter. It is held in by a flare/barb at the top end, this is why you need to get one that is the right size (they come in different lengths for each thread size), particularly in a blind hole.
oliver1850
10-21-2015, 01:06 PM
A question, why those things have an helicoil??? There is a reason for that?

Second question, helicoils turn backwards when you are putting them in, right?

A helicoil is stronger and more durable than a tapped hole in aluminum or other soft metal. Very common in race cars to helicoil (by design, not as a repair) any place that a bolt threads into AL or magnesium.
Cicli
10-21-2015, 01:10 PM
A helicoil is stronger and more durable than a tapped hole in aluminum or other soft metal. Very common in race cars to helicoil (by design, not as a repair) any place that a bolt threads into AL or magnesium.

True, in big truck land (Peterbilt) where I am we use a Timecert. They are as good or better than the original threads.