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Broken shock bolts - Printable Version

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+--- Thread: Broken shock bolts (/showthread.php?tid=5400)

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Broken shock bolts - woodsparrow_imp - 05-06-2017

Was swapping shocks, torque wrench is apparently broken. Snapped both of the top bolts to mount the shocks in side the threads.

On a scale of 1 to sell the bike, how screwed am I?

I've been doing mechanical work for 15 years and haven't EVER snapped a bolt inside threads before. Because I'm careful. So I'm furious right now. Going to have to go to home depo and get some extractor and a tap/die set to fix the threads.

Also noticed that apparently the speedo housing is cracked, from the previous owner taking a spill.

I'm doing a lot of fixing his brokens.

RE: Broken shock bolts - the Ferret - 05-06-2017

Those little 6 mm bolts at the top of the shocks won't take much torque. From what I remember reading you are not the first to break one or more of those.

RE: Broken shock bolts - woodsparrow_imp - 05-06-2017

Anyone been able to use an extractor? Or am I looking at having to drill the entire hole out and tap it with a bigger one?

RE: Broken shock bolts - Lord Popgun - 05-06-2017

There is a thread on here about this. Like Ferret said, the torque is not much. About all the bolts do is keep the shock on. There is no real force on them. IIRC, the member drilled and extracted them. I'll have to search for it.

And here it is: http://cb1100forum.com/forum/showthread.php?tid=8806&page=2&highlight=Shock+bolt

He used an extractor.

RE: Broken shock bolts - Retsel_imp - 05-06-2017

I've be bought and tried several extractors with mixed results. More success with larger bolts. 6 mm is on the small side but, if you can get a decent, well centered, hole drilled in it you may be okay. Best of luck!

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RE: Broken shock bolts - woodsparrow_imp - 05-06-2017

Thanks Pop.

Looks like the included torque speqs for the shock were simply way higher than the 6 foot-pounds required. I new it wasn't holding anything on, but wanted to do it 'right' so...follow the torque spec.

Which works as long as you have the right torque spec.

RE: Broken shock bolts - Retsel_imp - 05-06-2017

Wood, I remembered a craftsman's set that did the trick for me last time. I went and found it and took a photo,
[url=http://s1168.photobucket.com/user/lester9/media/Mobile%20Uploads/20170506_172600_zpsoc2to7rl.jpg.html][Image: cec6b3eb534dfdd11580afee9b64a028.jpg]

[url=http://s1168.photobucket.com/user/lester9/media/Mobile%20Uploads/20170506_172610_001_zps3c9nuiid.jpg.html][Image: 981e975fcbd6be5fc747830074d26080.jpg]

It includes the drill bit and the extractor in one piece. The smallest is for 6mm. You drill in, with the extractor backed off, and once deep enough you start turning in the extractor with a wrench. It is all done counter clockwise so when it bottems out it starts turning the bold via wrenching the extractor. Again, best of luck!


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RE: Broken shock bolts - bruceb63_imp - 05-08-2017

(05-06-2017, 10:02 AM)woodsparrow_imp Wrote: Anyone been able to use an extractor? Or am I looking at having to drill the entire hole out and tap it with a bigger one?

I would 1st try a reverse drill bit. It should spin it out.

RE: Broken shock bolts - chync_imp - 05-08-2017

I have had to extract one of those. I used the cheap reverse drill bit type mentioned above. I just drilled a very small hole in the broken bolt for the extractor to bite into. It came out easy. Once the head is broken off there really is no tension holding it in.

RE: Broken shock bolts - gtmn_imp - 05-08-2017

yup so brittle probably not stuck try a pic and see if it will just turn out