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Sheared bolt - holding rear brake line

Posted: Sat Aug 22, 2015 1:48 pm
by philjohnston
I was trying to access the oil filter and when I was first removing the 8mm bolt holding the rear brake line it sheared (on left side of bike near the 17mm bolt for air filter). Any ideas what to do? It appears just to hold the rear brake line up and out of the way. :cry:

Re: Sheared bolt - holding rear brake line

Posted: Sat Aug 22, 2015 5:42 pm
by Alibally
You'll probably need to take the belt cover off and see if there's any bit of the bolt sticking out that can be unscrewed.
Did you turn it the wrong way and break it or was it seized?
If it's broken off flush with the casing and it's not going to come out easily then I would seek professional help as it can be harder to repair properly if it's buggered about with.

Re: Sheared bolt - holding rear brake line

Posted: Sat Aug 22, 2015 5:52 pm
by philjohnston
Thanks for the reply. It was right and properly seized ... I did turn it the proper direction but the bolt sheared. I received a suggestion from someone in my scooter group to try a bolt extractor called "grab-it". I will see if that works and if not then get professional help. Really pleased to see a reply from Edinburgh by the way. My wife, I and our 2 kids lived in Scotland 2007 -2011 ... 07-09 in Edinburgh and 09-11 in Broughty Ferry near Dundee.

Cheers

Re: Sheared bolt - holding rear brake line

Posted: Sat Aug 22, 2015 6:15 pm
by Alibally
Give it a spray with some release oil / wd40 or equivalent and leave it overnight if possible. It might help free the crispy bits.

Re: Sheared bolt - holding rear brake line

Posted: Sat Aug 22, 2015 9:40 pm
by j.d.b.
If it's sheared flush I would drill a 4mm hole in the aluminium tab extending left of the bolt boss and use a cable-tie to anchor the cable. fast, easy, cheap, and effective! The alternative is generally drilling out the last of the bolt and Heli-coiling the hole. Blehhh.

Re: Sheared bolt - holding rear brake line

Posted: Sat Aug 22, 2015 10:09 pm
by relic
you got it j.b.d.

Re: Sheared bolt - holding rear brake line

Posted: Sun Aug 23, 2015 9:25 am
by j.d.b.
This morning, for grins, I put a wrench to that bolt. It was very tightly stuck to the anti-rotation arm on the cable-case bracket, itself, but not locked up in the aluminium case threads. I had to support the arm(as it was really trying to twist) and SNAP, it let go and turned easily out of the case. Interesting as this is a decent, plated lag-bolt and there's no sign of rust where the bolt contacts the cable-case bracket. This bike just turned 1000 miles this week. I put a dab of anti-sieze on the underside of the bolt-head and re-installed it. Weird.

Re: Sheared bolt - holding rear brake line

Posted: Sun Aug 23, 2015 3:48 pm
by philjohnston
The other half of the bolt is now out thank goodness. One of my buddies from our scooter club in Calgary came over this morning and got it out using a bolt extractor. He had to first drill into the broken 1/2 that was recessed in the hole (to flatten the head), then reverse drilled into the head, then used the extractor (with drill on reverse) to extract the broken piece. Picture of the 2 pieces attached
IMG_4332.jpg
IMG_4332.jpg (459.12 KiB) Viewed 1549 times
Thanks to everyone who replied over the past day with suggestions ... it was much appreciated.

Re: Sheared bolt - holding rear brake line

Posted: Sun Aug 23, 2015 4:01 pm
by Alibally
Good job. A wee touch of grease on the bolts now?

Re: Sheared bolt - holding rear brake line

Posted: Sun Aug 23, 2015 5:16 pm
by j.d.b.
Isn't it interesting how there's no sign of corrosion? That plating appears intact. No welding apparent in that picture.
Yeah, a bit of anti-sieze should prevent any future trouble.

Re: Sheared bolt - holding rear brake line

Posted: Tue Aug 25, 2015 4:40 pm
by philjohnston
Got Genuine Honda part replacement of bolt today (only $2) :P . Definitely used the anti-seize lubricant (thanks for that recommendation) and installed it (not too tight!). Everything is "right as rain" again.