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Mhlunsford
Posted on Saturday, December 07, 2013 - 10:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Broken bolt shown is sheared inside
Broken bolt sheared inside bolt is just hanging


Many successful at getting the broken part out ?
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Dannybuell
Posted on Saturday, December 07, 2013 - 11:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Been there done that 2 or 3x. Support the motor with a floor jack. Take off the forward motor mount nut under the gas tank right behind the neck and the remaining bolt that goes into the head. with the motor mount out of the way the sheared bolt is in plain view. One time I used a punch and hammer, tapping it out. The next time my buddy had a reverse drill bit and without any preparation he just held the bit down firmly and powered it out. Grade 8 bolts are not enough, there is a grade higher grade 9. Use plenty of anti-seize on reassembly.
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Jolly
Posted on Sunday, December 08, 2013 - 02:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

American Sport Bike sells an extractor kit for this! There is a reverse drill bit and I think it comes with a guide for drilling.
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Mhlunsford
Posted on Sunday, December 08, 2013 - 03:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks guys I need to order a few things from ABS might as we'll add the extractor too.
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Mhlunsford
Posted on Sunday, December 08, 2013 - 03:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What about grade 12 bolts here ?
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Modified4speed
Posted on Sunday, December 08, 2013 - 03:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

good luck their tedious but can be removed...
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Lakes
Posted on Sunday, December 08, 2013 - 03:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I done what DannyB said but i sprayed broken bolt with WD40 let it stand then put vice grips on the broken bolt worked it back & forth it came out easy
got new bolts from American Sport Bike & billet mount did a lot of hard riding since & no problem yet two years on
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Mhlunsford
Posted on Sunday, December 08, 2013 - 06:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The WD or liquid wrench are my favorites.

what is the billet mount ?
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Jolly
Posted on Sunday, December 08, 2013 - 07:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

American Sport Bike billet motor mount...

http://www.americansportbike.com/shoponline/ccp0-prodshow/16031.html


American Sport Bike motor mount
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Mhlunsford
Posted on Sunday, December 08, 2013 - 07:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What effect does the billet motor mount have ?
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Jolly
Posted on Sunday, December 08, 2013 - 09:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

its heavier duty, and the extra material keeps it from breaking. a lot of these issues are either a broken bolt or a broken mount. with this mount and new grade 9 bolts properly installed you shouldn't have the problem you currently have ever again. I have two of these, one of my bikes has the stock one and the other bike has a billet copy of the stock style..so far no stress marks or cracks are developing in the billet style of the stock design...but eventually even that bike will get one of these....

I have not had the broken bolt or broken mount issue yet, so I've either been lucky r stayed ahead of the problem
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Lynrd
Posted on Sunday, December 08, 2013 - 09:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The billet as opposed to cast would be marginally stronger from a material standpoint, but more importantly, the extra webbing between the lower pivot points would eliminate the ability of the mount to vibrate like a tuning fork. I think that front mount is the bee knees.
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Rocket_in_uk
Posted on Sunday, December 08, 2013 - 09:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You don't need a billet expense. Use the later stock mount and the stock bolts.


Rocket in England
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Yo_barry
Posted on Sunday, December 08, 2013 - 09:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mark, I think I read this on American Sport Bike. The original front motor mount vibrates and sets up a resonance in the left mounting bolt. This causes it to shear. When that bolt shears, the motor mount will break on the right side in the thin section. I posted some pictures about a week ago in a thread titled front motor mount 2001 S3T or something similar.

The extractor kit from Al @ American Sport Bike contains a hardened bit and a special extractor. The bit is not a reverse flute. I haven't tried to remove the broken bolt yet. Probably get to it this week.

Barry
Hollister, CA
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Jolly
Posted on Sunday, December 08, 2013 - 11:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

oh....I just figured it out...good advice for the wrong problem...which doesn't really help does it!! I was thinking of the exhaust stud guide and bolt extractor....sorry...focused on my own issue of removing and replacing exhaust studs on the motor I am working on and transposed my what if it breaks while removing it problem into the problem you have...motor mount bolt broken not exhaust stud broken...even though the picture CLEARLY defines the problem...sorry...obsessed with my own project right now....

maybe I need a day off from work AND the garage..but I would drive the wife crazy with that much free time... all other information valid, just pay no attention to my ramblings of a stud remover kit and guide...
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Jim2
Posted on Monday, December 09, 2013 - 12:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

This thread details my experience extracting the broken mount bolt using the extractor from American Sport Bike


http://www.badweatherbikers.com/cgibin/discus/disc us.cgi?pg=prev&topic=47623&page=686883
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Mhlunsford
Posted on Monday, December 09, 2013 - 10:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for all the help
It is cold here in the Bay Area 25f so maybe the time has come to take this m2 apart.
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Bluzm2
Posted on Friday, December 13, 2013 - 12:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

One thing that most miss.
The two bolt boss faying surfaces on the head MUST be perfectly flat and in the same plane.
When you remove the old motor mount I'll bet you see the faying surface is "rockered" from top to bottom on the broken side.
The other side will probably be as well but to a lesser extent.
If you are good and methodical you may be able to take care of it with a file.
The best practice is to pull the head and have it machined.

Brad
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Modified4speed
Posted on Friday, December 13, 2013 - 02:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Its almost safe to say if I am keeping the bike I need to collect a few heads and mounts and rotate being repaired vs ready to install for ease in the future... HAHAHA
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Kalali
Posted on Friday, December 13, 2013 - 06:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Blum, what do you mean by "faying" surfaces? Not familiar with that term. Thanks.
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Kc_zombie
Posted on Friday, December 13, 2013 - 07:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

"The surface of an object which comes with another object to which it is fastened". Or in laymen's terms the two surfaces which mate together, i.e. the flat surface of the head and the flat surface of the front mount...
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Oldog
Posted on Friday, December 13, 2013 - 08:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

having done the bolt bit some points

check the rear mounts (rubber)
get the proper bolts from Al or a sponsor dealer, follow the directions to the letter

I also recommend the billet mount,
> 15K miles no issues
also Blues is correct the mounting surfaces must be flat and true to each other else you do it over...

I had little luck with the drill out trick,
If Al has an extractor kit I would buy it, if the pad is chewed up you want to pull the head and send it to a shop, Cycle Rama [ a sponsor ] milled mine, no issues
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Oldog
Posted on Friday, December 13, 2013 - 08:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Its almost safe to say if I am keeping the bike I need to collect a few heads and mounts and rotate being repaired vs ready to install

Only if you do it wrong, this is a common problem, like

rocker box gaskets,
breaking exhausts and studs,
oil pump gears
Fuel pumps on FI bikes
and the infamous grenade plate

get in front of the maintenance and its not much of a problem. }
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89rs1200
Posted on Thursday, December 03, 2020 - 12:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Motor Mount Bolt Kit instructions from American Sport Bike;



Motor_Mount_Bolt_Kit-American_Sport_Bike.jpg
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89rs1200
Posted on Thursday, December 03, 2020 - 01:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Motor_Mount_Bolt_Kit-Buell_Recall_B018.pdf
application/pdfMotor_Mount_Bolt_Kit-Buell_Recall_B018.pdf
Motor_Mount_Bolt_Kit-Buell_Recall_B018.pdf (499.5 k)
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