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Author Topic: Rear Brake is Trying to Kill Me!  (Read 1317 times)

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Offline Mo

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Rear Brake is Trying to Kill Me!
« on: September 04, 2014, 03:33:27 PM »
Rear brake pretty much just snapped, locking up my rear wheel.









I'm glad I was pulling off a stop, so I was able to bring her to a stop on the side of the road. I've ordered most parts to fix. Can't for the life of me find the rear stopper bolt...

Could have been worse!

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Offline Vinhead1957

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Re: Rear Brake is Trying to Kill Me!
« Reply #1 on: September 04, 2014, 04:09:38 PM »
Very lucky
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Offline albertaboy

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Re: Rear Brake is Trying to Kill Me!
« Reply #2 on: September 04, 2014, 04:11:15 PM »
Yup. Heard of it happening to the PO of my bike. Glad your ok.
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Offline 70CB750

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Re: Rear Brake is Trying to Kill Me!
« Reply #3 on: September 04, 2014, 05:02:23 PM »
Glad you ok!
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Offline brandEn

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Re: Rear Brake is Trying to Kill Me!
« Reply #4 on: September 04, 2014, 05:28:07 PM »
Glad your OK! But man look at the corrosion on that brake stay. Seriously inspect your bike for any more rust and rot. That part was not safe to be on your bike.
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Offline Bodi

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Re: Rear Brake is Trying to Kill Me!
« Reply #5 on: September 04, 2014, 06:08:51 PM »
No picture shows the brake stay very well, but it's not very rusty - the rusty part is at the brake pedal end of the actuating rod.
The attaching bolt hole on the stay looks undamaged - it appears the bolt just came loose and fell off. This fastener has a split pin keeping the nut from falling off for good reason, this demonstrates why!
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Offline Don R

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Re: Rear Brake is Trying to Kill Me!
« Reply #6 on: September 04, 2014, 06:20:24 PM »
The picture must be decieving, the brake stay looks bad when it's blown up big, if the bolt fell out first what do you think caused it to snap?
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Offline goldarrow

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Re: Rear Brake is Trying to Kill Me!
« Reply #7 on: September 04, 2014, 08:09:45 PM »

Quote from: Bodi on September 04, 2014, 06:08:51 PM
No picture shows the brake stay very well, but it's not very rusty - the rusty part is at the brake pedal end of the actuating rod.
The attaching bolt hole on the stay looks undamaged - it appears the bolt just came loose and fell off. This fastener has a split pin keeping the nut from falling off for good reason, this demonstrates why!

+1 pin came off, then the nut, then the bolt, then the brake plate spin, then the brake rod wrapped around axle spacer
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Offline Stev-o

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Re: Rear Brake is Trying to Kill Me!
« Reply #8 on: September 04, 2014, 08:27:41 PM »
Quote from: goldarrow on September 04, 2014, 08:09:45 PM

Quote from: Bodi on September 04, 2014, 06:08:51 PM
No picture shows the brake stay very well, but it's not very rusty - the rusty part is at the brake pedal end of the actuating rod.
The attaching bolt hole on the stay looks undamaged - it appears the bolt just came loose and fell off. This fastener has a split pin keeping the nut from falling off for good reason, this demonstrates why!

+1 pin came off, then the nut, then the bolt, then the brake plate spin, then the brake rod wrapped around axle spacer

OR... the pin was not properly replaced last time the rear wheel was put on.  I'd say the rider was very lucky.  If you paid to have that wheel installed, you should be going to have a talk with someone.
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Offline welard

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Re: Rear Brake is Trying to Kill Me!
« Reply #9 on: September 05, 2014, 01:32:11 AM »
Can't ask for a better excuse to start a rebuild......Yay...rebuild!!!!
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Offline evanphi

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Re: Rear Brake is Trying to Kill Me!
« Reply #10 on: September 08, 2014, 05:41:32 AM »
:| That would be terrifying.
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Offline Mo

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Re: Rear Brake is Trying to Kill Me!
« Reply #11 on: September 08, 2014, 07:16:26 AM »
Quote from: Stev-o on September 04, 2014, 08:27:41 PM
Quote from: goldarrow on September 04, 2014, 08:09:45 PM

Quote from: Bodi on September 04, 2014, 06:08:51 PM
No picture shows the brake stay very well, but it's not very rusty - the rusty part is at the brake pedal end of the actuating rod.
The attaching bolt hole on the stay looks undamaged - it appears the bolt just came loose and fell off. This fastener has a split pin keeping the nut from falling off for good reason, this demonstrates why!

+1 pin came off, then the nut, then the bolt, then the brake plate spin, then the brake rod wrapped around axle spacer

OR... the pin was not properly replaced last time the rear wheel was put on.  I'd say the rider was very lucky.  If you paid to have that wheel installed, you should be going to have a talk with someone.

More or less this.

Bike was tipped over a few weeks back. Since that happened, I noticed the rear was a little twitchy, but quick visual inspections didn't show anything. Fast forward a few weeks, the bolt just comes loose. Somehow the cotter pin fell out and the nut undid itself. I found the bolt on the side of the road and the washer on my swingarm. Lucky as hell as I was going slow, and a lesson learned. I guess TCLOCS is a thing for a reason. All the parts I need I am waiting to arrive. Replaced the nut with a nylock and installed a cotter pin. 
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Offline jamesbekman

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Re: Rear Brake is Trying to Kill Me!
« Reply #12 on: September 08, 2014, 07:27:41 AM »
This basically happened due to not having a cotter pin in place correct?
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Offline Mo

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Re: Rear Brake is Trying to Kill Me!
« Reply #13 on: September 08, 2014, 07:29:49 AM »
I believe the cotter pin is supposed to be some sort of back-up. In case he nut comes loose, the pin will at least ensure the bolt won't pull out and the rear is still semi-useable. When the pin falls out, nothing stops the nut from coming completely off, and the bolt backing all the way out. So then the entire rear brake just fails.
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Offline thep1pe

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Re: Rear Brake is Trying to Kill Me!
« Reply #14 on: September 08, 2014, 08:39:20 AM »
Never seen a properly fitted split pin fall out.


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Offline Mo

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Re: Rear Brake is Trying to Kill Me!
« Reply #15 on: September 08, 2014, 08:43:54 AM »
Quote from: thep1pe on September 08, 2014, 08:39:20 AM
Never seen a properly fitted split pin fall out.


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Congrats!   ;D
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Offline chung

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Re: Rear Brake is Trying to Kill Me!
« Reply #16 on: September 08, 2014, 06:07:48 PM »
  My Liver is trying to kill me. IF somebody treated me like that, I,d be pretty pissed off and looking for some payback too.  :'(
  Nothing liasts forever.
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Offline Mo

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Re: Rear Brake is Trying to Kill Me!
« Reply #17 on: September 08, 2014, 06:09:02 PM »
Quote from: chung on September 08, 2014, 06:07:48 PM
  My Liver is trying to kill me. IF somebody treated me like that, I,d be pretty pissed off and looking for some payback too.  :'(
  Nothing liasts forever.

Best way to fix that is with some JD. (Sorry about the homicidal liver though)
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