blaggie
Parking Attendant
Big14
Posts: 17
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posted May 05, 2011 10:28 AM
Rear Caliper issue
Hi guys.
I had a moment today which scared the s*** out of me.
A week ago I had new tyres fitted to my loose front and rear rims and re-fitted the wheels as I've done many times before.
Been out since for several rides including a three hour spin last Monday with my partner on pillion.
Everything was working well and as it should be until today...
Approaching a red traffic light in a built-up area, I got on the brakes at around 20 mph and the back wheel locked up.
Having pulled over and investigating I was shocked to discover that the rear caliper mount had somehow disengaged from its slot in the swing-arm and was now located atop the disc and had jammed the rear brake on.
Having stripped everything off and removed the rear wheel I cannot see anything wrong to explain why this should have happened. Re-assembling the rear wheel and brake and testing out all seems to be working o.k.
I'm at a loss as to what could have caused this to happen since, as I say, everything appears to be as it should be.
I'm obviously concerned that this could happen again and thankful that I was travelling at a slow speed when it did. If this had happened on the highway at speed it could have totalled the bike, me and my partner.
Can anyone shed any light on this?
I've had the wheels out of my 14 numerous times as well as dozens of other bikes and have never experienced anything like this before.
Any advice would be most appreciated.....
____________
Paully
  
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3000psi and falling
Zone Head
Posts: 848
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posted May 05, 2011 10:36 AM
 Edited By: 3000psi and falling on 5 May 2011 18:46
There is no way for that to slide out if installed correctly, I suspect this is what happened, When you installed the rear wheel the caliper mount, it slid out of place before you installed the axle, and you just did not notice it. Ive seen this happen to another 14 and it was from improper instalation. I bet now thats its installed correctly you will not have any more issues.
____________
08 ZX14, 2010 Persimmon Red bodywork.
Flies pulled, 16-42, BMC street, 8" extensions, drag shock, cut pan, Cycle Concepts Drag Pack and springs, muzzy m14 w/ oval can, lowered, Shinco usoft rear, pcv with autotune, leightweight Shori 18ah battery, throttle meister. 500lbs at bandimeres scales with half tank of juice.
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blaggie
Parking Attendant
Big14
Posts: 17
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posted May 05, 2011 11:26 AM
Thanks for that buddy. The bit I don't get is, if the caliper mount had become dis-engaged from its slot during wheel re-fit, (which has happened to me before as its a fiddly fecker), then wouldn't it be impossible to locate the axle as it would be mis-aligned? Plus, wouldn't the problem have manifested itself immediately the rear brake was applied?
As I mentioned, I have ridden probably around 100+ miles since first fitting the wheel and I use the rear brake almost all the time.
Or am I just completely wrong with my assumptions?
____________
Paully
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3000psi and falling
Zone Head
Posts: 848
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posted May 05, 2011 11:32 AM
I think you could aligh the axle with the caliper mount out of its slot, and as far as it taking a hundred miles or so to happen,, it would take time for it to loosen up after you pinch it in place with the 100flb of torque on the axle nut. Keep an eye out on it, I bet it does not happen again. Also if you can post a picture of it now, me or dozens of others can assure you if it looks safe or not.
____________
08 ZX14, 2010 Persimmon Red bodywork.
Flies pulled, 16-42, BMC street, 8" extensions, drag shock, cut pan, Cycle Concepts Drag Pack and springs, muzzy m14 w/ oval can, lowered, Shinco usoft rear, pcv with autotune, leightweight Shori 18ah battery, throttle meister. 500lbs at bandimeres scales with half tank of juice.
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smokinZX14
Needs a life
Posts: 10197
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posted May 05, 2011 11:35 AM
quote:
Thanks for that buddy. The bit I don't get is, if the caliper mount had become dis-engaged from its slot during wheel re-fit, (which has happened to me before as its a fiddly fecker), then wouldn't it be impossible to locate the axle as it would be mis-aligned? Plus, wouldn't the problem have manifested itself immediately the rear brake was applied?
As I mentioned, I have ridden probably around 100+ miles since first fitting the wheel and I use the rear brake almost all the time.
Or am I just completely wrong with my assumptions?
I did this once on my zx14 ,, The out come was the same as yours .. I simply missed the putting the bracket in the grove .. I didn't see it and had no clue that i missed it .. Shit happens ..
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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Audioboyz
Expert Class
Posts: 265
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posted May 05, 2011 12:05 PM
I did this when I put my stock sprocket back on at the end of last season.I caught it before I tightened everything back up.Could of been bad.Glad your allright.
Craig
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2009 Monster ZX-14
Brocks Alienhead,PCV, flys out,LSL Riser kit,-1 front sprocket,43 Vortex rear sprocket,K&N Air Filter, Zero Gravity tall smoked screen,block off plates,175HP 104 torque
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blaggie
Parking Attendant
Big14
Posts: 17
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posted May 06, 2011 05:38 AM
Thanks a lot everyone. All is now o.k.
Moral of the story...Outside in daylight, check and re-check...lesson learned...
Cheers again.
Ride Safe.
____________
Paully
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INTIMIDA2OR
Needs a life
RED rider!
Posts: 13081
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posted May 07, 2011 01:56 PM
quote:
quote:
Thanks for that buddy. The bit I don't get is, if the caliper mount had become dis-engaged from its slot during wheel re-fit, (which has happened to me before as its a fiddly fecker), then wouldn't it be impossible to locate the axle as it would be mis-aligned? Plus, wouldn't the problem have manifested itself immediately the rear brake was applied?
As I mentioned, I have ridden probably around 100+ miles since first fitting the wheel and I use the rear brake almost all the time.
Or am I just completely wrong with my assumptions?
I did this once on my zx14 ,, The out come was the same as yours .. I simply missed the putting the bracket in the grove .. I didn't see it and had no clue that i missed it .. Shit happens ..
I've done it too but I caught it before my bike came off the jack 
____________
'06 Passion Red ZX-14
*Lee*
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