Fkin brakes seized

[CaNsA]

new front pads on the CLR125 2 days ago, all good yesterday, today they started to lock up while doin 55 in traffic on a dual carriage way.

pulled over, left them to cool got home with no front brakes.

Need to use the bike in 12hrs time. can i sort this? cant get hold of the mechanic who fitted the pads.

cheers

CaNsA

[robbieguy2003]

Not good, i'd try and make other arrangements rather than use it. Its certainly a part you don't want to fail as its critical.

Maybe people who know more about brakes can offer advise on fixing it though.

I'd prob be quite annoying with the mechanic/garage as well as that is clearly dangerous.
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Current Bikes: Honda CBR 600RR - '07, Suzuki GSX1250 FA ST '11
Old Bikes: Suzuki Intruder 125 LC - '2001, Honda CBR 600F - '92, Honda CBR 600RR - '03

[bikedemon99]

I am stunned no one commented, umm suspicious
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Ride safe

[Itchy]

yes you can sort this IIRC correctly the CLR125 is a twin pot sliding front caliper....

I think I know what has happened though , in that the person who fir them did not clean the pistons up before fitting the new pads.....


you need:

A length of plastic tubing (to bleed the brakes)...

some brake fluid

I reckon a 12 spanner,

8 spanner for the bleed nipple

and a set of allen keys ,

Undo pad pin , and plug,

undo the caliper off the fork,

then pump the brake, the pistons should come out, try to get them to come out at the same rate so you can get your thumb in and pull the other one out..

Clean it up , wash it let it dry and use a plastic ruler to clear up any jagged bits on the piston, get some bog roll, and wipe the inside of the piston cylinder (take the seal out for best results and clean that) , try not to get any bog roll stuck in there.

pop it back in both pistons Sickpup recommends you put some brake fluid in the cylinders before hand, then bleed the brakes...

2 hour job ... don't get brake fluid in your eye though make you blind....


if you were closer I'd pop round to fix it , but I'm not so you'll have to have a crack yourself..


The alternative is to ride it carefully , with masses of front obs as you won't be able to stop quickly .... but you risk warping your front disc (an expensive part) , and use your gears to slow down.
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[sickpup]

Got those seals in stock if you need them, £9.95 delivered.

[truslack]

Seems to be a common problem with CLR's, a friend of mine had his brakes seize every time he used them for about 3 months, no matter how many times it was cleaned / new seals put in.
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Current: Suzuki RG 125 Gamma, Honda H100, Triumph Tiger 800XC, Suzuki SV650 (minitwin)

[Itchy]

red rubber grease them? , the motorfactor I bought some off was surprised that somebody under 50 knew what that was.
____________________
Spain 2008France 2007Big one 2009 We all die. The goal isn't to live forever, the goal is to create something that will. In the end, your life will flash before your eyes. Make sure it is worth watching.

[Noxious89123]

Had the same thing with my bike last week. New pads and discs means the pistons are pushed further into the calipers than normal, so the cru that has built up on them gets pushed into the caliper and makes them stick.

Mine weren't too bad, they wre just dragging a bit.
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'06 Honda CBR125RW-6 ~ '00 Honda CBR600F-Y ~ '07 Honda CBR600RR-7 ~ Bikeless
'53 Ford Ka 1.3 ~ '03 Vauxhall Astra SRi 1.8 ~ '52 Vauxhall Astra SRi 2.2 ~ '53 Vauxhall Astra GSi

[CaNsA]

Got the train to work today cos i was shattered after moving the new bikes into the house. Phone the bike shop and said that the front brake seized up.
He said
"yeah, that can happen when u dont bleed them or give them a clean when u put new pads on"
i said
"didnt you do that when u fitted my pads then?"
he said
"ill send some-one round 2morrow morning @ 10:30 to sort it out"
LOL
OWND

[Thom]

i think the problem is yourself and what you actually asked to have done.

I've found with any mechanic you have to state EXACTLY what you want doing because fitting new pads doesnt necceserily means changing the seals, fluid or even cleaning the caliper.

So if you simply asked for new brake pads then thats why,.
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Current Bike: 1996 Yamaha TRX850 (The Japanese-Ducati One).
Previous Bikes: 1990 Honda NSR125 'Rothmans' (The smoking one), 1990 Suzuki GS500e 'Caf? fighter' (The loud one), 1987 Kawasaki GPX400r (The quick one), 1997 XJ600s Diversion (The reliable one), 2000 Kawasaki ER-5 (The spontaneously combustive one)

[Ben.]

[craigs23]

[sickpup]

[craigs23]

[Kickstart]

Hi

It is the pistons that are sticking, or (being a sliding caliper) is it the pins the caliper slides on. Sticking on the pins seem to be more common.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[smegbrains]

[the grim reaper]

There is one other thing that no-one seems to check these days that is the principal cause of seized brakes and that is the grooves behind the seals. Brake fluid crystallises behind the seals and this clamps the pistons tighter in the seals. It is rare that seals actually need replacing, certainly the main seals anyway, normally a strip down and clean of the grooves will stop brakes binding.

Cheers

Grim
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