Brake pad replacement problem

carvell · Scuttler Joined: 05 Sep 2003 Karma :

Righty ho.

Trying to change the front brake pads on the bros, but have hit a little problem. Got the old pads out fine no problem, but when I put the new pads in, they almost touch and there's definately not enough space for the disc to go in between them.

I've tried to push the piston thingys back in with wedges of wood and all sorts, but they refuse to budge, if i get these to go back in there'll probably be enough room for the disc and new pads.

Any idea on anything I can try to get the pistons to go in? Open the bleed nipple maybe?

Thanks for any help.
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Yamaha TDM 850

WildGoose · White Van Man Joined: 20 Mar 2002 Karma :

shit bike innit Laughing

same reason my double HH pads are still on the floor and not in the caliper, if the bike doesnt want to be cooperative, then it can have lame brakes, i dont care Razz

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So in other words, he stopped you for being flagrantly in posession of a motorcycle in direct contravention of the Hippies, Darkies and People Whose Face I Don't Like The Look of (Police Powers) Act. 1976

carvell · Scuttler Joined: 05 Sep 2003 Karma :

I'm trying to fit £9.99 a pair lame brakes!

It doesnt even want them.
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Yamaha TDM 850

Robby · Dirty Old Man Joined: 16 May 2002 Karma :

Is it a 2 pot sliding caliper?

If so, force the pistons back in with a G cramp.

Claud 14.7 to 1 · World Chat Champion Joined: 06 May 2004 Karma :

Well if your sure that you have pushed them hard enough. When i did mine i had to push them in pretty hard...

Dont push them in quickly, only to the ammount you need...

Not sure how else, cant say anything else condifently enough .

carvell · Scuttler Joined: 05 Sep 2003 Karma :

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

G clamp does work quite well, but make sure you push the pistons in straight. Take the cap off the master cylinder to allow the fluid back, but take care that you do not get a fountain of brake fluid from it.

You can buy things to push the pistons back. Try Partco. Only trouble is that I have only seen ones designed for cars and the blades might be too thick to fit into the caliper.

All the best

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

carvell · Scuttler Joined: 05 Sep 2003 Karma :

Brake pads done and system bled with the help of a G clamp.

Thanks!
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Yamaha TDM 850