replacing brake pads/rotors

[mikem]

I'm almost finished replacing my front pads and rotors and I've run into a problem.

I can't get one of the cylinders to compress to put in new pads.

I've completed one wheel already and am trying to finish the second wheel. I used a C-clamp to compress one cylinder in the caliper but I can't get the second cylinder to move.

Does anyone have any advice? I need to get this done tonight.

Thanks,

Mike

 

[dave-t]

I'm almost finished replacing my front pads and rotors and I've run into a problem.

I can't get one of the cylinders to compress to put in new pads.

I've completed one wheel already and am trying to finish the second wheel. I used a C-clamp to compress one cylinder in the caliper but I can't get the second cylinder to move.

Does anyone have any advice? I need to get this done tonight.

Thanks,

Mike

Is the piston going straight in? Did you open the top of your fluid reservoir? D1? D2?

 

[mikem]

Is the piston going straight in? Did you open the top of your fluid reservoir? D1? D2?

It's a D2.

The reservoir has been opened.

As far as I can tell, the piston is straight.

 

[Bouvier]

As long as there is no binding or other mechanical reason I guess you could loosen the bleed screw while pressing. Not sure if thats right but its likely what I would try.

 

[RichardS]

There is a tool you can get from auto parts places that will help push the piston back in. I just use a Bessy K body woodworking clamp. A c-clamp would work as well but you might have to use a piece of wood or metal to make sure pressure is applied across the whole piston, not just one side. If it does not move with reasonable force from a clamp then it might be time for new pistons and seals.