Rear Caliper Pistons, Should Be Flush

Hi all, building a custom bike from alsorts of bikes and I have a VFR750 97 rear caliper question...

Had the caliper serviced, and just fitted new pads, the rotor is rubbing against the pads and I am not familiar with the caliper to know if this is normal ?

Took the caliper of just to check everything again and noticed the two pistons and not flush with the housing, is this normal for VFR750 ?

 

Photo attached this time

 

I'd say it's not right the pistons should go all the way in.
They should push in by thumb pressure alone.

 

Pistons have to go back in. Having no idea what or how to what you are mounting this it is a bit hard to know what is going on, it is fairly critical to get the caliper mounted perfectly square to the disc and the outer pad has to be just clear of the disc face so the pistons can bring the other pad up to the disc

 

They don't move with thumb pressure, I also wedged two metal plates and used an old metal chisel to lever them back and only moved may 1mm.

Think I need to connect them backup to the brake line , and pump them out with the brake pedal.

 

The calipar is mounted to a VFR750 swingarm, I have used all the original parts for the series/year to ensure it all bolts together without modding to much.

 

Try using a "G" clamp to push them back in, you might need one on each piston

 

Remove the pads, put a 1x4 board or a thin bit of metal in there across both pistons, then use a C-clamp to compress the pistons.

You may need to rebuild the caliper (new seals and clean up the pistons).

 

Haha... looks like we use the same methods.

 

If the piston s won't push back in with thumb pressure, I'd say you need new seals.

 

Looks normal to me as long as the pads are spaced far enough apart to slide over the rotor. :confused-new: