Hope tech brake bleed advice

[ishaw]

Thanks for the detailed reply. They are the hope tech range, not tech 3s, though have a set of those but the ones in question are 2 pot with the lever adjusters.

I won't have time for a few weeks to further fettle, but have hunters lube and bleed kit, bit not the bore tools. I can probably suffice without and get the pistons out. Have some spares and steaks so if a clean fails I'll bite the bullet and replace.

 

[ishaw]

Finally had some time to tackle this.

Managed to do a strip and rebuild of the callipers, replaced the pistons and seals successfully (see pic of calliper after removing everything).

It would seem that despite doing this, nothing has really changed.

I've obviously bled the brake after the seal and piston replacement, but I'm still in the same boat.

Lever feel after bleed isn't the same as the rear, it feels like there's a bit of nothing initially when pulling the levers then it's biting on the rotor. There's not a lot of pull before the brake is stopping the wheel spinning. I'm also struggling to get it all aligned so the rotor is not rubbing on the pads.

I'm at a loss as I've done lots of hope breaks fine but the front has me stumped this time.

My son is desperate to start riding the bike but as it stands I can't get this front brake right.

What am I doing wrong?

Piston seals are brand new, seated right and lived with hunters. Pistons are new. Bleed process has been done a few times now, block between pistons, no air left in the system I think. Only other option I can think of is to do the seals in the lever but it seems fine as it is.

Any ideas or suggestions?

Going to have another stab tomorrow.

My last thought is the rotor isn't very true but I've tried to tune that with a tool too.