Ah ha! That would explain the slot in the piston.

Thanks!

Honda Doc wrote:

> It has to be screwed back in while compressing.
>
> "Alan McLeod" <a.mcleod@sympatico.ca> wrote in message
> news:41AA4165.86E62671@sympatico.ca...
> > I am having a problem getting the piston on the rear disc to retract. Is
> > it somehow related to the emergency brake set up? Or is it seized?
> >
> > The car has 92,000km and this is the first brake job. The rotors are in
> > good shape and the discs are just starting to get to the wear bar point.
> >