Worst comes to worse, you can grind/ break the heads of the bolts off the
cylinder Then use new hardware with the new cylinder.

My trick for getting tubing nuts off is this.

First place a tubing wrench on the nut. Then take vise grips and close them
over the wrench.
The vise grips keep the wrench from flexing open as you bust the nut loose.
Use big enough vise grips and you can prevent rounding off the nut.

Erich

"Denny B" > wrote in message
...
>
> "jjjsan" > wrote in message
> lkaboutautos.com...
> > They can get pitted by rust deposits and can leak when seals get to
> that
> > spot. Honing cyclinder can clean up surface pits. Seals can leak
> after
> > old age.
> > Most just replace the entire cyclinder assy.
> > Best to flush out and bleed old brake fluid once in awhile to keep
> the
> > moisture out of fluid.
>
> I am tempted to replace the cylinders and really want to.
> The only problem is I am not sure if I can undo the 2 bolts that
> hold the cylinder to the backing plate, and also undo
> the hydraulic line nut that attaches to the cylinder.
> If I knew these were not rusted on, I would change the
> cylinders in a flash. Bleeding the system is no problem.
>
> Denny B
>
>
>