rear brake caliper

[Tom Christiansen]

George,

>I have the lisle brake piston tool that "screws" the piston back into
>the caliper.  There are different "bits" included that fit different
>pistons.  The pistons on my car are perfectly flat and have no dimples
>that these keyed "bits" will fit.  The pistons only have a six-sided
>hole in the center.  How do I push these pistons back into the
>calipers?  Which direction (clockwise or counterclockwise) do they turn
>while being "screwed" back in?

I'm not 200% sure, but I don't recall hearing about caliper pistons that
required to be rotated while pushed in. I've normally just pushed the
piston in. Remember to take the cap off the brake fluid reservoir while
pushing the piston back. Collect overflow fluid and discard at your local
recycling place. Do not re-use brake fluid.

>The Left Rear caliper doesn't seem to be working.  The disc is all
>rusty.  When the car is off the ground on four jackstands, and someone
>pushes the brake pedal, the Left Rear wheel can be turned easily by
>hand.  Do I have a bad caliper?

Sounds like either the caliper doesn't get any hydraulic pressure through
the brake line or the piston is stuck. I bet there's air in the brake line.

As someone else said, when working on brakes you're taking your life and
the life of others into your own hands. Make sure you know what you are
doing. Common sense applies.

My $0.02 worth.

Tom