Pantdino
Low Mileage
CONTINUATION OF THE FRONT CALIPER SAGA-- I started a new thread because it is a different problem really.
Hi again,
Well, I got the new alloy part installed in the steel part with the spring-loaded pin in position as it should be.
But after hooking up the brake line and stepping on the brake pedal a few times to move the piston against the (nearly new) pads, I can't turn the rotor. Flushing the caliper did not yield any rusty fluid or other debris noticeable in the bleed line.
In my experience this means the piston is frozen and is in need of rebuilding or replacement, but this is a NEW caliper.
However, there was some dried powder like stuff beneath the protective cap thing in the hole where the banjo bolt goes, so if that was totally dried up assembly lube this caliper might have been made 20 yrs ago.
Taking out the shims that hold the caliper assembly to the carrier solves the problem 90%.
I can't depress the piston back into the caliper with my thumbs, but I was not able to open the bleed screw as I did so, so I'm not sure if that means anything.
Am I doing something wrong with the shims? Is there an upper and lower one, or are they the same?
If there is nothing special about the shims I guess I'll have to disassemble the whole thing and take the piston out of the new caliper.. Maybe it's bound up with that powdery stuff I saw in the brake line hole.
Thanks again,
Jim
Hi again,
Well, I got the new alloy part installed in the steel part with the spring-loaded pin in position as it should be.
But after hooking up the brake line and stepping on the brake pedal a few times to move the piston against the (nearly new) pads, I can't turn the rotor. Flushing the caliper did not yield any rusty fluid or other debris noticeable in the bleed line.
In my experience this means the piston is frozen and is in need of rebuilding or replacement, but this is a NEW caliper.
However, there was some dried powder like stuff beneath the protective cap thing in the hole where the banjo bolt goes, so if that was totally dried up assembly lube this caliper might have been made 20 yrs ago.
Taking out the shims that hold the caliper assembly to the carrier solves the problem 90%.
I can't depress the piston back into the caliper with my thumbs, but I was not able to open the bleed screw as I did so, so I'm not sure if that means anything.
Am I doing something wrong with the shims? Is there an upper and lower one, or are they the same?
If there is nothing special about the shims I guess I'll have to disassemble the whole thing and take the piston out of the new caliper.. Maybe it's bound up with that powdery stuff I saw in the brake line hole.
Thanks again,
Jim