Rebuilding calipers-72T

[NYNick]

This isn't all that difficult, despite all eight pistons fighting me tooth and nail to remove.
I got them all out, cleaned everything up, replaced the O-rings and boots and re-installed.

Of course, the last caliper gave me problems (front left). When I tightened it up, it would freeze the inside brake pad to the rotor. The hard lines have very tight tolerances, and I had to try a few times to either attach them first and then the caliper, or vice versa. Either way, the inside brake pad would freeze to the rotor.

Of course, I depressed the piston flush to the inside of the caliper, to alleviate that possibility. I had also measured the old rotor to see if it met spec, which it did, meaning it was plenty thick and pretty consistent.

I found some spacer type washers that I fit between the caliper bolt and the wheel hub, and that fixed the spacing problem. But...

I wonder. What's going on, and why?
Will my spacers resolve my issue? Why do I need them?

TIA

Nick

[john walker's workshop]

Is the inner race and the spacer still on the strut? nothing should have changed,

[NYNick]

Originally Posted by john walker's workshop

Is the inner race and the spacer still on the strut? nothing should have changed,

Thanks for the reply. I spent some time remeasuring the rotors and their distance from the mounting holes etc. after sleeping on it. One was a tad closer than the other, but nothing major. Plus, the rotor measurements didn't spell a warped rotor. Hmmm...

With a little fiddling and trial and error, I reinstalled the caliper with their original 1 washer spacer and it seems to be fine now. The other side never had a washer spacer.

Who knows how this magic works sometimes? One guess is I'm sharper in the AM than I am in the PM!

Thanks for the input.

Nick