A bit of an update. Now that the house is sort of sorted (or rather, getting there) I've had time to play a bit. Had a go at electrolytic rust removal on the caliper sleeve. Here's what we started with -
And here's what I ended up with -
That's almost usable.
I swear that this is the same sleeve.
And here's what I ended up with -
That's almost usable.
I swear that this is the same sleeve.