I wouldn't bother to try rebuilding your caliper, I've heard it's rarely successful and probably cost just as much in labour as buying a new or reconditioned caliper.
That’s true, thanks
I’ve been offered a set of rear Calipers and discs off an Ed30 for £50. They are used but all in good working order.
Do you think it’s worth it? I’m only worried about the case if after few months one of them seizes up as well, but Calipers shouldn’t just seize up right?
Unfortunately they do. The back of the car never gets hot and is a dirt trap, so calipers with handbrake mechanisms all go the same way. Golfs, Ford Focus etc.....any car that uses them.
One of mine seized so bad, the brake disc started turning blue/purple it got so hot! I thought it was a bit sluggish pulling away
When I replaced the wheel bearing on that side at a later date, it also looked a bit discoloured and all the grease had burnt away
In the end I needed 2 carriers, 2 calipers, 2 discs, new pads and 2 hard lines. That wasn't a cheap day
My advice, get new ones. Mine have been on there almost 5 years and still working nicely. I've tried the rebuild kits on my old MK4 and it's more the handbrake mechanism that doesn't back the piston out when you release it. It all just turns into one big seized mess. The 'rebuild' only lasted through 1 or 2 winters, tops.
The new TRW ones will be fine. Obviously a cheap tin of caliper paint will bring them up nicely