Saturday and the sun is shining ....no footy
, so decided to play at being a mechanic.
Not content with all the myriad of parts from the back of the car in every corner of the house ......I removed some from the front
Wheels off, ( love my impact gun ) , and removed callipers, front hoses and discs.
Gave the brake line union a good soaking with penetrating fluid first, but no issues getting any of it undone.
I removed the calliper before undoing the hex drive screw that holds the disc on, which in normal practice would probably be better to do the other way round in case it was a bit seized. (That way the brakes would stop the disc from turning) Fortunately not an issue for me as I had undone the screws a while back and put a bit of anti-seize copper grease on the threads so they came off easily. Also screwed in two blanking off caps on to the brake lines to stop and drips of fluid
Back plates both ok so will clean them off later and give them a coat of paint.
Discs crap so just as well that they are being replaced.
So now I have 4 callipers
Next was to strip all the callipers down and check them. ( thanks to
@Alan Slade ‘s suggestion that has made for all this extra work
)
I used a bicycle pump to push the pistons out which was ok, but only because none of them were seized. If they had been stuck I don't think this would have worked.
I found an old plastic lilo adaptor which cut its own thread when I screwed it into the bleed valve hole. As the hoses are being replaced I cut the end off and screwed them back in and used a self tapper bung up the open end of the hoses.
Worked luckily, and the pistons popped out ok.
Findings.....Rear ones are clean and will just need flick over with a feather duster and replacement seals.
Front ones, .....one was ok(ish) and would probably clean up , but the other had loads of rust below the groove where the outer seal locates . So better to get two new pistons and seals for the front.
All the bores were ok, no scores or marks, so Monday, together with the carriers, they are all going to be sand blasted.
So in readiness for that, I put the pistons back in to protect the bores, put in the bleed valves, ( which are also being replaced), and the cut down hoses also put back in to protect the threads and stop sand getting inside the castings.
All boxed now in the back of the Kia ready to be dropped off.
Wont order the new bits until after they have been done just in case anything else is needed.
May do some more painting tonight ...Yawn!!..............and sometime I need to arrange to get the new bushes inserted.. ( in the beam and diff housing before I get any comments
)
) 
