Technical Rear disc and pad change - 20v. :o/

[HP]

Anyone done this before?

Found the discs for under a tenner each at a local Motor Factors, pads were only £15 Better than the on line quote of £66 I'd had......

Aaanyway, the job didn't quite go as planned.
First, the inboard pads didn't fit so out with the Angle Grinder to take a little excess metal off. Easy.

Then, with a Haynes manual type "Simply screw the pistons back into the calipers" step left to do, thought I was there. Not so. Pistons would screw out, but would they hell screw back in, just spun free! Even nipped the flexi pipe and opened the bleed screw to let the fluid back out bit it was having none of it. Tried a clamp to push them back, tried all sorts. Ended up taking the caliper apart to see how the damn thing worked - the female part of the screw mechanism isn't rigidly fixed into the piston so there's little to stop it spinning instead of screwing back in. Thread was perfect, no marks etc. just a crap design IMO. Only way to get the piston back in was to simultaneously hammer and screw the little bleeder back in.

I assume a proper press-type tool with the correct thread is available, if so get one if you're doing them!

Job's all done now though, at least they don't twitter and squeak any more
Should be good for the MOT too, was only about 1/2" of disc face left on one side!

 

[T14086]

I use one of these,good for occasional use(about £10)fits onto 3/8 ratchet.

https://sslrelay.com/buypartsby.co.uk/sealey-tools/sealey-display.php?recordID=371

For the heavy duty hand wind type your looking at £20 odd.

 

[polecat]

I got caught out with some black diamond rear pads that would not fit. I ended up paying £51 for a set of rear pads from Fiat as I needed the car and it was a Sunday.

I have a brake cylinder winder but it seemed to be just pushing then in rather than winding them in.

You will need to try a moving handbrake test as this became very soft on mine. A full strip down is in my job queue.

 

[T14086]

Hang on..........on mondeos they wind different directions(one side clockwise other side anti-clockwise)just a thought?
Need to keep tightening the winder as you go along to keep pressure on piston,will soon go in easily enough.

 

[HP]

The handbrake feels fine, but think there might still be a little air in the system (always difficult bleeding them on your own!). There's slightly more pedal travel, but then again the pads were so badly rusted in I had to hammer and screwdriver them out - may be where the extra travel's coming from.

Had to do this to the pads:

 

[HP]

Hang on..........on mondeos they wind different directions(one side clockwise other side anti-clockwise)just a thought?
Need to keep tightening the winder as you go along to keep pressure on piston,will soon go in easily enough.

Had thought about that, but the Marea ones both seem to be clockwise to screw back in. Thought the job sounded easy enough, but it's a wee bit tricky! All I had to turn them was the key from an angle grinder think the proper tool would make life much easier.

 

[gadge]

i did the whole lot last week - both front and rear with new brake fluid.....i even had time to paint the calipers red the only thing that held me up was those bloody pistons!!!! :bang: but nothing a G clamp did'nt sort!

 

[FamilyGuy]

Re: Rear disc and pad change - 2.4TD. /

Arrhh those damned pistons!

Front brakes were a doddle but I spent all yesterday trying to do just one side. After several hours spent trying to wind the damn piston back in unsucessfully I resigned myself to a trip to the local garage to get them to fit them for me... started to put everything back together but the blasted piston had some how come out more! (On reflection I had experimented winding it in either direction so maybe that was my fault... :bang: )

So after a few moments' panic I managed to get hold of my dad's heavy duty G-clamps, which fortunately wound it in enough for me to put the old pads on again, however I had to use so much force to do up the clamps I completely twisted the G clamp

Anyway £36 to have it done is worth the 5+ hours I spent sat in a puddle huddling under a hastily put up tarp - after the heavens opened a couple of times...! :yuck:

My advice: GET/HIRE THE WINDING TOOL or take it to your local garage...

 

[euan]

Re: Rear disc and pad change - 2.4TD. /

Arrhh those damned pistons!

Front brakes were a doddle but I spent all yesterday trying to do just one side. After several hours spent trying to wind the damn piston back in unsucessfully I resigned myself to a trip to the local garage to get them to fit them for me... started to put everything back together but the blasted piston had some how come out more! (On reflection I had experimented winding it in either direction so maybe that was my fault... :bang: )

So after a few moments' panic I managed to get hold of my dad's heavy duty G-clamps, which fortunately wound it in enough for me to put the old pads on again, however I had to use so much force to do up the clamps I completely twisted the G clamp

Anyway £36 to have it done is worth the 5+ hours I spent sat in a puddle huddling under a hastily put up tarp - after the heavens opened a couple of times...! :yuck:

My advice: GET/HIRE THE WINDING TOOL or take it to your local garage...

I had the winding tool, but it simply refused to go back. Then "someone" tested the handbrake lever fully extending the piston so the winding tool wouldn't fit. I tried using a vice and a 1m hollow bar to tighten it up. Sadly the vice is no more. Piston didn't move more than a few mm, then sprung back. I resorted to what someone in another thread did. I took a large mallet and smashed the bleeding F$^£%" back in using the winding tool as a punch. To be honest I don't think it's going to work anymore. After bending the handbrake lever bracket back into shape, i refitted it. Surprising the handbrake actually seems to work on the wheel (in free motion off the ground). I don't know about the brakes yet.

I'm sure that pentagon nut is the key to everything. I bet if I get that off the other side the thing will either fall apart, and be ruined. Or it will magically push back in with the force of a knats fart.

 

[FiatExpert]

All Fiat brakes on the rear a a bast**d to wind back. Only the fiat stilos wind back different each side. As Said before buy a user it is a lot quicker to undo the bleed nipple on some occasions. Its not the piston, its the abs unit not allowing the fluid back.And the extra cut out on the pads for the inside one, is a swine to find the correct pads if fitting non - genuine.