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Pushing back Caliper piston on Fiat Stilo


SupraDan24

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I changed the rear discs and pads on mt Gf's Fiat Stilo the other day, what a PITA it was getting the piston's back enough to put the caliper back on. You have to rotate the piston and push at the same time to move it back. Does anyone have a clever way of doing this, or a is there a proper tool for it? I ended up using one of those tools with the two pins on the end you use to tighten up a grinding disc to a grinder and getting the Mrs to tap the piston back repetedly with a hammer and an extension bar while i turned it. If i was by myself i dont think i would have managed it. I was thinking of getting one of my G clamps and tacking it on the ball joint on the end so the flat face would spin as you tighten it. I''m not sure if it would work though.

 

Dan

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Just a word of warning, they should wind back with ease. I have seen a few which have fought back and it normally results in a new calliper mate. Last one worked ok for a few days then the piston came out and locked the brake on. Keep an eye on it .

 

Hmm well the reason i changed them in the first place was they the passenger side rear was binding, on closer inspection the discs were fubard so i put it down to that rather than the piston seal in the caliper being shagged. I'll get her to keep an eye on it and make sure it doesnt start binding again and get her to check to see if that side is getting hotter than the other. I'll re-dress the caliper if it is.

 

Wind back tools come as left hand thread or right hand thread make sure you buy the right one....IMHO buy the tool its soooooooooomuch easier!

 

Hmm thats strange, i could have sworn they rotated back opposite ways to each other, ie the driver turned in clockwise, and the passenger anti clockwise. Is this normal??

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Hmm thats strange, i could have sworn they rotated back opposite ways to each other, ie the driver turned in clockwise, and the passenger anti clockwise. Is this normal??

 

Very normal, and that's what Movistar was saying, you have to turn one one way, and the other the opposite, left and right, anti clockwise and clockwise, not all cars are like that though. So you'll need a piston wind back tool kit that does both ways.

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I used a screwdriver. The piston had a serated fan edge, so I just put the bar of the screwdriver across 2 of them and rotated it 1/4 at a time. PITA but got there when I was in a jam. I now have a windback tool. The trouble is that most caliper designs are different so require a different style tool.

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Bugger, i'll try find one that can wind back both ways then. I got the job done in the end, it wasnt THAT bad, was just more of a PITA than it prob would have been if i'd had the right tool. If it wasnt for the pistons i would have had both sides done in half hour. I couldnt believe how cheap the parts were either, £39.50 for both rear discs and both sets of rear pads from ebay....billy bargain :D

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Just be careful, as I said... not all piston pusher inners will be compatible with all calipers. Nothing to do with the direction either, it has to do with the shape/access of the caliper vs the shape/access design of the wind back tool. The one I bought for my focus was hopeless on the 106.

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