Dracoro Posted September 18, 2004 Share Posted September 18, 2004 Replacing rear pads this weekend but can't retract the piston on the rear calipers by hand. Is there a tool for this sort of thing or should a G clamp be good enough? Also is there anything I'm missing that's preventing me from retracting the piston using my hands? I've taken the cap off the brake fluid reservoir. The pads/calipers are granny ones I think (the matching pads from halfords say granny/scorpio or sierra w/abs.) Quote Link to comment Share on other sites More sharing options...
GaryD Posted September 18, 2004 Share Posted September 18, 2004 on some of the ford rear calipers you need a special tool to push the pistons back, they are on a slight screw thread. You can get ovet this by twisting the caliper clockwise whilst putting slight pressure on the piston or if in doubt halfords should be able to sell the proper tool at relatively cheap price. Hope this helps Quote Link to comment Share on other sites More sharing options...
Mat Jackson Posted September 18, 2004 Share Posted September 18, 2004 Yep you need a tool. Halfords sell them, as do most motor factors. It smply winds the piston back in. You will struggle to do it without the tool, Mat Quote Link to comment Share on other sites More sharing options...
pete g Posted September 18, 2004 Share Posted September 18, 2004 if you have not got the tool you can use long nose pliers ,you must push and turn clockwise at same time to wind back. Quote Link to comment Share on other sites More sharing options...
Man On The Clapham Omnibus Posted September 18, 2004 Share Posted September 18, 2004 I've had two Granadas and struggled to move the pads without the tool. With it, though, it's a doddle! Quote Link to comment Share on other sites More sharing options...
Kevin Wood Posted September 18, 2004 Share Posted September 18, 2004 When you've wound the piston back in ensure that one of the detents in the piston that the tool engages in lines up with the tab at the back of the brake pad. This is to ensure that the piston can't rotate when the pads are fitted but the pad won't seat properly unless the piston is aligned. I managed it using a strip of metal with 2 screws through it, to engage with the piston. The first caliper was a piece of cake but the second one made me wish I'd just bought the tool. Given the potential for damaging the rubber seals I'll probably buy the tool next time. Kevin Quote Link to comment Share on other sites More sharing options...
smithydar Posted September 18, 2004 Share Posted September 18, 2004 i have used an angle grinder disc changing tool before but it was still a struggle.get the right tool your gonna use it again. darren Quote Link to comment Share on other sites More sharing options...
davet Posted September 18, 2004 Share Posted September 18, 2004 august issue of which-kit has details on how to manufacture tool:) Quote Link to comment Share on other sites More sharing options...
Dracoro Posted September 19, 2004 Author Share Posted September 19, 2004 Cheers chaps. Off to get the tool. Need to get it done as I've not had my westie fix for two weeks since I wore the pads out at Brands. Quote Link to comment Share on other sites More sharing options...
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