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Tools for retracting claiper pistons

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Old Oct 5, 2004 | 04:46 AM
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Default Tools for retracting claiper pistons

I need two tools for retracting claiper pistons. One for the stock rear calipers and one for my 6 piston Wilwood kit in the front. Anyone know a place online I can order these from?

Thanks for any help.
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Old Oct 5, 2004 | 07:52 AM
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Not familiar with the 6-piston setup, but a block of wood and a c-clamp have always worked for me on front brakes.
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Old Oct 5, 2004 | 09:14 AM
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Use your fingers to pry back the calipers on the Wilwoods (make sure you unscrew the brake flud reservoir cap first). If they're stubborn and don't want to slide back, take one brake pad out and use it to push the piston back (you always want to have something on the other side so you don't warp your rotor).

For the rear go to a local auto parts store and in the tool section you'll find a generic brake tool that you attach to a 3/8" ratchet so you can turn the rear piston back (looks like a metal craps die with prongs sticking out of it). You can always use a small box end wrench turned on its side, in a pinch, too.
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Old Oct 5, 2004 | 10:28 AM
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For the stock rear calipers, just use a 3/8" ratchet, no other tools needed. It fits in perfectly, just be sure not to slip as you turn it.
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Old Oct 5, 2004 | 12:13 PM
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Thanks guys. These are the answers I needed.

Was also wondering if there is any such things as turning the piston too far back into the caliper? Someone mentioned that to me once and I was wondering if there was anything to it.
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Old Oct 5, 2004 | 12:37 PM
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Well, you can only turn it as far as it will go. But it is not necessary to turn it that far -- only turn it far enough to clear whatever pads you are installing. Why do more work than necessary?
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Old Oct 5, 2004 | 12:45 PM
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the rear have a cross shape on the piston. does that have to match up with the brake pad( peg) or will it match by itself
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Old Oct 5, 2004 | 01:21 PM
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Originally Posted by Conedodger,Oct 5 2004, 08:52 AM
Not familiar with the 6-piston setup, but a block of wood and a c-clamp have always worked for me on front brakes.
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Old Oct 5, 2004 | 02:06 PM
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Originally Posted by WPS,Oct 5 2004, 01:45 PM
the rear have a cross shape on the piston. does that have to match up with the brake pad( peg) or will it match by itself
I always turn the piston to a position where the peg on the pad falls in the "groove" when the caliper is put back on.
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Old Oct 5, 2004 | 02:15 PM
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Yes, you want to make sure the nub on the pad sits in one of the piston grooves, or the pads will wear unevenly, and the caliper itself may deform slightly under extreme use, causing uneven pad wear even when subsequent pads are properly installed.
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