Caliper Sliding Pin - What Holds It In? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

elbles · 06-08-2014, 07:31 PM

Hi all,

I just did pads, rotors, and fluid yesterday, and 3 of the 4 wheels came out fine. The passenger front is sticking though, and generating quite a bit more heat than the others. It's not enough to notice it pulling, but the temperature was nearing 400 degrees F after a test run, after fixing what I thought was the problem (in one of the sliding pins).

After letting it cool down, and taking it apart again, I can't get the sliding pin to "spring" the way the top one does (the problematic one is the one closest to the ground).

In looking in the caliper carrier, I don't see any threading to match up with the threads embedded in the rubber portion of the sliding pin.

Any thoughts on what I'm doing wrong, or where I can get parts to get it working properly at nearly 7 PM on a Sunday?

wparsons · 06-08-2014, 07:38 PM

I might be picturing it wrong, but isn't the threaded part in the caliper itself? IIRC the bolt runs from the back of the caliper carrier through the slider into the caliper?

elbles · 06-08-2014, 08:02 PM

Yeah, the part that I'm having a problem with is the sliding pin in the caliper carrier itself--the top sliding pin goes down all the way, and when you give it a tug, it springs back down to the bottom of the caliper carrier.

The bottom one doesn't do that--I can push it in all the way to the bottom, but if I tug it the same way, it just pulls out. Nothing "pulls" it back to the bottom of the caliper carrier.

I'm probably explaining it poorly, but nothing I've done has got it working that way again, and I don't think I want to drive the car in this condition.

Thanks for the reply though.

celica73 · 06-08-2014, 09:27 PM

Just the rubber dust boots, if I'm thinking of the right part.

juliog · 06-08-2014, 09:41 PM

Replace the rubber dust boots and apply brake / high temperature grease. You can find both at your local pep boys..

elbles · 06-08-2014, 10:03 PM

Thanks guys. I had inadvertently pulled out one of the sliding pins on this wheel while putting the caliper back on, and while I had greased it back up, and even though it still felt "stiffer" than the other one, the other one held a vacuum or something.

Redoing *that* sliding pin got that rotor to within 10 degrees of the other one, rather than being over double the temperature.

Please excuse the not-so-mechanically-inclined. :-)

06-08-2014, 07:31 PM	#1
elbles Member Join Date: Aug 2012 Drives: 2013 Subaru BRZ Location: New England Posts: 42 Thanks: 4 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Caliper Sliding Pin - What Holds It In? Hi all, I just did pads, rotors, and fluid yesterday, and 3 of the 4 wheels came out fine. The passenger front is sticking though, and generating quite a bit more heat than the others. It's not enough to notice it pulling, but the temperature was nearing 400 degrees F after a test run, after fixing what I thought was the problem (in one of the sliding pins). After letting it cool down, and taking it apart again, I can't get the sliding pin to "spring" the way the top one does (the problematic one is the one closest to the ground). In looking in the caliper carrier, I don't see any threading to match up with the threads embedded in the rubber portion of the sliding pin. Any thoughts on what I'm doing wrong, or where I can get parts to get it working properly at nearly 7 PM on a Sunday?

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06-08-2014, 08:02 PM	#3
elbles Member Join Date: Aug 2012 Drives: 2013 Subaru BRZ Location: New England Posts: 42 Thanks: 4 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Yeah, the part that I'm having a problem with is the sliding pin in the caliper carrier itself--the top sliding pin goes down all the way, and when you give it a tug, it springs back down to the bottom of the caliper carrier. The bottom one doesn't do that--I can push it in all the way to the bottom, but if I tug it the same way, it just pulls out. Nothing "pulls" it back to the bottom of the caliper carrier. I'm probably explaining it poorly, but nothing I've done has got it working that way again, and I don't think I want to drive the car in this condition. Thanks for the reply though.

06-08-2014, 09:27 PM	#4
celica73 Senior Member Join Date: Jun 2012 Drives: '13 BRZ / '11 Outback / '06 Tundra Location: Durham NC Posts: 510 Thanks: 6 Thanked 155 Times in 104 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Just the rubber dust boots, if I'm thinking of the right part.

06-08-2014, 10:03 PM	#6
elbles Member Join Date: Aug 2012 Drives: 2013 Subaru BRZ Location: New England Posts: 42 Thanks: 4 Thanked 5 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Thanks guys. I had inadvertently pulled out one of the sliding pins on this wheel while putting the caliper back on, and while I had greased it back up, and even though it still felt "stiffer" than the other one, the other one held a vacuum or something. Redoing that sliding pin got that rotor to within 10 degrees of the other one, rather than being over double the temperature. Please excuse the not-so-mechanically-inclined. :-)

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