A lot of brake dust on passenger rear wheel - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

DTMdreaming · 05-26-2018, 01:02 AM

The passenger side rear wheel on my FR-S has a lot more brake dust than the other wheels. I changed the rotors and pads about 6 months ago, however I did not clean and re-lubricate the slide pins. Could it be a stuck caliper? I had this problem on my Forester and that seemed to fix the problem but it was all 4 in that case. What are some of your thoughts? Thanks.

CraigVM · 05-26-2018, 03:32 AM

From the dozens of "how to" videos I have recently watched regarding brake jobs many have stated excessive dust being caused by stuck slider pins as you are suspecting. They also mention worn pistons causing the same by not receding and keeping the pads against the rotors. Perhaps a good way to test is a drive a bit then coasting to a stop maybe using a steep hill to do so. If the problem wheel has a warm / hot rotor while the other side does not ??

05-26-2018, 01:02 AM	#1
DTMdreaming Junior Member Join Date: Jan 2017 Drives: 13' Raven FR-S 6 sp-Manual Location: Cleveland, TN Posts: 2 Thanks: 0 Thanked 6 Times in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	A lot of brake dust on passenger rear wheel The passenger side rear wheel on my FR-S has a lot more brake dust than the other wheels. I changed the rotors and pads about 6 months ago, however I did not clean and re-lubricate the slide pins. Could it be a stuck caliper? I had this problem on my Forester and that seemed to fix the problem but it was all 4 in that case. What are some of your thoughts? Thanks.

05-26-2018, 03:32 AM	#2
CraigVM Member Join Date: Sep 2017 Drives: Car Collector Location: Pacific NW Posts: 76 Thanks: 26 Thanked 35 Times in 17 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Sounds like you nailed it From the dozens of "how to" videos I have recently watched regarding brake jobs many have stated excessive dust being caused by stuck slider pins as you are suspecting. They also mention worn pistons causing the same by not receding and keeping the pads against the rotors. Perhaps a good way to test is a drive a bit then coasting to a stop maybe using a steep hill to do so. If the problem wheel has a warm / hot rotor while the other side does not ??

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