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How bad is this rear brake rotor

 
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minghi



Joined: 01 Sep 2014
Posts: 2

PostPosted: Fri Sep 01, 2017 8:10 am    Post subject: How bad is this rear brake rotor Reply with quote

Hi, My wife took our '11 pathy to the local inspection place and they said it failed safety because the rotors were worn down below specs. I looked at it once she drove back home and think it's still good but I'm not sure; I've checked pads before and they were good but I'm not sure how to check the rotors. Here's couple pictures attached.


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HiBRiD109



Joined: 10 Feb 2017
Posts: 59

PostPosted: Fri Sep 01, 2017 11:04 am    Post subject: Reply with quote

Measure the rotors' thickness with a caliper.
According to smj, http://www.thenissanpath.com/viewtopic.php?t=8673&sid=5f438308efb2cb564976ab748ea5837f, the minimum thickness for the front rotor is 24.5mm (0.965") and rear rotor is 12mm (0.472").

But according to the tech manual for the 2011 its 26mm(1.024) and 16.0mm (0.630").


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'06 Pathfinder LE 4x4 - 160000mi - Yokohama Geolandar G015 265/65R17, NAV w/ Bose
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labsy



Joined: 02 Nov 2014
Posts: 246

PostPosted: Sun Sep 03, 2017 2:14 pm    Post subject: Reply with quote

Simply - if the groove between shiny and rusty area is near to 1mm on any side, then rotors are toast. Not just for inspection, but for your safety. Thinner rotors overheat and cool down when driven over a poodle faster, so there's mush more danger of warping or even cracking.
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2006 Pathfinder 2.5 dCi LE, Automatic transmission, European version
Stunning 235 HP with sport air filter, no DPF, EGR delete, ChipTunning + HHO Brown Gas injection.
GoodYear Wrangler Duratracs 265/70R17
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minghi



Joined: 01 Sep 2014
Posts: 2

PostPosted: Mon Sep 04, 2017 1:27 pm    Post subject: Reply with quote

Thank you both for replying. I looked at a youtube video online for changing rotors and couldn't believe it was so easy. Only trouble I'd in actual was removing the two 18mm bolts (they were rusted pretty bad on the head) and the rotor was rusted and almost falling apart near the edges. These were never changed and the truck has 86k miles on it, so I guess it's been overdue.. overall glad I changed them out while doing the pads (these oem's lasted exactly 3 years or 50k miles)
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