Opinions on my rotors, por favor!

killrain · 04-21-2016, 07:56 PM

So noticed my rotors (14,500 miles) have started to get grooves, but only the left side. I can run my fingernail down the and it will catch. Should I get them resurfaced, new pads or let them be? Have noticed slight shaking on the left side to when braking but also a little while driving. May need a slight alingment, stupid roads. Thanks all!

rotor1.jpg

rotor2.jpg

B&W_Evader · 04-22-2016, 08:55 AM

My opinion, if it's not causing any vibration or noise, don't worry about it. I get those all the time. Your pads may be running thin and the rivets may be starting to rub. Maybe not too. Sometimes it's just a piece of metal in the semi-metallic pads. Could be a small pebble got in there too. I just run till the rivets start making the grinding noise. Then bring it all back to spec with new pads and rotors. I change rotors since I wear the heck out of them with the XP8 pads.

killrain · 04-22-2016, 01:00 PM

Sweet! I always like to get second opinions from people that have had the same experience. Thank you.

Slartibartfas · 04-22-2016, 03:42 PM

Your swept area, thus your braking force, is reduced slightly. SLIGHTLY.

bhandy · 04-23-2016, 12:29 PM

We have to constantly and consistently bed-in the pads and rotors. That's the first plan of action. Our rotors need a grey color on them. I just bought brake motive rotors and stoptech pads and braided lines.

kenchan · 04-23-2016, 03:04 PM

my G has the factory brembo's and the rotors look like dat. no issue though, brakes firmly still. i wouldnt worry about it and maybe get them replaced when ur pads are done.

SouthArk370Z · 04-23-2016, 06:33 PM

Hard spots in the pad and rivets usually cause just one groove. My guess is that you've got some trash embedded in the pad that is hard enough to eat away the rotor. If it were me, I'd resurface the pad(s) and rotor (or replace them if worn bad enough). I have heard of problems like this resolving themselves but, in most case, it just gets worse.

killrain · 04-23-2016, 10:30 PM

I'll probably just leave as is until I replace the pads or inspect the pads and see if there is any junk on them. OR, just wait till I upgrade rotors, pads and lines. We shall see.

killrain · 07-18-2016, 05:04 PM

A while back i took the wheels off and noticed a pebble in between the pad and rotor. After removing it i still am getting shaking/pulling on the left side. Perhaps resurface rotor?

SouthArk370Z · 07-18-2016, 06:46 PM

Quote:

Originally Posted by killrain

A while back i took the wheels off and noticed a pebble in between the pad and rotor. After removing it i still am getting shaking/pulling on the left side. Perhaps resurface rotor?

While resurfacing may work, OEM-spec rotors are not expensive. Just get a new rotor.

killrain · 07-18-2016, 07:00 PM

^this is a valid statement..........unless you have some free stoptech slotted rotors!

04-21-2016, 07:56 PM	#1 (permalink)
killrain A True Z Fanatic Join Date: Feb 2016 Location: san antonio tx Posts: 1,433 Drives: 2013 370z sport Rep Power: 349779	Opinions on my rotors, por favor! So noticed my rotors (14,500 miles) have started to get grooves, but only the left side. I can run my fingernail down the and it will catch. Should I get them resurfaced, new pads or let them be? Have noticed slight shaking on the left side to when braking but also a little while driving. May need a slight alingment, stupid roads. Thanks all! rotor1.jpg rotor2.jpg

04-22-2016, 08:55 AM	#2 (permalink)
B&W_Evader Track Member Join Date: Aug 2011 Location: CA Posts: 972 Drives: slower than before Rep Power: 386	My opinion, if it's not causing any vibration or noise, don't worry about it. I get those all the time. Your pads may be running thin and the rivets may be starting to rub. Maybe not too. Sometimes it's just a piece of metal in the semi-metallic pads. Could be a small pebble got in there too. I just run till the rivets start making the grinding noise. Then bring it all back to spec with new pads and rotors. I change rotors since I wear the heck out of them with the XP8 pads. Brendan likes this. __________________ \|RIP\|6spd-sport\|OSG-LSD\|XP8\|RBF600\|Eibach Sways\|RE-71R\|FI-34Row\|Gen3-CAI\|Yaw P.S.\|

04-22-2016, 03:42 PM	#4 (permalink)
Slartibartfas Track Member Join Date: Apr 2016 Location: Houston Posts: 551 Drives: 2011 G37S sedan Rep Power: 10	Your swept area, thus your braking force, is reduced slightly. SLIGHTLY. __________________ 2011 Journey Sport sedan 7AT \| SPL front, SPC rear camber arms \| ARK Grip cat-back \|

04-23-2016, 06:33 PM	#7 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	Hard spots in the pad and rivets usually cause just one groove. My guess is that you've got some trash embedded in the pad that is hard enough to eat away the rotor. If it were me, I'd resurface the pad(s) and rotor (or replace them if worn bad enough). I have heard of problems like this resolving themselves but, in most case, it just gets worse. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

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04-22-2016, 01:00 PM	#3 (permalink)
killrain A True Z Fanatic Join Date: Feb 2016 Location: san antonio tx Posts: 1,433 Drives: 2013 370z sport Rep Power: 349779	Sweet! I always like to get second opinions from people that have had the same experience. Thank you.

04-23-2016, 12:29 PM	#5 (permalink)
bhandy Base Member Join Date: Aug 2015 Location: Bakersfield, California Posts: 109 Drives: 2017 Red Nismo Auto Rep Power: 9	We have to constantly and consistently bed-in the pads and rotors. That's the first plan of action. Our rotors need a grey color on them. I just bought brake motive rotors and stoptech pads and braided lines.

04-23-2016, 03:04 PM	#6 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141520	my G has the factory brembo's and the rotors look like dat. no issue though, brakes firmly still. i wouldnt worry about it and maybe get them replaced when ur pads are done.

04-23-2016, 10:30 PM	#8 (permalink)
killrain A True Z Fanatic Join Date: Feb 2016 Location: san antonio tx Posts: 1,433 Drives: 2013 370z sport Rep Power: 349779	I'll probably just leave as is until I replace the pads or inspect the pads and see if there is any junk on them. OR, just wait till I upgrade rotors, pads and lines. We shall see.

07-18-2016, 05:04 PM	#9 (permalink)
killrain A True Z Fanatic Join Date: Feb 2016 Location: san antonio tx Posts: 1,433 Drives: 2013 370z sport Rep Power: 349779	A while back i took the wheels off and noticed a pebble in between the pad and rotor. After removing it i still am getting shaking/pulling on the left side. Perhaps resurface rotor?

07-18-2016, 07:00 PM	#11 (permalink)
killrain A True Z Fanatic Join Date: Feb 2016 Location: san antonio tx Posts: 1,433 Drives: 2013 370z sport Rep Power: 349779	^this is a valid statement..........unless you have some free stoptech slotted rotors!