Brakes....it's a GROOOVE thang!!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

idlafie · 12-19-2004, 12:43 AM

So my buddy & I go to do a 5 lug swap on his S13 rear rotors & this is what we find.....(see attached photo).

I've seen some weird shit happen with S13 & S14 rear brake pads & rotors, (abnormal pad wear, chewed up rotors, etc), but nothing like this before!!

How many of you can actually say you've seen a brake pad, (the pad itself), wear down over time & form a protruding groove (see orange at top of photo) in the pad material itself that actually cuts a rounded deep channel (see red at bottom of photo) into the metal rotor??

The pad material can't be THAT defective now can it?? My buddy thinks, (but is not sure), that the brake pads we removed today are old PBR Metal Masters, but he's not sure. It's been a while since he last swapped out his brake pads and he doesn't remember what he put in the last time he swapped out his pads & rotors.

Anyhow, after checking out the calipers & slider pins, (they checked out okay), we pretty much came to the conclusion that it was the pad material itself & not the calipers that caused the problem. If it were a caliper problem, the damage to the rotor would have been more equal throughout the rotor...the entire rotor would have been chewed up. However, if any one has more any insight on this, my buddy & I would definitely love to hear it.

ID
..still in shock over the channelled rotors..

BSeay · 12-19-2004, 07:29 PM

holy fuckin shit! damn thats some insane shit man.... you didnt hear the pads and what not eating your rotor?!

idlafie · 12-19-2004, 07:57 PM

Quote:

Originally Posted by idlafie

So my buddy & I go to do a 5 lug swap on his S13 rear rotors

Not my car...my buddy's car..yep...he knew about it...but he didn't care...he drove on them like that.... he figured he'd be doing a 5 lug swap sooner or later..

As for hearing any grinding noise..in the times i've ridden in his car...nope never heard any noise from the rotors...weird eh?

ID

yellow_jacket · 12-19-2004, 08:03 PM

I've seen this happen quite a bit. Seems to be from a defect in the pads. Material composition can be off a little sometimes.

ledzeppelin240 · 12-19-2004, 08:13 PM

It's amazing in what can happen under 5,000+ pounds of force. I have seen rotors that there is just the vents showing on one side, meaning the pad completely destroyed the fiction surface. The only thing the drivers ever complain about is an annoying sound under braking.

I know that if pads are even a bit forced in on our cars they can cause some stupid shit to happen. Not to sure on what would have caused your buddys brakes to do that...

240speed · 12-19-2004, 09:35 PM

Dang... thank God that he is doing the swap now. It could have been bad if he would have waited any longer.

Andrew Bohan · 12-19-2004, 10:00 PM

i saw some hawk blues take out a channel in stock rotors. it was like 1/8-1/4" deep

Namu · 12-20-2004, 02:05 PM

ID lafie is in the place to be!!!!!!!!!

hey man!

did you ever find out anything more about this
brake issue? when i get new tires/rims, i will probably do the
5 lug conversion too and that would be a good time to do the
350Z brake conversion too, no?

where you been? don't see you online much.

12-19-2004, 12:43 AM	#1
idlafie Zilvia Addict Join Date: Mar 2004 Location: ..So Cal.... Posts: 940 Trader Rating: (0) Feedback Score: 0 reviews	Brakes....it's a GROOOVE thang!!! So my buddy & I go to do a 5 lug swap on his S13 rear rotors & this is what we find.....(see attached photo). I've seen some weird shit happen with S13 & S14 rear brake pads & rotors, (abnormal pad wear, chewed up rotors, etc), but nothing like this before!! How many of you can actually say you've seen a brake pad, (the pad itself), wear down over time & form a protruding groove (see orange at top of photo) in the pad material itself that actually cuts a rounded deep channel (see red at bottom of photo) into the metal rotor?? The pad material can't be THAT defective now can it?? My buddy thinks, (but is not sure), that the brake pads we removed today are old PBR Metal Masters, but he's not sure. It's been a while since he last swapped out his brake pads and he doesn't remember what he put in the last time he swapped out his pads & rotors. Anyhow, after checking out the calipers & slider pins, (they checked out okay), we pretty much came to the conclusion that it was the pad material itself & not the calipers that caused the problem. If it were a caliper problem, the damage to the rotor would have been more equal throughout the rotor...the entire rotor would have been chewed up. However, if any one has more any insight on this, my buddy & I would definitely love to hear it. ID ..still in shock over the channelled rotors.. __________________ Weekend Mechanic for my Not-So-Mechanically-Inclined buddies....

12-19-2004, 07:29 PM	#2
BSeay Users Awaiting Email Confirmation Join Date: Mar 2003 Location: Richmond, VA Age: 41 Posts: 634 Trader Rating: (0) Feedback Score: 0 reviews	holy fuckin shit! damn thats some insane shit man.... you didnt hear the pads and what not eating your rotor?! __________________ 1995 240SX SE - Sold

12-19-2004, 08:13 PM	#5
ledzeppelin240 Zilvia Addict Join Date: Sep 2003 Location: Sinse Posts: 688 Trader Rating: (0) Feedback Score: 0 reviews	It's amazing in what can happen under 5,000+ pounds of force. I have seen rotors that there is just the vents showing on one side, meaning the pad completely destroyed the fiction surface. The only thing the drivers ever complain about is an annoying sound under braking. I know that if pads are even a bit forced in on our cars they can cause some stupid shit to happen. Not to sure on what would have caused your buddys brakes to do that... __________________ Anyway, no drug, not even alcohol, causes the fundamental ills of society. If we're looking for the source of our troubles, we shouldn't test people for drugs, we should test them for stupidity, ignorance, greed and love of power. Looking for: JDM S13 OEM Sideskirts

12-19-2004, 09:35 PM	#6
240speed Leaky Injector Join Date: Jul 2003 Location: SC Posts: 139 Trader Rating: (0) Feedback Score: 0 reviews	Dang... thank God that he is doing the swap now. It could have been bad if he would have waited any longer. __________________ ::::::::::::::::::::::: 95' 240sx

12-20-2004, 02:05 PM	#8
Namu Join Date: Nov 2004 Location: Central Cali - Santa Maria Posts: 20 Trader Rating: (0) Feedback Score: 0 reviews	ID lafie is in the place to be!!!!!!!!! hey man! did you ever find out anything more about this brake issue? when i get new tires/rims, i will probably do the 5 lug conversion too and that would be a good time to do the 350Z brake conversion too, no? where you been? don't see you online much. __________________ I'm selling my 240! 1992 with a 95 KA24DE swap, all kinds of upgrades, high-end stereo system, 17 in rims/tires,<br> beautiful custom vinyl interior...visit the webpage to see it! http://empireneptune.com/240

12-19-2004, 08:03 PM	#4
yellow_jacket Leaky Injector Join Date: May 2003 Location: GA Age: 46 Posts: 52 Trader Rating: (0) Feedback Score: 0 reviews	I've seen this happen quite a bit. Seems to be from a defect in the pads. Material composition can be off a little sometimes.

12-19-2004, 10:00 PM	#7
Andrew Bohan Post Whore! Join Date: Apr 2003 Location: Ohio Posts: 8,331 Trader Rating: (2) Feedback Score: 2 reviews	i saw some hawk blues take out a channel in stock rotors. it was like 1/8-1/4" deep