Calipers have weird "stuff" on them...

JAYNO20 · 08-04-2012, 02:37 AM

Any ideas how I might be able to remove this? I would like them to be shiny again, this **** makes me sad...

1st · 08-04-2012, 02:40 AM

I say remove the rim and get to wiping them down. Make it a habit of wiping them down every time you wash your car and rims.

MightyBobo · 08-04-2012, 02:43 AM

That is your brake fluid weeping. Make sure your valves are tight. As for cleaning them, probably some extensive work...I'd ask Mike the powder coater. He cleans and preps then regularly...

This happens at the track regularly btw.

Sent from my Galaxy S3

MightyBobo · 08-04-2012, 02:52 AM

Btw, that's pretty much into the clear coat of the caliper, so it won't wipe off.

Sent from my Galaxy S3

Mike · 08-04-2012, 05:25 AM

thats permanent staining, nothing you can do other than complete repaint/powdercoat. Are you tracking the car?

DCNISMO · 08-04-2012, 10:23 AM

I would be more concerned about why the brakes are weeping by the bleeder screws. Did you flush them recently? Were they over tightened??

JAYNO20 · 08-04-2012, 06:33 PM

Not tracking the car... It hasn't leaked that I have seen. Maybe before I bought the car... Any chance buffing them will help at all or getting powdercoated my only option.

Mike · 08-04-2012, 07:16 PM

you can try some buffing compound, but I don't think it will do anything for you. You can also try to get it warrantied at your dealership (long shot)

Rusty · 08-04-2012, 10:53 PM

What did you wash the wheels with? Some of the washs out there will stain if you don't rinse it good.

JAYNO20 · 08-04-2012, 11:58 PM

Quote:

Originally Posted by Rusty

What did you wash the wheels with? Some of the washs out there will stain if you don't rinse it good.

That's what I am thinking MIGHT have happened... Can't remember if they were like that when I bought it or not.

What do you think the odds of the dealership covering this under warranty are?

MightyBobo · 08-05-2012, 01:35 AM

Quote:

Originally Posted by JAYNO20

That's what I am thinking MIGHT have happened... Can't remember if they were like that when I bought it or not.

What do you think the odds of the dealership covering this under warranty are?

It's not a cleaner - it's definitely heated brake fluid that weep-ed and went down your caliper. I had it on mine, and it was EXACTLY the same. No doubt, Mike's seen it a ton of times himself.

Ask your seller if he ever pushed the brakes hard, or have you pushed them pretty hard yourself?

Mike · 08-05-2012, 10:35 AM

My theory is that when the brakes get hot, the caliper expands slightly and allows just a trace of fluid to leak out around the threads. On the track, I got the stock calipers hot enough to melt the powdercoat on my wheels and they can even get fairly hot with aggressive street or mountain driving.

I get this even on my stoptechs, but they are anodized, so it doesn't stain them.

MightyBobo · 08-05-2012, 06:27 PM

Quote:

Originally Posted by Mike

My theory is that when the brakes get hot, the caliper expands slightly and allows just a trace of fluid to leak out around the threads. On the track, I got the stock calipers hot enough to melt the powdercoat on my wheels and they can even get fairly hot with aggressive street or mountain driving.

I get this even on my stoptechs, but they are anodized, so it doesn't stain them.

This all reminds me that I should seriously pick up the stillen brake cooling kit before my HPDE at Summit in October...

JAYNO20 · 08-06-2012, 12:37 AM

Quote:

Originally Posted by MightyBobo

It's not a cleaner - it's definitely heated brake fluid that weep-ed and went down your caliper. I had it on mine, and it was EXACTLY the same. No doubt, Mike's seen it a ton of times himself.

Ask your seller if he ever pushed the brakes hard, or have you pushed them pretty hard yourself?

I haven't pushed them hard (at least I don't think I pushed them hard enough to have this happen).

Anyone care to give me a clue how likely it is the dealer would cover this? They just recently replaced a broken gas door lock mechanism that was broken when I bought it, but they did it under warranty without asking any questions so maybe this caliper thing isn't too far off?

MightyBobo · 08-06-2012, 02:01 AM

Quote:

Originally Posted by JAYNO20

I haven't pushed them hard (at least I don't think I pushed them hard enough to have this happen).

Anyone care to give me a clue how likely it is the dealer would cover this? They just recently replaced a broken gas door lock mechanism that was broken when I bought it, but they did it under warranty without asking any questions so maybe this caliper thing isn't too far off?

It's worth a shot, that's for sure. You could argue your brake bleeder valve is leaking for no reason and as such, it permanently stained the finish on the calipers.

08-04-2012, 02:37 AM	#1 (permalink)
JAYNO20 Track Member Join Date: Mar 2012 Location: Pittsburgh, PA Posts: 802 Drives: 2010 370Z Nismo Rep Power: 14	Calipers have weird "stuff" on them... Any ideas how I might be able to remove this? I would like them to be shiny again, this ** makes me sad... __________________ 2010 Solid Red NISMO #0334 - SOLD 2014 Red Hot** Camaro ZL1

08-04-2012, 02:43 AM	#3 (permalink)
MightyBobo A True Z Fanatic Join Date: Feb 2009 Location: Las Vegas, NV Posts: 8,465 Drives: No cars; only bikes Rep Power: 52	That is your brake fluid weeping. Make sure your valves are tight. As for cleaning them, probably some extensive work...I'd ask Mike the powder coater. He cleans and preps then regularly... This happens at the track regularly btw. Sent from my Galaxy S3 __________________ I don't own a car anymore.

08-04-2012, 02:52 AM	#4 (permalink)
MightyBobo A True Z Fanatic Join Date: Feb 2009 Location: Las Vegas, NV Posts: 8,465 Drives: No cars; only bikes Rep Power: 52	Btw, that's pretty much into the clear coat of the caliper, so it won't wipe off. Sent from my Galaxy S3 __________________ I don't own a car anymore.

08-04-2012, 05:25 AM	#5 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	thats permanent staining, nothing you can do other than complete repaint/powdercoat. Are you tracking the car? __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

08-04-2012, 06:33 PM	#7 (permalink)
JAYNO20 Track Member Join Date: Mar 2012 Location: Pittsburgh, PA Posts: 802 Drives: 2010 370Z Nismo Rep Power: 14	Not tracking the car... It hasn't leaked that I have seen. Maybe before I bought the car... Any chance buffing them will help at all or getting powdercoated my only option. __________________ 2010 Solid Red NISMO #0334 - SOLD 2014 Red Hot Camaro ZL1

08-04-2012, 02:40 AM	#2 (permalink)
1st A True Z Fanatic Join Date: Jul 2012 Location: I 80 Biz U.S. 50 Posts: 1,708 Drives: Platinum Z Rep Power: 1616	I say remove the rim and get to wiping them down. Make it a habit of wiping them down every time you wash your car and rims.

08-04-2012, 10:23 AM	#6 (permalink)
DCNISMO Track Member Join Date: Nov 2011 Location: washington dc Posts: 995 Drives: Nismo Z Rep Power: 179	I would be more concerned about why the brakes are weeping by the bleeder screws. Did you flush them recently? Were they over tightened??

08-04-2012, 07:16 PM	#8 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	you can try some buffing compound, but I don't think it will do anything for you. You can also try to get it warrantied at your dealership (long shot) __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

08-04-2012, 10:53 PM	#9 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,184 Drives: 2011 Nismo GM 6M Rep Power: 2684437	What did you wash the wheels with? Some of the washs out there will stain if you don't rinse it good. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

08-05-2012, 10:35 AM	#12 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	My theory is that when the brakes get hot, the caliper expands slightly and allows just a trace of fluid to leak out around the threads. On the track, I got the stock calipers hot enough to melt the powdercoat on my wheels and they can even get fairly hot with aggressive street or mountain driving. I get this even on my stoptechs, but they are anodized, so it doesn't stain them. __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

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