If you have a FI car regarding the rear end. - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

DeOppressorLiber · 12-13-2013, 05:07 PM

Just a heads up check your rear diff fluid.

TemeCal · 12-13-2013, 05:15 PM

Quote:

Originally Posted by DeOppressorLiber

https://www.dropbox.com/s/xw6khfda50...213_122609.jpg

That's how mine looked after 3k miles without FI. I don't think the rear-end is toast...but do agree the fluids should be changed after break-in. If you search, you'll see everyone has these shavings their first diff and trans fluid change.

Drift-Office · 12-13-2013, 05:45 PM

I've got 19K miles on mine, down to Vegas and back, LA and back, no whine... yet!

Bob @ Drift-Office, LLC

TemeCal · 12-13-2013, 05:48 PM

While I agree it shouldn't be normal, I've seen it on numerous cars...including mine and my brother's car.

Besides our cars seeing this, here are a few more pictures/posts with the same issue.
http://www.ft86club.com/forums/showp...0&postcount=22
http://www.ft86club.com/forums/showp...01&postcount=1
http://www.ft86club.com/forums/showp...5&postcount=45

...but I do agree, it shouldn't be considered "normal". I personally don't feel good about mine having shavings in it...but at least I'm not the only one seeing this.

TemeCal · 12-13-2013, 05:52 PM

Is Toyota replacing it under warranty, even though you have a turbo installed? Just curious. I realize it happened before the turbo kit was installed, just wondering if Toyota is giving you a hard time.

Thanks

jamesm · 12-13-2013, 05:56 PM

when i replaced my diff fluid after a couple thousand miles (some of which were turbocharged, though i was just babying it around at the time on a rough tune) i saw the exact same thing. the sky isn't falling.

Xero-Limit · 12-13-2013, 05:59 PM

It's concerning when you first see it, but that's normal to see that on the drain plug from break-in. But if the rear is whining you may have some other problem back there.

xjohnx · 12-13-2013, 06:05 PM

mine looked the same. diff's fine.

diss7 · 12-13-2013, 08:07 PM

If you're giving the diff a hard time, you have a few choices
Change fluid more often
Increase oil capacity
Install diff oil cooler

I changed my diff oil when I put the 2 way in. I plan on changing the diff oil every 10,000kms. Preventative maintainence

CSG David · 12-13-2013, 09:08 PM

Quote:

Originally Posted by diss7

If you're giving the diff a hard time, you have a few choices
Change fluid more often
Increase oil capacity
Install diff oil cooler

I changed my diff oil when I put the 2 way in. I plan on changing the diff oil every 10,000kms. Preventative maintainence

Like diss7 said, changing the fluid change frequency is probably your best bet to find out if the whine goes away. A little whine is okay btw, but a very loud whine is not.

FT-86 SpeedFactory · 12-13-2013, 09:16 PM

We're on a pretty regular schedule on changing both our cars. Just like changing oil in the motor, the trans and read end need some love too.

Poodles · 12-14-2013, 02:03 AM

I'm unsure how these diffs are when first manufactured, but most of the ring and pinions I've seen that are brand new are rough enough to file your fingernails on. It takes quite a long time for that to fully wear in and become polished and smooth...

mfbmike · 12-14-2013, 04:14 AM

OP is freaking out and inevitably others who see normal shavings on their drain plugs when changing fluids are going to assume their diff grenaded too.

derp

OjiGeorge · 12-14-2013, 06:15 AM

Tons of shavings on mine when I changed it at 10k... I think it's pretty well established here that the rear end is going to have a lot of shavings your first few changes... disregard the service manual, and change the fluid more frequently, at least in the early days. Toyota/subaru must have been conscious of this, as they put in a magnetic plug, they knew there were going to be a bunch of shavings to collect.

The whining is another issue. You should see if it persists after the fluid change.

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12-13-2013, 05:45 PM	#3
Drift-Office Senior Member Join Date: May 2012 Drives: AE86 / FRS / FC3S / GC8 / S14 / R32 Location: Auburn, WA Posts: 789 Thanks: 633 Thanked 1,431 Times in 372 Posts Mentioned: 169 Post(s) Tagged: 2 Thread(s)	I've got 19K miles on mine, down to Vegas and back, LA and back, no whine... yet! Bob @ Drift-Office, LLC

12-13-2013, 05:48 PM	#4
TemeCal Senior Member Join Date: Aug 2012 Drives: 86 Location: US Posts: 686 Thanks: 377 Thanked 303 Times in 181 Posts Mentioned: 27 Post(s) Tagged: 1 Thread(s)	While I agree it shouldn't be normal, I've seen it on numerous cars...including mine and my brother's car. Besides our cars seeing this, here are a few more pictures/posts with the same issue. http://www.ft86club.com/forums/showp...0&postcount=22 http://www.ft86club.com/forums/showp...01&postcount=1 http://www.ft86club.com/forums/showp...5&postcount=45 ...but I do agree, it shouldn't be considered "normal". I personally don't feel good about mine having shavings in it...but at least I'm not the only one seeing this.

12-13-2013, 05:52 PM	#5
TemeCal Senior Member Join Date: Aug 2012 Drives: 86 Location: US Posts: 686 Thanks: 377 Thanked 303 Times in 181 Posts Mentioned: 27 Post(s) Tagged: 1 Thread(s)	Is Toyota replacing it under warranty, even though you have a turbo installed? Just curious. I realize it happened before the turbo kit was installed, just wondering if Toyota is giving you a hard time. Thanks

12-13-2013, 05:56 PM	#6
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,293 Times in 1,180 Posts Mentioned: 313 Post(s) Tagged: 4 Thread(s)	when i replaced my diff fluid after a couple thousand miles (some of which were turbocharged, though i was just babying it around at the time on a rough tune) i saw the exact same thing. the sky isn't falling.

12-13-2013, 05:59 PM	#7
Xero-Limit Join Date: Nov 2012 Drives: JDL Turbo FRS, 335SC BRZ (ret) Location: Lehigh Valley, PA Posts: 932 Thanks: 368 Thanked 1,547 Times in 525 Posts Mentioned: 380 Post(s) Tagged: 6 Thread(s)	It's concerning when you first see it, but that's normal to see that on the drain plug from break-in. But if the rear is whining you may have some other problem back there.

12-13-2013, 06:05 PM	#8
xjohnx Grip>Slip Join Date: Jun 2012 Drives: 13 SWP BRZ Ltd - Innovate Powered! Location: RVA Posts: 3,563 Thanks: 656 Thanked 1,716 Times in 1,031 Posts Mentioned: 45 Post(s) Tagged: 3 Thread(s)	mine looked the same. diff's fine.

12-13-2013, 08:07 PM	#9
diss7 Banned Join Date: Sep 2012 Drives: AE86, 2x GT86, TE27 Location: Christchurch NZ Posts: 1,478 Thanks: 826 Thanked 1,179 Times in 522 Posts Mentioned: 33 Post(s) Tagged: 0 Thread(s)	If you're giving the diff a hard time, you have a few choices Change fluid more often Increase oil capacity Install diff oil cooler I changed my diff oil when I put the 2 way in. I plan on changing the diff oil every 10,000kms. Preventative maintainence

12-13-2013, 09:16 PM	#11
FT-86 SpeedFactory Join Date: Jul 2012 Drives: 2013 Scion FR-S Location: Des Moines, IA Posts: 7,694 Thanks: 1,298 Thanked 3,578 Times in 1,253 Posts Mentioned: 341 Post(s) Tagged: 5 Thread(s)	We're on a pretty regular schedule on changing both our cars. Just like changing oil in the motor, the trans and read end need some love too.

12-14-2013, 02:03 AM	#12
Poodles Senior Member Join Date: Oct 2013 Drives: 2015 Series.Blue Location: Fort Worth, TX Posts: 1,781 Thanks: 88 Thanked 781 Times in 481 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	I'm unsure how these diffs are when first manufactured, but most of the ring and pinions I've seen that are brand new are rough enough to file your fingernails on. It takes quite a long time for that to fully wear in and become polished and smooth...

12-14-2013, 06:15 AM	#14
OjiGeorge Senior Member Join Date: Jul 2012 Drives: White 2013 FRS Location: Langley, BC Posts: 450 Thanks: 441 Thanked 146 Times in 92 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Tons of shavings on mine when I changed it at 10k... I think it's pretty well established here that the rear end is going to have a lot of shavings your first few changes... disregard the service manual, and change the fluid more frequently, at least in the early days. Toyota/subaru must have been conscious of this, as they put in a magnetic plug, they knew there were going to be a bunch of shavings to collect. The whining is another issue. You should see if it persists after the fluid change.

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