Another is it diff bushings

redondoaveb · 03-23-2019, 10:26 AM

Leaking diff bushings?

JARblue · 03-23-2019, 10:48 AM

Doesn't seem like much fluid there. But if the stock bushing is still there, then that's probably the culprit. I would check on the subframe member and see if you can identify the source of the fluid - if from the bushing, it will drip down the subframe member also.

There is a diff breather tube, but I thought it was on the RH side of the diff and wouldn't think that pattern of leaking fluid could be from it.

redondoaveb · 03-23-2019, 12:49 PM

After watching the beginning of this Youtube video it appears it's the start of the deterioration of the center bushing.
https://youtu.be/PZZA1bGpa9I

JARblue · 03-23-2019, 01:27 PM

The center bushing is the only one with fluid. None of the other diff bushings are fluid-filled.

It can leak slightly (as appears to be the case here) or it can explode (like mine did).

redondoaveb · 03-23-2019, 01:41 PM

Quote:

Originally Posted by JARblue

The center bushing is the only one with fluid. None of the other diff bushings are fluid-filled.

It can leak slightly (as appears to be the case here) or it can explode (like mine did).

Thanks, I'll break the bad news to my buddy.

Spooler · 03-23-2019, 01:53 PM

If the diff puks fluid it will come down right at the spring bucket toe adjustment on the left side. Those tears of shame are
coming from the diff bushing.

Rusty · 03-24-2019, 07:41 PM

The diff bushing has 2 chambers of silicone in it. From the looks of the picture. Only 1 chamber ruptured. Jar did both.

The diff breather is on the right side of the diff cover. The hose runs to the left, and stops inside of the sub-frame on the left center.

What I have found is that all of the silicone filled bushings on the Z has 2 chambers of silicone. The silicone bushings on the Z are, the front lower rear control arm bushings, The diff bushing, the front bushings on the rear sub-frame.

In the pic. You can see the diff breather hose. It's the little black hose, not the stainless hose.

redondoaveb · 03-24-2019, 08:09 PM

Quote:

Originally Posted by Rusty

The diff bushing has 2 chambers of silicone in it. From the looks of the picture. Only 1 chamber ruptured. Jar did both.

The diff breather is on the right side of the diff cover. The hose runs to the left, and stops inside of the sub-frame on the left center.

What I have found is that all of the silicone filled bushings on the Z has 2 chambers of silicone. The silicone bushings on the Z are, the front lower rear control arm bushings, The diff bushing, the front bushings on the rear sub-frame.

In the pic. You can see the diff breather hose. It's the little black hose, not the stainless hose.

Have you driven your car with the new subframe bushings yet?

Rusty · 03-24-2019, 08:13 PM

Quote:

Originally Posted by redondoaveb

Have you driven your car with the new subframe bushings yet?

No, it's still sitting on jack stands. I'm working on the front splitter. With just the SPL diff bushings. I couldn't really tell the difference with noise and vibes.

bunk · 03-24-2019, 09:43 PM

I saw this post and thought I'd check mine...looks like the tears on my face right now...

03-23-2019, 10:48 AM	#2 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Doesn't seem like much fluid there. But if the stock bushing is still there, then that's probably the culprit. I would check on the subframe member and see if you can identify the source of the fluid - if from the bushing, it will drip down the subframe member also. There is a diff breather tube, but I thought it was on the RH side of the diff and wouldn't think that pattern of leaking fluid could be from it. ZontheRocks and redondoaveb like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

03-23-2019, 12:49 PM	#3 (permalink)
redondoaveb A True Z Fanatic Join Date: Apr 2017 Location: So. Commiefornia Posts: 6,361 Drives: 2014 Nismo Gunmetal Rep Power: 2684374	After watching the beginning of this Youtube video it appears it's the start of the deterioration of the center bushing. https://youtu.be/PZZA1bGpa9I __________________ Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo 700+whp

03-23-2019, 01:27 PM	#4 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	The center bushing is the only one with fluid. None of the other diff bushings are fluid-filled. It can leak slightly (as appears to be the case here) or it can explode (like mine did). redondoaveb likes this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

03-23-2019, 01:53 PM	#6 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,800 Drives: 2013 Nismo 370z Rep Power: 2684392	If the diff puks fluid it will come down right at the spring bucket toe adjustment on the left side. Those tears of shame are coming from the diff bushing. redondoaveb likes this. Last edited by Spooler; 03-24-2019 at 07:48 PM.

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