Mechanical sound - rear axle or rear brake disc? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

hachi roku [86] · 06-18-2016, 04:13 PM

After working on the rear passenger-side wheel to replace the wheel studs started hearing vibration / noises like this: [ame="http://youtu.be/DTufUXuZwnk"]http://youtu.be/DTufUXuZwnk[/ame]

I have a bad feeling that I might have applied to much pressure to the axle while trying to remove the hub with the studs, damaging the axle. However, it might also be smth wrong with installing the old brake disc back on, especially since the noise seems to fade when I apply the brakes (can be also heard in the video).

Is there some science about how to balance the brake disc, or have I indeed wrecked the rear axle?

Ultramaroon · 06-18-2016, 11:15 PM

I think you might be onto something regarding the rotor but it's a tough call. Good recording.

Maybe try putting it back up on stands and rotate the wheel by hand while it's in neutral?

humfrz · 06-19-2016, 02:56 AM

Quote:

Originally Posted by Ultramaroon

I think you might be onto something regarding the rotor but it's a tough call. Good recording.

Maybe try putting it back up on stands and rotate the wheel by hand while it's in neutral?

Then you might consider taking it back apart to look for something lose. I'd pay special attention to the emergency brake.

Is the axle nut tight .. ??

humfrz

hachi roku [86] · 06-21-2016, 12:41 PM

The lug nut is seems tight (very), tightened with an air impact, although I don't have the right torque wrench.

Will try to take the disc off and back on, and check the E-brake...

hachi roku [86] · 08-05-2016, 07:26 AM

For those wondering, it turned out to be completely unrelated to the whole rear axle / axle nut issue. I just haven't tightened the lug nuts well enough on the opposite wheel :-P

Sent from my iPhone using Tapatalk

humfrz · 08-05-2016, 05:02 PM

Quote:

Originally Posted by hachi roku [86]

For those wondering, it turned out to be completely unrelated to the whole rear axle / axle nut issue. I just haven't tightened the lug nuts well enough on the opposite wheel :-P

Sent from my iPhone using Tapatalk

....... now, that's once!

But thanks, for getting back to us ......

humfrz

zc06_kisstherain · 08-05-2016, 05:23 PM

Quote:

Originally Posted by hachi roku [86]

For those wondering, it turned out to be completely unrelated to the whole rear axle / axle nut issue. I just haven't tightened the lug nuts well enough on the opposite wheel :-P

Sent from my iPhone using Tapatalk

thank that it didnt get loose while you drove.

iamjacob · 08-05-2016, 06:42 PM

Happened to me once on my very first car a 1980 Dodge Ram 50. Lost 2 out of 6 nuts and nearly lost the wheel.

Double check all your lug nuts folks, every nut, every time.

Gald you found it in time.

06-18-2016, 04:13 PM	#1
hachi roku [86] Member Join Date: Jan 2014 Drives: Toyota GT86, Mazda MX-5 NB Location: Denmark Posts: 69 Thanks: 19 Thanked 13 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Mechanical sound - rear axle or rear brake disc? After working on the rear passenger-side wheel to replace the wheel studs started hearing vibration / noises like this: [ame="http://youtu.be/DTufUXuZwnk"]http://youtu.be/DTufUXuZwnk[/ame] I have a bad feeling that I might have applied to much pressure to the axle while trying to remove the hub with the studs, damaging the axle. However, it might also be smth wrong with installing the old brake disc back on, especially since the noise seems to fade when I apply the brakes (can be also heard in the video). Is there some science about how to balance the brake disc, or have I indeed wrecked the rear axle?

06-18-2016, 11:15 PM	#2
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,396 Thanks: 53,053 Thanked 37,225 Times in 19,308 Posts Mentioned: 1117 Post(s) Tagged: 9 Thread(s)	I think you might be onto something regarding the rotor but it's a tough call. Good recording. Maybe try putting it back up on stands and rotate the wheel by hand while it's in neutral? __________________ service manuals

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06-21-2016, 12:41 PM	#4
hachi roku [86] Member Join Date: Jan 2014 Drives: Toyota GT86, Mazda MX-5 NB Location: Denmark Posts: 69 Thanks: 19 Thanked 13 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The lug nut is seems tight (very), tightened with an air impact, although I don't have the right torque wrench. Will try to take the disc off and back on, and check the E-brake...

08-05-2016, 07:26 AM	#5
hachi roku [86] Member Join Date: Jan 2014 Drives: Toyota GT86, Mazda MX-5 NB Location: Denmark Posts: 69 Thanks: 19 Thanked 13 Times in 11 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	For those wondering, it turned out to be completely unrelated to the whole rear axle / axle nut issue. I just haven't tightened the lug nuts well enough on the opposite wheel :-P Sent from my iPhone using Tapatalk

08-05-2016, 06:42 PM	#8
iamjacob insert witty quip here Join Date: Mar 2016 Drives: 2016 Limited BRZ Location: Stockton CA Posts: 255 Thanks: 52 Thanked 193 Times in 103 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Happened to me once on my very first car a 1980 Dodge Ram 50. Lost 2 out of 6 nuts and nearly lost the wheel. Double check all your lug nuts folks, every nut, every time. Gald you found it in time.

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