What is this sound? - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Calum · 02-05-2016, 09:57 AM

That sounds distinctly like a strut mount bearing. The stock ones are typically very robust, they have an excellent bearing. If you happen to have a bad one I wouldn't hesitate to replace it with another OEM one and chalk yours up to bad luck. If you're looking for an upgrade group n mounts also work really well and stiffen things up a bit. Beyond that there's a host of adjustable camber plates, but I prefer the streetability of rubber based mount so I don't have any experience with the all metal ones.

Shankenstein · 02-05-2016, 12:47 PM

As Calum said... it sounds like the strut mount's bearing. If it's not freely rotating, you'll get some noise as the strut is forcefully re-aligning. Kind of similar to coil spring bind.

Generally, strut mounts don't go bad this early in the car's life... but if the bearing is worn and loose, you get "clunk" noises over potholes. If there's corrosion or dirt/gunk, it can bind up.

For a good overview of the strut mounts (top hats), check out RSD's unboxing vid:
[ame="https://www.youtube.com/watch?v=Ee5aRsxOHOA"]STI Group N Front Upper Strut Mount - What's in the Box? - YouTube[/ame]

I am not affiliated with RSD, just using their video to facilitate discussion.

D_Thissen · 02-05-2016, 01:09 PM

Thanks guys. Is there an easy way to check them ? With our taking the strut assembly out ? For example, can I put bearing grease in and see if the kills the noise any?

Sent from my Nexus 6P using Tapatalk

Calum · 02-05-2016, 02:20 PM

Quote:

Originally Posted by D_Thissen

Thanks guys. Is there an easy way to check them ? With our taking the strut assembly out ? For example, can I put bearing grease in and see if the kills the noise any?

Sent from my Nexus 6P using Tapatalk

No, sorry, but if you want to check it you need to remove it. The bearing should move smoothly, with only a little resistance. Like pulling a magnet across your fridge. If there's any binding at all, you need to replace it.

Leonardo · 02-05-2016, 02:29 PM

[ame="https://www.youtube.com/watch?v=KAWoP1kncRE"]https://www.youtube.com/watch?v=KAWoP1kncRE[/ame]

Yes suspension changes cause noises. Mine does it too.

Racecomp Engineering · 02-05-2016, 02:54 PM

Quote:

Originally Posted by Calum

That sounds distinctly like a strut mount bearing. The stock ones are typically very robust, they have an excellent bearing. If you happen to have a bad one I wouldn't hesitate to replace it with another OEM one and chalk yours up to bad luck. If you're looking for an upgrade group n mounts also work really well and stiffen things up a bit. Beyond that there's a host of adjustable camber plates, but I prefer the streetability of rubber based mount so I don't have any experience with the all metal ones.

I agree with this fully. While it is rare, it is possible and the most likely variable in this case.

Group N mounts are more robust and the tolerance in the bearing housing and bearings used are better than OEM. Its not just the higher durometer of rubber.
(Source: Prodrive 2004 group-n PDF)

Myles

Calum · 02-05-2016, 06:00 PM

Quote:

Originally Posted by Racecomp Engineering

I agree with this fully. While it is rare, it is possible and the most likely variable in this case.

Group N mounts are more robust and the tolerance in the bearing housing and bearings used are better than OEM. Its not just the higher durometer of rubber.
(Source: Prodrive 2004 group-n PDF)

Myles

Today I learned, thanks Myles.

cdrazic93 · 02-05-2016, 07:14 PM

yayyy claps for myles for teaching me something! but actually, thank ya. Although with intense observation with two compared side to side I would have probably said the same thing, just never thought of it.

Futaba · 02-05-2016, 07:47 PM

Quote:

Originally Posted by D_Thissen

Thanks guys. Is there an easy way to check them ? With our taking the strut assembly out ? For example, can I put bearing grease in and see if the kills the noise any?

Sent from my Nexus 6P using Tapatalk

It's not exactly an accurate way of pinning down the exact part but I'd suggest lifting the bonnet and having someone turn the steering wheel with your ear down by the top of the stut, compare the noise from both sides then keep moving around till the sounds at its loudest, if its loudest with your ear right above the top of the strut then its highly likely to be the bearing.

Another thing to test is, while the wheels turning left and right, watch the spring, if should turn freely with the whole assembly, if it stutters or stops entirely and spuns in steps at all then your bearings the culprit, and is preventing the spring from rotating cleanly.

D_Thissen · 02-06-2016, 03:30 PM

Thanks for all the help guys, I appreciate it. Ill have to swing by the dealership and get a new top mount and swap them out. Hopefully that solves it.

D_Thissen · 02-06-2016, 03:36 PM

Quote:

Originally Posted by Racecomp Engineering

I agree with this fully. While it is rare, it is possible and the most likely variable in this case.

Group N mounts are more robust and the tolerance in the bearing housing and bearings used are better than OEM. Its not just the higher durometer of rubber.
(Source: Prodrive 2004 group-n PDF)

Myles

Are these to top mounts Myles?
https://tougetuning.com/product/grou...07-subaru-wrx/

Calum · 02-07-2016, 02:43 PM

Quote:

Originally Posted by D_Thissen

Are these to top mounts Myles?
https://tougetuning.com/product/grou...07-subaru-wrx/

That's the upgraded version that I was talking about. They're still very streetable. I wouldn't run one of these on one side and the original on the other side, but that price is for a pair so as long as you don't mind doing the work that will work.

Before you buy though, you might want to ensure the strut bearing is actually the problem. Troubleshooting over the internet isn't exactly an exact science.

GT86Moi · 02-09-2016, 11:19 PM

I kinda had some minor popping when I had my 14 FRS after upgraded to coil over and I thought it was normal but I never had another set of wheels on it just stock. But now I have a 16 brz and that popping nice came thru after I tried some other wheels 18x9.5 and they were kinda heavy compared to stock. I sold the aftermarket wheel set once I was in stock wheels when ever I would turn my steering wheel the popping sound became more noticeable. I did some research and I guess the rack and pinion came a little loose torqued it down to 55 foot-pound and the sound was gone. And I actually tracked down the sound after I dismounted the front wheels, turned the car on not fully on but for the electric rack pinion to move with ease, the popping noise was on just the driver side

02-05-2016, 12:47 PM	#16
Shankenstein Frosty Carrot Join Date: Jan 2013 Drives: The Atomic Carrot Location: Baltimore, MD Posts: 513 Thanks: 272 Thanked 428 Times in 199 Posts Mentioned: 19 Post(s) Tagged: 0 Thread(s)	As Calum said... it sounds like the strut mount's bearing. If it's not freely rotating, you'll get some noise as the strut is forcefully re-aligning. Kind of similar to coil spring bind. Generally, strut mounts don't go bad this early in the car's life... but if the bearing is worn and loose, you get "clunk" noises over potholes. If there's corrosion or dirt/gunk, it can bind up. For a good overview of the strut mounts (top hats), check out RSD's unboxing vid: [ame="https://www.youtube.com/watch?v=Ee5aRsxOHOA"]STI Group N Front Upper Strut Mount - What's in the Box? - YouTube[/ame] I am not affiliated with RSD, just using their video to facilitate discussion. __________________ If you think you're nerd enough, join in the discussions about Suspension and Aerodynamic modelling! Wall of Fame - JDL Auto Design, Raceseng, Vishnu Tuning, Penske Shocks, Nameless, Perrin, RaceComp Engineering, Essex/AP Racing, Verus, RacerX Wall of Shame - aFe Takeda, Wilwood, FA20Club

02-05-2016, 01:09 PM	#17
D_Thissen Senior Member Join Date: Jan 2014 Drives: '13 Argento FR-S (Sold) Location: Ontario Posts: 2,126 Thanks: 3,209 Thanked 1,439 Times in 855 Posts Mentioned: 19 Post(s) Tagged: 2 Thread(s)	Thanks guys. Is there an easy way to check them ? With our taking the strut assembly out ? For example, can I put bearing grease in and see if the kills the noise any? Sent from my Nexus 6P using Tapatalk __________________ My FR-S Build IG: dthissen

02-05-2016, 07:14 PM	#22
cdrazic93 Junior Join Date: Aug 2013 Drives: a car Location: Probably at school Posts: 4,341 Thanks: 3,184 Thanked 2,512 Times in 1,502 Posts Mentioned: 20 Post(s) Tagged: 0 Thread(s)	yayyy claps for myles for teaching me something! but actually, thank ya. Although with intense observation with two compared side to side I would have probably said the same thing, just never thought of it. __________________ "Ah! What music! They could have never imagined, those pioneers who invented the automobile, that it would posses us like this, our imaginations, our dreams. Men love women, but even more than that, men love CARS!"-Lord Hesketh

02-06-2016, 03:30 PM	#24
D_Thissen Senior Member Join Date: Jan 2014 Drives: '13 Argento FR-S (Sold) Location: Ontario Posts: 2,126 Thanks: 3,209 Thanked 1,439 Times in 855 Posts Mentioned: 19 Post(s) Tagged: 2 Thread(s)	Thanks for all the help guys, I appreciate it. Ill have to swing by the dealership and get a new top mount and swap them out. Hopefully that solves it. __________________ My FR-S Build IG: dthissen

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Does this sound deal sound decent ?	awhatzable	Scion FR-S / Toyota 86 GT86 General Forum	29	11-21-2015 10:02 AM
Drone (Worn Wheel Bearing SOund) Sound From Rear	qbzee007	AFRICA	8	11-14-2014 01:04 AM
South Sound Summer Jam 2013 \| 8.18.13 \| South Sound Speedway	RussellM	Northwest	13	09-05-2013 09:57 AM
Amp no sound	asher187	Electronics \| Audio \| NAV \| Infotainment	8	08-15-2013 06:03 PM
Sound - ASL	ScottKR	Electronics \| Audio \| NAV \| Infotainment	0	07-01-2013 10:34 AM

02-05-2016, 09:57 AM	#15
Calum That Guy Join Date: Dec 2011 Drives: 2013 asphalt FRS MT Location: Halifax, Nova Scotia Posts: 4,865 Thanks: 5,058 Thanked 2,867 Times in 1,499 Posts Mentioned: 82 Post(s) Tagged: 1 Thread(s)	That sounds distinctly like a strut mount bearing. The stock ones are typically very robust, they have an excellent bearing. If you happen to have a bad one I wouldn't hesitate to replace it with another OEM one and chalk yours up to bad luck. If you're looking for an upgrade group n mounts also work really well and stiffen things up a bit. Beyond that there's a host of adjustable camber plates, but I prefer the streetability of rubber based mount so I don't have any experience with the all metal ones.

02-05-2016, 02:29 PM	#19
Leonardo Country Boy 4 Life Join Date: Jul 2012 Drives: 19' & 06' Ridgelines, 13' FR-S Location: EUGENE Posts: 5,228 Thanks: 6,719 Thanked 5,291 Times in 2,720 Posts Mentioned: 47 Post(s) Tagged: 1 Thread(s)	[ame="https://www.youtube.com/watch?v=KAWoP1kncRE"]https://www.youtube.com/watch?v=KAWoP1kncRE[/ame] Yes suspension changes cause noises. Mine does it too.

02-09-2016, 11:19 PM	#27
GT86Moi Member Join Date: Apr 2015 Drives: WRB Subaru BRZ 2016 Limited edition Location: 831 Monterey County Posts: 12 Thanks: 0 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I kinda had some minor popping when I had my 14 FRS after upgraded to coil over and I thought it was normal but I never had another set of wheels on it just stock. But now I have a 16 brz and that popping nice came thru after I tried some other wheels 18x9.5 and they were kinda heavy compared to stock. I sold the aftermarket wheel set once I was in stock wheels when ever I would turn my steering wheel the popping sound became more noticeable. I did some research and I guess the rack and pinion came a little loose torqued it down to 55 foot-pound and the sound was gone. And I actually tracked down the sound after I dismounted the front wheels, turned the car on not fully on but for the electric rack pinion to move with ease, the popping noise was on just the driver side

User Name		Remember Me?
Password