Originally Posted by FlamingRectumSyndrome (Post 1946777)

Hmmm... let's see. Driving clutch since 1973, rebuilt my first engine (a 200 cubic inch six cylinder that wound up in my dad's '66 Mustang) when I was 13, 4 decades of experience rebuilding and riding / driving motorcycles and cars... Nah, I'm pretty sure I'm not lugging it. That, and the fact that the Dealership Mechanics concluded that I need a new transmission, well, that tells me that it isn't just me.

Originally Posted by Celadrielas (Post 1947184)

I find it some what amazing how quick everyone is to assume the OP is in some fashion or another ignorant.

Originally Posted by FlamingRectumSyndrome (Post 1945836)

So today I took my car in for its initial 7500 mile service. And I mentioned the rattling. An hour later I'm sitting in the very comfortable customer lounge at Livermore Toyota, sipping on a complimentary beverage, and watching my FR-S being repeatedly driven around the parking lot, returned to the service bay, and then taken for another spin around the parking lot. Some 2 1/2 hours later the service rep approaches me with the news that there is an issue with my transmission, they're opening a claim with Toyota, and can I come back Monday morning and drop my car off so they can install A NEW TRANSMISSION (!). She explains that they'll just uncrate a new unit, install it, and "Black box the original unit back to Japan".

Originally Posted by Celadrielas (Post 1947184)

I find it some what amazing how quick everyone is to assume the OP is in some fashion or another ignorant. This is common on this forum when involving threads like this. I will give you that we all have different definitions of "Low RPM" vs "High RPM" and can tell you that to me, "Low RPM" is anything below 1000. This is because we have 6 gears and at around 45mph (Typical city speed limit) the vechile sits between 1-2k and is not higher than 2000. This range, to me, is "Light load" or "cruising" range.

I get these are entry level sports cars which have perks and quarks but assuming somone else is completely ignorant isn't effective at all. This is especially true since his 2nd paragraph starts with him announcing he's done research.

Now, like another user said, I have 17,8-- on my vehicle. No rattle, thank god. I've had other weird issue occur such as a radiator exploding which resulted in the dealership claiming to pull driving habits from ECU. Weather or not they actually can, I don't care. I knew I was not pushing the car and the vehicle was still just a babe so I wasn't even spirited with her yet.

Also, as was stated, the clutch housing is bolted to the flywheel, which sits on the back end of the motor. The clutch disk rides on a splined stub shaft that sticks out from the transmission, this stub shaft is inserted into the clutch assembly, specifically into the disk, and is (when properly installed) done most commonly using a special tool that simulates this shaft to ensure proper fitment and alignment, and in no way should the clutch disk ever be able to "rattle" on the input shaft. If the disk itself is rattling, it was poorly installed in the first place.

Originally Posted by extrashaky (Post 1947299)

I don't think he's ignorant. I'm just not convinced this sound is a problem, much less a problem that justifies replacing the transmission. Has anybody been able to tie this noise to an actual failure?

Mine has done it since day one, and I'm up to 22K miles. This was a common noise in the British sports cars I grew up with, so the car sounded normal to me. My Triumph made this sound, even after I had replaced the clutch once and had the engine and transmission out of it twice and had realigned the clutch both times with the proper alignment tool. To be honest, the sound is so normal to me that I didn't even realize the BRZ was making it until I saw people on here complaining about it. Then I listened and realized it had been there there whole time. And then I kept driving.

I really do want to know what the techs say is "wrong" with the transmission they're removing and whether the sound returns with the new transmission. If it doesn't come back, I suspect that's more a function of luck than anything to do with parts or installation.

Originally Posted by Mikem53 (Post 1949205)

I was right at home when I got my FRS in hearing the clutch "rattle".
The lack of insulation and the transmission being right there close
And personal like lets you hear things you don't in other cars..
Those coming from fwd cars with manuals are isolated from the trans noise
As well as cars that are muted with more insulation and more isolation
from the engine components.
There were threads on the corvette forum about this same sound. Some say the springs on the clutch disc are the culprit as they vibrate.. Other say it's the throw out bearing itself.. Some say gears.. Who knows..
I've had similar sounds under the same conditions in my other cars and never
Experienced a problem over years of use..

Originally Posted by TONYpepperon1 (Post 1949189)

I tried to take mine to the dealer for it but it stopped chattering when i got there. Epic fail.. They did nothing for me

Originally Posted by Celadrielas (Post 1947184)

I find it some what amazing how quick everyone is to assume the OP is in some fashion or another ignorant. This is common on this forum when involving threads like this. I will give you that we all have different definitions of "Low RPM" vs "High RPM" and can tell you that to me, "Low RPM" is anything below 1000. This is because we have 6 gears and at around 45mph (Typical city speed limit) the vechile sits between 1-2k and is not higher than 2000. This range, to me, is "Light load" or "cruising" range.