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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 09-19-2020, 01:07 PM   #15
Irace86.2.0
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Check my build. Mine went out about the same time. I had to replace the snout.

It was just odd coincidence for you man. It is bound to happen to someone.
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Old 09-21-2020, 12:45 PM   #16
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Yeah mine was making noise around 72K. And once I got in there it was completely falling apart. Snout was worn as well. Wasn't too hard to replace both and didn't take too long. It did take a bit of time to get the snout replacement, and that was pre-covid.
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Old 09-21-2020, 01:23 PM   #17
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If you haven't already done the valve spring recall, just have the dealer replace the clutch and TOB while they're at it to save on labor.
That would be my thought! Add spark plugs to that list also.
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Old 09-21-2020, 02:30 PM   #18
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If you haven't already done the valve spring recall, just have the dealer replace the clutch and TOB while they're at it to save on labor.
Unfortunately, already took care of that a while back.
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Old 09-21-2020, 02:38 PM   #19
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Transmission guy confirmed that TOB has failed. I've decided to just replace the clutch. He also said the flywheel "definitely" needs to be replaced (pic he sent me of the old flywheel below). He said he won't resurface because it's unclear how much they'd have to cut it and even then (if successful) would change the clutch feel.
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Old 09-21-2020, 03:16 PM   #20
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Mine started making sound around 45k. Dead at 50k. Consider yourself lucky
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Old 09-23-2020, 09:38 PM   #21
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Originally Posted by tobin View Post
If you haven't already done the valve spring recall, just have the dealer replace the clutch and TOB while they're at it to save on labor.

I must have missed that. What happened with valve springs?
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Old 09-24-2020, 02:38 AM   #22
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I must have missed that. What happened with valve springs?
Do NOT do the valve spring recall. I dont know if he was being sarcastic by saying do the recall, but Google frs valve spring recall and every single search result is about the class action lawsuit regarding our cars failing after the recall is performed. I do not know of a single person who's "faulty springs" failed, but I know countless cases of failure after the recall. I seriously do not know a single case of the factory springs failing.

Regarding the topic of tob, I'd recommend replacing the clutch and flywheel with oem parts while it's all open. Years later you wont miss the money you spent, and will be happy that you don't need to deal with clutch shit likely till you no longer have the car.
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Old 09-24-2020, 12:02 PM   #23
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My TOB started to squeal under 40k miles (but plenty of track and high RPM usage). Perfect time to upgrade to a lightweight flywheel and stage 1 clutch. Sometimes just have to make lemonade! Love the lightweight flywheel, one of my favorite upgrades. Also threw in a strengthened fork and pivot at the same time, in addition to the revised TOB, so I'm hopeful this TOB will live a long and blessed life.
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Old 09-24-2020, 06:57 PM   #24
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@HaXx I checked my VIN and it doesn't look like my car was affected which is a huge relief. I've had my FRS for 7 years and I still love driving it everyday!
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Old 09-24-2020, 07:35 PM   #25
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My TOB started to squeal under 40k miles (but plenty of track and high RPM usage). Perfect time to upgrade to a lightweight flywheel and stage 1 clutch. Sometimes just have to make lemonade! Love the lightweight flywheel, one of my favorite upgrades. Also threw in a strengthened fork and pivot at the same time, in addition to the revised TOB, so I'm hopeful this TOB will live a long and blessed life.
tell me about driving with a lightweight flywheel, ive considered it for when i do my tob here soon
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Old 09-24-2020, 08:08 PM   #26
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I reckon that would depend on what the old clutch looks like. Yes, you can just replace the TOB. If the clutch hasn't been abused, it should be good for another 40,000 miles.
I also had my TOB replaced at nearly 60k miles, and kept original clutch. Currently at 130k, sosome may be able to get those 40k miles easy.

PS Results may vary.
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Old 09-25-2020, 01:33 AM   #27
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tell me about driving with a lightweight flywheel, ive considered it for when i do my tob here soon
Love it. Engine responds much quicker on rev-matches. Before I really had to press the throttle to rev-match but now it's absolutely intuitive and easy to overshoot even. Power-wise, the lightened rotational mass is supposedly equivalent to 6 whp in 2nd gear (more in 1st, less in 3rd-6th). I can't really feel that, but I can say with the LWFW and e85, my car is even with a stock AP2 s2000 in 1st-3rd (to ~80mph) for what that's worth.

No real downsides IMO. I get a small resonance in 5th gear around 3200-2600 RPM on decel. Slight chatter at idle with the a/c on, but stock was about the same.

I went with the Exedy 12 lbs flywheel. I purposefully didn't go too light, but I think I would have been fine even with a 10-11 lbs one. If you're going to go this route, don't get an aggressive clutch. I could see that becoming quickly annoying with a LWFW due to the lack of momentum. I've got the Exedy stage 1 clutch and it feels perfect with this flywheel. Best way to describe it is OEM+
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Old 09-25-2020, 11:06 PM   #28
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60k is basically as long as the stock TOB's last. Mine starting rattling at like 45k and thats with a ton of highway driving.
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