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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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06-20-2021, 02:09 AM | #29 |
義理チョコ
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Haha.... I'm working but had some downtime. I'll come back and spend some quality time here. Will update ASAP.
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06-20-2021, 10:17 AM | #30 | ||
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I adjusted the clutch back to stock. Erm.... In some ways it feels better but I think it may be because I was driving more carefully all around trying to adjust myself to the new clutch pedal travel (I am not a fan). It is certainly hard-er to replicate the problem on flat ground. I tried and it grabbed pretty quick. On hills it almost seems worse but that may be because I am still getting used to lifting my leg 20 miles in the air to let off the clutch. I really cant tell. At first I got a false sense of hope because right after the adjustment I certainly believed it felt a lot better, but then on the hill, it was the same deal. Results reported as of 10:16AM |
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06-20-2021, 03:32 PM | #31 | |
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You're doing a hill start so right away we know that you have to apply more torque than needed on a flat. That's the key. It's not the clutch, transmission or anything potentially tragic. Have to think about what flexes more than normal under torque. If it doesn't handle wonky, we can probably rule out suspension bushings, but not entirely. Diff mount? Driveshaft carrier mount? If you have a nice flat place to tinker, you can park it in first and from the outside, rock the car back and forth to see if you can replicate the sound. Pop the hood and do it from the strut braces so you can see the engine rock. You will hear noise coming from normal lash so be careful not to let that trick you. It may not give us anything.
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The Following User Says Thank You to Ultramaroon For This Useful Post: | T_Squadrito (06-20-2021) |
06-20-2021, 04:31 PM | #32 | |
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I will rock the car later if I can. Gonna be busy tomorrow. If I notice anything I will attempt to get audio of it but one way or the other I will report back. |
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The Following User Says Thank You to T_Squadrito For This Useful Post: | Ultramaroon (06-20-2021) |
06-20-2021, 07:45 PM | #33 | |
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Ok got some audio. It IS creeking and is metallic like the sound in the initial recording. Rear drivers side wheel well. I don’t hear it on the right or front. Idk if this is THE sound but it’s A sound that could be related IMO. https://drive.google.com/file/d/15K-...w?usp=drivesdk (around the 3 second mark) IF, and I recognize this is an if, it is the culprit, it MAY explain why it is more frequent on hills. Being that it is on an upwards incline, the car has more potential energy pulling it backwards so the car would theoretically push down more on the rear of the car, putting more strain on whatever is causing that, sound. Additionally that explains why its harder on a down hill to recreate and harder on flat because in both instances the car isn't trying to roll backwards as I try to force it forwards. I am not entirely sure why me and several others heard it from the front but if what is making that sound is connected to something that travels up the length of the car then it could be causing the sound to appear somewhere else. Last edited by T_Squadrito; 06-20-2021 at 10:01 PM. |
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06-22-2021, 10:45 AM | #34 | |
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The Following User Says Thank You to T_Squadrito For This Useful Post: | Ultramaroon (06-22-2021) |
06-22-2021, 12:07 PM | #35 |
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Overpipe heat shield? Creaks and groans can be a real PITA.
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The Following 2 Users Say Thank You to Ultramaroon For This Useful Post: | Dzmitry (06-22-2021), T_Squadrito (06-22-2021) |
06-22-2021, 12:31 PM | #36 | |
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The Following User Says Thank You to Dzmitry For This Useful Post: | T_Squadrito (06-22-2021) |
06-22-2021, 12:39 PM | #37 | |
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06-22-2021, 12:43 PM | #38 |
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Yeah. I am looking forward to what they say on thursday. A bit like my message I just posted to Dzmitry, when I got under there it all seemed tightened down, possibly harder than spec but I didnt check, but either way, it's a little hard to be certain with the car just on ramps. Not the most accessible position to check things. Hopefully, with the luxury of a lift, they will be able to get a better idea than I could on my back.
Youd be proud. Lol. Dude goes, we dont really work on subarus but dont go after market on the clutch and if you do get a street clutch. Hes like, the stock clutch in this car is perfectly good 9 times out of 10. An after market one is just one headache after the next in this car. Lol. I remember you saying before not to do an after-market clutch and just focus on the slave cylinder. |
The Following User Says Thank You to T_Squadrito For This Useful Post: | Ultramaroon (06-22-2021) |
06-22-2021, 12:43 PM | #39 | |
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EDIT: They didn't determine if it was a front SIDE or not, did they? 2nd EDIT: On second thought, listening to it again, I guess it's not TOO loud. But still has a solid grind sound to it. |
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The Following User Says Thank You to Dzmitry For This Useful Post: | Ultramaroon (06-22-2021) |
06-22-2021, 12:51 PM | #40 | |
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06-22-2021, 01:04 PM | #41 | |
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06-22-2021, 01:09 PM | #42 |
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Yeah I am excited to know so if nothing else we can have the sound and location on record if anyone else has a similar problem.
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The Following User Says Thank You to T_Squadrito For This Useful Post: | Ultramaroon (06-22-2021) |
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