How much noise is a 5-speed supposed to make? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 05-23-2011, 06:08 PM   #21
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i mean, listen at idle and push the clutch in and see if it goes away. it shouldnt make any noise while driving.
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Old 05-23-2011, 06:54 PM   #22
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I had the exact same noise as Brainy after putting in an ACT XT. I do recall greasing all the recommended points. My 5 speed blew up over 20k miles later, most likely due to 240whp.
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Old 05-23-2011, 07:47 PM   #23
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Quote:
Originally Posted by Braineack View Post
that noise was all because i failed to grease anything when i installed.

it's the sound of the TOB rattling on the fork.


if the whine goes away in 4th gear, it's internals.
This.

4th gear is straight through input to output 1:1 and dosn’t load bearings. everything sends torque through a secondary shaft and loads bearings.

Mine would squeal at light load after a flog session, usually coming off the track or at the end of an autocross run. After a little while a big bang would leave it with no drive in any gear but 4th. I have also broken second gear and 3rd gear only in other transmissions and when that happens it didn’t squeal prior to failure. I’ve broken 7 of them with 3 different failure modes. I havent thoroughly investigated but I think the squeal could possibly be from a chiped gear tooth getting stuck in a bearing and the race spinning.

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Old 05-23-2011, 09:02 PM   #24
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Mine makes noise in neutral AND while moving, but not with the clutch in and the car stationary. I will see if I can get a video of it tomorrow or something.
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Old 05-23-2011, 11:34 PM   #25
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Mine does this. Held longer than my engine at my power level...
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Old 05-24-2011, 12:09 AM   #26
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Is it more of a whine or does it sound like a "big *** cricket"?

https://www.miataturbo.net/general-miata-chat-9/clutch-squeaks-after-long-drive-45805/
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Old 05-24-2011, 12:47 AM   #27
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Less noise than a freight train and more noise than a sleeping kitten?

I thought that 5 speeds were so cheap that you were supposed to swap it out each time you miss a shift?
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