TwinTurbo.NET: Nissan 300ZX forum - Got it, thanks for the clarification
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Subject Got it, thanks for the clarification
     
Posted by black300zx on April 05, 2023 at 7:34 AM
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In Reply To It only whines when the clutch is released/out.... posted by Good2Zya2.0 on April 04, 2023 at 04:43 PM
     
Message Clutch out = input shaft spinning, so the whine is something related to it. You're not running a Pilot bearing, so the input shaft bearing and input gear itself are the only remaining rotating items that could make noise.

Does the whine change if you're accelerating in gear vs decelerating in gear (IE - coasting)? If so, that might point to a bad wear pattern on the gear itself (different sides of the teeth see pressure during access or decel. If the noise is unchanged during accel or decel, that should point to the bearing.

     
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