With one corner in the air and the wheel off, should it spin with the engine running and the transmission in neutral?

Kinja'd!!! "DC3 LS, Fuck Hyundai, now and forever" (eg6)
02/14/2020 at 19:50 • Filed to: None

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I was replacing my drive belts today, and when I was done, decided to turn on the car to make sure they had good tension before putting the splash shield and car down. When I did, like in the title, the hub that was in the air started spinning slowly, although the other side wasn’t at all.

It’s a manual transmission, so is this normal, just not visible because normally there’d be the weight of the wheel and car pressing down on it to stop it?


DISCUSSION (4)


Kinja'd!!! ItalianJobR53 - now with added 'MERICA and unreliability > DC3 LS, Fuck Hyundai, now and forever
02/14/2020 at 20:02

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My brain says it  should not but I’ve seen that happen with my friend’s E46.


Kinja'd!!! jimz > DC3 LS, Fuck Hyundai, now and forever
02/14/2020 at 20:09

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you’ve got it. While it’s in neutral, the input shaft is still spinning and the gear oil is viscous enough to transfer some motion to the output shaft.

You could probably stop the spin with your pinky finger. 


Kinja'd!!! MiniGTI - now with XJ6 > DC3 LS, Fuck Hyundai, now and forever
02/14/2020 at 23:28

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I’ve noticed this running  the TR6 up in the air a couple times too. 


Kinja'd!!! ateamfan42 > jimz
02/17/2020 at 08:16

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While it’s in neutral, the input shaft is still spinning and the gear oil is viscous enough to transfer some motion to the output shaft.

My folks used to have an old Subaru with pretty heavy lube in the transmission. When you started it in the cold and engaged the clutch in neutral, the car would creep forward on the garage floor unless you applied the brake (or set the parking brake).