EMBPilot

Did a search didn't find anything...
Is this normal behavior?

We had the car up on the lift, I had both real wheels off to change valve cover gaskets and did an oil change while it was up. Started the car at the end of the oil change and found both the real wheels turning while it was idling in neutral. I don't recall my car ever doing this in the past.

IXLR8

Maybe you had your handbrake on in the past.

Once the gear oil reaches operating temperatures, they will likely stop turning.

It does that on motorcycles as well when on the center stand. The thicker cool gear oil causes drag between the shafts and free wheeling gears.

JB 911

Hmmm that is interesting.

As a reference, I just had mine running on jackstands last week and no spinning in neutral. (I was verfing my clutch slave bleed went correctly)

fwiw I am running Mobil1 LS 75W90

Maybe ambient temp could play a role in it too. It was about 60F here.

RichPugh

If you can stop it with your hands, its just spinning from cold viscous gear oil. Remember, your clutch is engaged so the engine is spinning the trans input shaft even in neutral. Gear oil is thicker and stickier when cold (gear oil doesnt typically reach operating temp until 50-90 degreed F over ambient temp or somewhere around 120F - 180F). Your 60F is COLD The sticky cold oil moves around inside the gearbox literally causing the output shaft to spin the diff... thus wheels turning. Almost all MT vehicles do this.

Quadcammer

i kinda figured that this was what was occurring, but kinda trippy in person

EMBPilot

Rich thank you that makes sense... We were kind of concluding that but I wasn't sure.
Alex you are prob exactly right in the past we prob had the brake set!

P-daddy

Yep, seen that in mine too while up on stands.

AOW162435

Normal.


Andreas

ilko

First time I experienced it also freaked me out.