Noise when shutting car off while wheels in the...

[cutter]

...air and first gear engaged (manual). Long title but I can't find an answer as to exactly why. I had my 00 celica with its front wheels off the ground. I started it and put it in first to turn just the rotors (wheels were off). I was listening for weird brake noises from a possibly bent dust shield. As the wheels spun, I shut the engine off and then a loud, sharp winding down noise occurred. Loud enough where a buddy in another room in our factory sized garage questioned as to what happened. What made that noise? Was it egregious? Am I am idiot?

 

[kschachn]

A lot of manufacturers caution against turning the wheels with the engine (on a lift) unless you support the wheel hubs up from a full-down position. The angle is too extreme for the CV joints I believe.

 

[Merkava_4]

You're not supposed to turn the wheels while they're in the air on a car with constant velocity axles.

 

[CourierDriver]

hmmmmm, desert racing comes to mind,,lots of airborne stuff there.

 

[cutter]

Noted. Any damage done? Spun them for about 20 seconds.

 

[another Todd]

Desert racing CV joints are a different animal completely. The articulation on those is incredible. 36" of wheel travel is not uncommon nowadays.