lefuton

more so when my engine is cold i get this whirring/rattle type noise with the clutch out, if i press the clutch in it goes away. at the socal meet i spoke to i think it was disney destroyer about it and we walked over to his car and he started it up and it did the same thing.

i'm not sure it's the throwout bearing, but that's the type of sound it makes...i'm more familiar with a 4speed saginaw mated to a 350 smallblock and that's the kind of noise that makes me think to replace the throwout bearing.

so anyone else get this?

eccles

My Miata 6-speed and my wife's 5-speed have the same rattle. My pet theory is the gearbox input shaft bearing.

The service guys at Mazda South went back-and-forth with Mazda's tech line about it, but Mazda is adamant that it's "normal." You'll notice it's worse when you have the AC on too, for some reason.

I guess the RX-8 'box has more in common with the Miata's than we thought.

wakeech

nearly exactly the same unit with beefier shafts and gears for the increase in torque.

Good Duck

This is exactly what I heard on mine too. I picked mine up yesterday and I didn't noticed this until the car was in my garage. The enclosed area just made it more apparent. At first I didn't know WTH was making that sound. Clutch disengage = small whirling noise. Clutch engage = no noise. My friend, who's more technically verse, said it was the throw out bearing noise. I've never heard this on my Civic. But my friend's Corvette does the same thing, except it's louder.

Aratinga

Both my Miata and my RX-8 do this. It's apparently normal. It sounds much worse than it is.

J.

8_wannabe

Ditto everything. Being not technically versed, is this anything to worry about or just normal operation? I first heard it in the garage but now that I'm attuned to it I notice it at stoplights, etc.

btw, I get a whirring but not a rattle.

lefuton

well that sure makes me feel a lot better about it then. i don't really use a/c though unless i have passengers

Gyro

I have it too. Thats normal, Ive had other cars with the same thing.

Any other wierd noises? I had addressed a few in another thread. 90 MPH rattle and some exhaust popping.

rx8daniel

have it too (t/o bearing)
I get a funny noise when starting out / backing up or starting forward as turning, type of thing when first getting going. Hard to describe, almost like brakes were stuck just for a sec like when the rotors get that coating of rust after washing or rain...

Good Duck

That's your ABS going through its startup test.

DreamWarrior

I get that too, but only once when I first start the car and take off for the first time. It never does it again after that. I couldn't decide whether it was my brakes or clutch because it only happens when I get completely off the clutch and begin moving for the first time after it was started.

Really?

Gyro

Good Duck is absolutely right.

The ABS runs a self test at start up and makes that "servo" noise. Its normal. You can almost feel it in your feet also

DreamWarrior

When the car starts or when you first begin to move it forward?

Gyro

I have noticed it when you put it in gear and move forward....or backward.

DreamWarrior

OK, then it probably is the same thing I'm noticing as well. Hummm...where did you read that it was the ABS test anyway? Just curious in case other oddities show up I can look for a reference before coming here complaining (even though that is the only really odd thing I've noticed yet...except that the electric fan is louder than the engine lol).