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gearbox whine.

Posted: Wed Feb 20, 2008 10:56 pm
by stevesports
I recently picked up this faint whine that seems to be coming from my gearbox. It sounds similar to the type of sound a gearbox makes when it uses straight cut gears.

it appears to increase in pitch as i increase in RPM, and it is less obvious the higher the gear i am in.

for example, it is loudest in first gear, very faint in 2nd and i can't hear it in 3rd and higher.

Is it normal for the gearbox to do this?

btw this is a 2001 NB8B.

*edit* the noise is quite faint, even in 1st gear. I had to wind all the windows up with the top up, and make sure i am in a quietish area.

In addition, if i'm travelling at say 60k's and i try to put my car into first (which is not possible), but if i try and apply pressure, the car won't go into gear but it will make the same faint whine if i apply pressure to put it into first. Maybe it is the synchro's?

Posted: Thu Feb 21, 2008 6:29 pm
by silvermiata
i have the same problem on my gearbox, its a 5 speed. research on the net says that its input shaftbearing or countershaft bearing.

mine was very faint too, after about 8 monts driving, its a little louder now...Please let m know if you find the source of the sound.