Gearbox Noise / Oil Level?

**AndyH** · 21-04-2013, 11:04

Hi,

I changed from a 5 speed to a 6 speed (156 GTA I was told) over the winter and the car feel great post change.
I had an unidentified noise pre change and post change I've still got a noise... Sounds like a bearing, but not obvious if it is.
Nothing at slow speed, is there at moderate speed and then it seems to go at higher speeds. It seems to be more obvious going around left hand corners than right hand corners.

I've been checking the oil level today and found it was a little high... By chance I have the old 5 speed box plus a 6 speed from what I'm told was a 166 Alfa, so compared dipstick.

On comparing the dipstick between gearboxes there is a marked difference between the GTA box and the old 5 speed and 166 box.
Pic as attached. The GTA box appears to have a much lower Max/Min level than the other two boxes.

I'm booked in at Blyton next weekend and whilst I might risk it with a bit of a grumbly noise, I don't want to load a couple of hundred miles on it with a gearbox half full of oil!

Can anyone shed any light on the dipstick difference and any suggestions ref the noise would be much appreciated.

Regards
Andrew

**turbonutter** · 21-04-2013, 11:15

Have you checked the wheel bearings?

I have also seen a differnce in the dipstick on 5 speed boxes. Could it be due to the angle the engine sits at in the different cars.

Best way to sort the oil is to drain it out and then fill in the reccomended amount of oil and note where it is on the dip stick.

**AndyH** · 21-04-2013, 11:59

Hi,
Yes, jacked the car up and checked. Nothing obvious.

Sorry to ask, but what's the correct amount of oil.l think I was using 1.6l. Does this sound right?
Andrew

**ChrisCar6** · 21-04-2013, 12:20

Originally Posted by AndyH

Hi,
Yes, jacked the car up and checked. Nothing obvious.

Sorry to ask, but what's the correct amount of oil.l think I was using 1.6l. Does this sound right?
Andrew

Google is your friend:

2.0 litres from totally empty cold . 2.1 litres when performed while fluid is warm.

**AndyH** · 21-04-2013, 12:31

Originally Posted by ChrisCar6

Google is your friend:

Thanks Chris..
I've just been doing that... It's always good to get another opinion, so many thanks.
I'll drain /re-fill this afternoon, but I don't think this will fix the noise..

Lots on then internet about diffs "exploding" on the 6sp boxes.

Has anyone had any experience with a noisy diff pre failure / or the intermediate shaft bearing failing and symptoms?

Andrew