944: gearbox rebuild?

[Thom]

I was just wondering if the noise often heard in most 944 at low revs - below, say, 2000 rpm in any gear - was normal or if some of the gearbox pinions had decided to retire.

I recently talked to a nice chap with a 928 GTS (pics of the meeting) who told he had the same noise thing on his transaxle, and that Porsche told him it was normal.

I'm not sure what to think - my humble S2 is definitely not a GTS! , so I wondered if any of you had an idea.

In the title I mention "rebuild" because if it ever needs it I'd be glad if I could keep my gear box because it's written on it that it was cast the same day as my birthday.
(edited: Sorry, yes, that's bloody ridiculous )

In advance, thanks for your comments

>>> Edited by Thom on Friday 1st November 20:55

[AJLintern]

What does it sound like? The only sound I get is when pulling out of a junction or roundabout - sort of like lots of gears whirring - still works though so I suppose its ok

[Thom]

Yep, gears whirring.
I'm glad your does the same as well - I just hope it's normal and it's not a bad sign...

edited: all the S2 I've been in yet make that bloody unpleasant noise .
But then they were all well above their 60k miles: do you think they made that noise when new??

>> Edited by Thom on Friday 1st November 21:50

[AJLintern]

How many miles/Km has your car done Thom? Mine has done about 87500 miles.

[Thom]

Mine will be reaching the 74k mark soon (see my profile)
What do you reckon?

[ninemeister]

Gear chatter at low revs is common, it is just the torque impulses of the engine shaking all the non-selected gears, that's all. Take a drive in a 946RS if you want to hear it clearer, or alternatively just drive the car without the rear carpet. Constant whine that gets louder the faster you go is a worry and indicates worn bearings or ring & pinion damage. Knocking from pull away points to worn driveshaft joints, can be proven by jacking up and lowering the car, the noise will disappear for a few miles afterwards as the grease is redistributed into the working area of the joint. Nuff said?

[Thom]

Cheers Colin, thanks once again for your knowledge!

[k27]

It's common in these cars, that torque tube amplifies the sound, try a good synthetic gear oil and it can be reduced.
My 951 is a little noisy too.
Cheers
Lance