How Noisy Are Gtr Boxes?

[shane344]

Just picked up a manual RS4 Stagea, unfortunately it came from interstate so I have relied on inspectors to test drive.

The one I ended up with the inspector said it had a noisey box but every GTR/skyline he had driven was talkative so I shouldnt worry too much.

Can those with GTRs comment on how noisey their boxes are.

Its loudest in first and second at walking pace, it sounds like fluid moving around and general bearing whine.

It quietens down with load and once cruising its pretty good.

My manual XF was noisier in fifth at cruise (worn gears) and this is about as loud but only whilst mooching.

I am thinking I will throw an oil change at it and see what happens.

It probably needs a general maintenance birthday anyway, if only I could get a jack under it.

[R31Nismoid]

Noisy as in what way?

I can't hear anything out of mine...

But then the exhaust isn't exactly quiet but even @ 4000rpm in first just holding RPM there is a bit of noise i suppose, you are asking quite a subjective question

[Force Fed]

My 33 gtr box is rather quiet. Though, cant hear shit over straight pipes off the back of gtrs'

[GTRSOL]

hey mate mine is making a simlar sound...when its cold it seems worse, but sounds like a light grinding, (r32 gtr)

have taken a few mechanics they dont think its serious as its making the wrong noises, but just to keep an eye on it. mine does it even out of gear when just rolling. so im thinking just a bearing.

but gtr boxes arnt the quietest full stop!

[shane344]

It sounds like bearings to me, not grindy or crunchy.

GTRSOL, sounds like mine has a similar issue.

Its speed related not gear related, I can be rolling in neutral or in first and sounds the same, so I assume output shaft bearings.

Its dead quiet whilst stopped in neutral with no feet..

Load it up and its quiet.

I know its subjective but gotta ask before I go ringing up a dealer to tell him its a dud box.

Gearbox oil will be tried first.

Edited August 22, 2011 by shane344

[central coast person]

Its nothing to worry about and they would probably last 100000km with the rumble and also if you have a heavy duty clutch it will EXTREMELY make the bearings loud in the box, its called gearbox rumble. I got this when i changed to a heavy clutch and Ive only got a GTS-4 ....... so i have a GTR gearbox that's got no power going through but it still did this and looking into the problem i could see its not power related just that no one changed the oil in my car till i did its 160,000km service. My filler plug had about 1cm of metal dust on it, no shavings just really fine metal like powder. Anyway i found something Nismo sent to a supplier about this.

-Because of the design and manufacturing processes used to create the improved clutch response and increased output provided by the sports clutch disc and lightweight flywheel, it is possible that the transmission or bearings may make a rumbling noise, particularly in comparison to genuine Nissan parts. Transmission or gear noise is most likely to occur at idling or when accelerating or decelerating in the range of approximately 2000rpm; however, this has no effect on quality or performance.