R34 Whining At 80Km/h

[Page34]

hey guys, wondering if anyone has come across this noise before

my na r34 make a whining noise at almost exactly 80km/h in 5th gear at about 1/4 throttle, it sould like i could be comming from the gearbox, cheaked oil levels and all seams fine

if anyone has heard this would love to find out what it is and if there is a fix

cheers

[niZmO_Man]

Diff?

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probably, how could i cheak that? would it be a lack of diff oil or something messed up internally

[kosmo90]

Wheel bearings?

[niZmO_Man]

probably, how could i cheak that? would it be a lack of diff oil or something messed up internally

If it's only doing the while in one gear (e..g 5th) then you can point at the gearbox. If it's whining in whatever gear at that speed (e.g. drop it to 4th and 3rd) then it's most likely diff. Does it whine under load or all the time (e.g. lifting off going downhill)?

[gtsttrk]

Wheel bearings?

Yeah that was my first though when I saw this thread. I'd say check wheel bearings, though it does sound a bit strange that it's happening in a specific gear - in terms of wheel bearings.

[Sinista32]

I mistakenly read subject as "R34 Winning at 80kmh"

nothing to contribute

[gtsttrk]

lol, that's gold ^

[fyjosh]

Measure the diff gear backlash and replace shims where necessary. Replace the oil.

Although you could just be low on oil, it's best to do the job properly and check the clearances as the gears and shims wear over time.

The pinion bearings may need replacing also, this is a bit trickier.

[Page34]

ill see if it does it in other gears tomorrow on my way to work

it doesn't sound to much like wheel bearings because when i load them by weaving left to right it isn't any worse

what oil does it take do you know?

epx 80w-90 or multitrax?

[Page34]

Tested it this morning in 4th and it was still making the noise so I will top up the oil and test it out then if not I'll go further

What oil do they take does anyone know?

[BrewsterGTS4]

I had this problem with my subaru. Eg. Is the same speed. Slower barely hear it. Faster gone. I changed the gearbox and it fixed the problem. Not sure if it was the gears meshing or the pinion gear. Id say that wheel bearings make a whirring noise not wining. Snd pinion gear id guess is the front diff. So I would say possible diff relation or gearbox. Hope this info helped.

[Page34]

Found out today what it was

Got it up on the hoist at work and ran it up to speed

Sound was comming from where the gearbox meats the tail shaft

I'm guessing there's a bush or baring in there that has gone

No noise comming from the box or diff