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noisy gearbox and wierd whirring noise HELP!

nOOSE
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nOOSE Enthusiast

nOOSE

Posted
Posted

hey guys,

I've noticed ever since i've had the car that the car seems to be really noisy. The engine has a pretty loud ticking sound and not only when it's cold. But one thing that i'm really worried about is that my gearbox seems awefully noisy. i can hear the some sort of whining when i'm in gear and also this whirring noise that is directly proportional to my speed. i could be in neutral and rolling down a hill and the whirring noise will be there. it sounds like my drive shaft is scraping across something. Can anyone help please! i hope i don't have something wrong with my gearbox or anything eeep!

nOOSE

nOOSE Enthusiast

nOOSE

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Posted

"does the noise go away when you push in the clutch?

does the noise happen in all gears?

is the noise relational to speed or rpm?

does it happen in netutral?

what kind of car?"

no i can be rolling down a hill with the clutch in and the noise is still there. the noise happens in all gears. it happens in neutral. It's a r32 gtr.

nOOSE.

ps. the ticking isn't worrying me too much i assume it's the injectors but the noisy gearbox and metal on metal scraping noise does.!

Amaru Veteran

Amaru

Posted
Posted

What modifications have been done to the car? If its directly relational to speed not rpm, could be straight cut gears, could be worn gears and/or bearings.

Ticking noise is probably a combination of solid lifters and injectors... RB26's have noisy top ends :)

nOOSE Enthusiast

nOOSE

Posted
  • Author
Posted

"so the pitch of the noise changes with speed and not rpm?

Where does it sound like it comes from? can you hear it inside and outside the car? can you feel any vibration from it?"

the scraping noise is directly proportional to the speed that the car is moving at not rpm. the noise sounds is coming from the center of teh car rite at the gearbox. someones the noise is really loud and sometimes the noise is soft so i have to listen to it but it's always there. the noise is most noticeable when in higher gears prolly coz in first and second the drone of the engine hides it. i have a short shift kit aswell and the gears are not happy going into first or second. have to give it a bit of force.

nOOSE

ps. I'm not sure if the gearbox has been modified but i'm not aware of any mods in the transmission. i can feel vibration on the gear stick when i let go of the gas mostly in third. but there is some vibration on the gearstick. i don't know if u can hear the noise from outside the car coz i have no one to listen to it :).

terry.m Enthusiast

terry.m

Posted
Posted

Don't worry about the 1st and 2nd shift, they all suck in that department.

I would almost second Amaru, straight cust gears with synchro by the sounds of things. If so, lucky bugger, you're set up for big HP. If it were a dog box, the shift would be noisy and a bitch to change gears in normal conditions.

Take the box off, have a gander...

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