Jump to content
SAU Community

Whirring Sound From Gearbox

lows_13
 Share

Recommended Posts

lows_13 Mentor

lows_13

Posted
Posted

I've got a whirring sound coming from the gearbox, when i put my foot on the clutch the sound stops.

When i take it off the sound starts up again. Am i right in saying it a worn thrust bearing?

How hard is it to remove the manual box and replace the thrust bearing?

Link to comment
https://www.sau.com.au/forums/topic/131302-whirring-sound-from-gearbox/
Share on other sites
msnismo Grand Master

msnismo

Posted
Posted

My car makes the same noise - its the front gear box bearing. If you were to put your foot on the clutch lightly and it made the noise then it would be the release bearing.

How do I know? My dad is an automotive teacher at TAFE - comes in handy let me tell you! :P

No need to replace until it becomes excessively loud - mine has been making it for around 15,000km now and is getting no worse - can only hear it in the garage or really late at night going through a tunnel or something. Dad advises that once you drop the gearbox it is easily accessed and the bearing is cheap!

Hope this helps!

  • 3 weeks later...
Cubes Grand Master

Cubes

Posted
Posted

lows_13,

Its the input shaft bearing, common in the rb20 box's, I have heard of it occuring in the rb25 box's also.

Don't worry about it. Mine was as noisy as hell for 140,000km's until the box let go. The failure wasn't caused by the input shaft; the failure was related to fatigue caused by the 3ltr. 3rd gear stripped.

It was pretty embarassing sitting in a fast food drive through, the noise was LOUD! bouncing off the brick.

Security, I think the thrust bearing ppls are refering to here is the clutch thrust bearing that pushes on the clutch to disengage it.

subzeroR33 Mentor

subzeroR33

Posted
Posted
My car makes the same noise - its the front gear box bearing. If you were to put your foot on the clutch lightly and it made the noise then it would be the release bearing.

How do I know? My dad is an automotive teacher at TAFE - comes in handy let me tell you! :P

No need to replace until it becomes excessively loud - mine has been making it for around 15,000km now and is getting no worse - can only hear it in the garage or really late at night going through a tunnel or something. Dad advises that once you drop the gearbox it is easily accessed and the bearing is cheap!

Hope this helps!

I have the same problem, i was told it is the throw out bearing sounds like there are alot of diffent bearings making these noises lol who knows, and like msnismo said there is no need to spend money on getting it fixed as it doesnt harm the performance. But on the other hand the noise still shits ya.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • PranK
      Lock up the old for sale / wtb threads.

      By PranK · Posted

      We have a huge update coming in the next few months, version 5 of Invision will be released. I'm holding off any changes until after this change as I'm not sure what features will be removed or introduced.
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Yeah, plenty of air flow, there is a dedicated path that feeds the air in to the OEM intake tube behind the bumper As for a "tangible effect", maybe, but getting the pod/intake air out of the hot engine bay is worth it psychologically to me, even if it gives no performance difference, so the tangible effect in my Lizard brain saysss yessss  In the end, to me a tangible effect isn't always about performance, sometimes it a sound or a look, or even a...... feeling  Ooga-Chaka Ooga-Ooga Ooga-Chaka Ooga-Ooga Ooga-Chaka Ooga-Ooga Ooga-Chaka Ooga-Ooga
    • Duncan
      RB20DE NEO smallbox clutch.

      By Duncan · Posted

      yeah first and reverse is where you will find clutch release issues (whether hydraulic or mechanical) because the difference in revs required is the highest there; particularly changing down from 2nd to 1st when still moving. To be clearer though, it is possible that the clutch release bearing is the wrong height. This is less likely than a hydraulic issue but it is not unheard of when you are mixing and matching
    • Duncan
      NC MX5

      By Duncan · Posted

      Quite right, if you make it to that pension you deserve every cent
    • jtha7
      Replacing turbo water line - any recommendations or advice?

      By jtha7 · Posted

      Hi all, Restoring r33 series 1 rb25det. All the heater hoses were on their way out, have replaced them and put it all back together. After testing I noticed a small leak from behind the head on the actual metal water line to the turbo when cars warm. I tried running a longer hose over it but it kept leaking...   I am about to take the (stock) manifold off again😔 to change the water line does any one have any lines they recommend? I was looking at Aeroflow Turbo Oil & Water Line Set but not sure what everyone else recommends. Car is completely stock but want to upgrade turbo eventually. it looks like ill have to disconnect a lot just to replace these lines so if there's anything else recommended to do please let me know. Thank you in advance!
×
×
  • Create New...