Jump to content
SAU Community

R32 Gtr Gearbox/diff? Noise On Deceleration Above 80km/hr

Skizza_32GTR
 Share

Recommended Posts

Skizza_32GTR Rookie

Skizza_32GTR

Posted
Posted

Hey guys, im new to the forums here, i recently swapped my Evo 6(dont judge me lol) for a r32 GTR.. amoung the list of stuffed needed to be repiared is this wierd sound i can hear when above 80km/hr now this noise is only on deceleration or when coasting with very light throttle..no other time, It sounds like a dry bearing/ metal guide grinding...Now i have checked gearbox and diff fluid and they are all good, Checked to make sure no guides are rubbing like exhaust and tailshaft and i cant see anything...

This noise is not everytime eather most of the time but not every.. now if i put the clutch in while coasting or decelerating the noise goes away? clutch was done 2months ago with a heavy duty unkown brand as ABS mechanical did it which was before i got the car, receipt jsut says Nissan clutch (lol)

I have no idea what it could be, ive been doing alot of reading and some one will say rear output bearing, then others say input bearing and could be crown and pinion bearing in the diff...where should i start??

Skizza_32GTR Rookie

Skizza_32GTR

Posted
  • Author
Posted (edited)

Ok last night i fully replaced the oil on the gearbox, and i found a metal plate attached to the magnetic drain plug... Harts transmission in brendale has told me this part is NOT important as it is only designed to slow the oil down under hard breaking and fast accelerating, I was thinking hmm ok then why do they put it in there then??.. but anyway the noise is still there, I have been reading that the brake pads can cause a similar rattling noise to what i am hearing? any1 heard of this? I am yet to go on the high way yet to see if the rattle is still there under light braking while coasting, will post back once i have done so.

Edited by Skizza_32GTR
  • 1 month later...
BK Grand Master

BK

Posted
Posted

Dude I had something very similar in my R32 GTR with over 500rwkw. Thought it was gearbox. The noise would go away with the clutch in and on deceleration. You know what it was ? My front diffs' crown wheel and pinion gear were totally rooted. The gears were that sharp you could shave with them. Have a look at your front diff mate, put the car on the hoist and you'll pick it. I have one here if needed too.

Bayside Blue R34 GTV Collaborator

Bayside Blue R34 GTV

Posted
Posted

lol, i remember when we had a 600hp r33 gtr at the shop had similar problems and it turned out to be the crown and pinion, they were completely rooted as bk described. have a check, that might ber ur problem.

Zurlox Collaborator

Zurlox

Posted
Posted

not intending to commandeer the thread, but ive had a similar problem occur to me today on my way home from work, but its a squealing noise almost like a break pad rubbing on the rotor, and its on and off as if its a particular section being affected, its only during cruising speeds and deceleration, so not when accelerating and you can hear at low as 10km/h around the street. my car is a r32 gtst, and ive had diff clunking when its being engaged, ever since i put in some alloy rear cradle bushes. am i up for a new diff?

hope you get your car sorted out too Skizza

  • 3 weeks later...
Skizza_32GTR Rookie

Skizza_32GTR

Posted
  • Author
Posted

?hey guys thanks for the info, I have pulled the front diff out and had it checked, and turns out the isnt even 5000kms on it...they said they can still see the forming patterns on the teeth, and the bearings are brand new... I put the car back together and took it to Hart Transmissions in Brendale and they said it sounds like the clutch aswell as tailshaft chatter.. the clutch is a heavy duty exedy or extreame..i think? the clutch cover is a pink colour so i assume its those brands?.. and they tailshaft chatter well i wonder if the rear cradle bushes and rear diff bushes will help solve that? i found out the rear diff mounts are boned there is no rubber left on them and same with the rear cradle, and i also noticed the drivers side CV comming out of the diff is leaking diff fluid and it moves up and down :S which isnt good imo haha. So i think i might have to take the rear diff out and check it over too.. I'll post a update once i find out

Ohh BTW the noise sounds like a BURRRRRRRRR with a squeel to it but now its only from 110km/hr and up most of the time

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

    • TurboTapin
      Jacks that fit under GTR lips that can reach the subframe?

      By TurboTapin · Posted

      For these last 7 years of ownership, I've always had to use a small scissor jack under one of the front tow hooks to raise the front just enough so my low-profile jack fits under to reach my subframe jack point. I'm beginning to get annoyed of always having to do this. Are there any lower low-profile jacks that fit under the gtr lip on a dropped car?
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • Dose Pipe Sutututu
      new 1.5 LSD issues/concerns

      By Dose Pipe Sutututu · Posted

      This everytime 
    • DraftySquash
      Looking for someone with a R34 front bar

      By DraftySquash · Posted

      hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • MBS206
      new 1.5 LSD issues/concerns

      By MBS206 · Posted

      Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
×
×
  • Create New...