Guys on my Gsr(cb type) i recently did a E3 conversion ( 4g63t engine and lsd RS box with matching lsd rear diff).
So my issue is this , when im driving fast or slow doesnt matter and i go off gas i hear this wining sound coming from the front maybe under the car , i cant pin point it as yet, when i go back on gas it dissappears. Is this gearbox chatter? if so how do i get rid of it.
Also if its the centre bearing what would be the symptoms...
well the strange thing is only when i go off thottle during driving i dont hear it ... happens above 6km/h... on the upper gears 4-5 mainly or just crusing on 4th and i go off gas i hear it ...
btw Mishi what oil would you receommend for the lsd diffs im running 75w90 redline rear diff, transfer and MT90 on the gbox
well im using Redline MT90 on the box i know for sure .. but i think it was recommended for me to use the Redline75w90 on the transfer and diff!!!... this is Gl4 and should be gl5 "sighs'
90 might be a lil too heavy for the transfer but then there are those who use other oils without issue.
I'm just quoting from recommended sections... But definately more than anything make sure you have ONLY GL-4 hypoid in transfer and GL-5 hypoid in diff.
EDIT: checking now the 75w 90 is a GL5 oil. Get that transfer drained and put GL-4.
Later evos use the GL5 in the transfer: not the early 1-3 models...
From what I know, the later evos used gl5 in transfer and diff. But from reading one or two places and from what i knew of the early GSR & evos, the transfer was GL4.
If you're getting sites that say they use GL5, then I guess it's fine.
^^ Release bearing would be across the gear range but this noise is special you see , from what the aussies told me it could be as a result of something slack on that particular shaft.. also when im on 5th gear my shifter tends to rock back forth when i power up and goes off throttle... only 5th gear so im led to believe something is def wrong inside . i have driven the car all the way up to 180km/h and no noise no rattling nothing ... just when i go off throttle on 5th gear .... i will let you guys know what i find ... i have a spare box anyways ....
so i pulled out the back plate of the gearbox and this is what i found : slack 5th gear shaft, reverse synchro worn due to excessive play as a result of slack nut. the wave spring was also compressed and didnt have that spring like effect to keep the synchro tensioned. luckily i have a spare E2 rs box on the ground i compared the backplate and the synchro but the synchro is a little different as compared to the E3 im wondering i can just replace the ring with the E2's
i have almost de same prob my prob is when am drivin n i mashin gas i hear dat noise comin some where in de front n when i take my foot off de gas i dont hear de noise de engine is a 6a13 non turbo n its a tranny i have have not a gear box but de gears does go in good..... de car is a vrg galant