High Rmp Gear Change

[Redback]

Hi guys. before you say its been answerd before i looked cos ive seen it somewhere myself... lol. couldnt find it.

when i go to grap 2nd 3rd 4th with a quick gearchange in high rpm it grinds.... i aint on the gas during the gearchange and the clutch is fully activated (as in fully in). and ideas. think it may be syncros or something.. maybe even clutch.

it has a thrust bearing squeak, maybe that mite be the problem.

goes in no problem once the revs have died down.

cheers guys.

Edited November 6, 2005 by Redback

[Redback]

bump. wanna knoe weather i should pull it out tonight or while ive got time off work

[Redback]

bump

[ferni]

yep will be syncros in your gearbox. And i think you mean thrust bearing not thrush

[Risking]

It sounds like you have either the syncro problem or a clutch problem.

Does the clutch have much freeplay or does the pedal pick up right on the floor?

If the clutch opperation is normal then its going to be a syncro problem it is however odd that 3 syncros would all go at once.

Before you go pulling the box out, drain the oil and fill it with dextronIII auto trans fluid. if the shift quality is better you have worn syncros, if its the same then there is more than likely something amis inside the box providing the clutch is okay

[R31Nismoid]

dude, there is no need to bump a thread 3 times in an hour

As the others have stated, i think the clutch might not be fully disengaging.

Or you just have a stuffed gearbox

[Redback]

cheers guys. pretty sure its the gearbox now. clutch aint that old really. as for the bumps was because im working today... wanted to drop it out last night. its all good.

[RedEmblem]

Just change gears slower

[ferni]

or double clutch.

or try that redline oil that everyone swears by (i've never tried it)

[race_snooze]

yep will be syncros in your gearbox. And i think you mean thrust bearing not thrush

<{POST_SNAPBACK}>

yeap mine did the same till got it rebuilt, new clutch, syncros, bearings, and labour $3000 feels like a new one now and so it should

[ICER33]

the same thing was happening in my mates car.

result was a stuffed thrust bearing and had to remove gearbox.

[Redback]

i mite start off with the thrust bearing first... seem to be a cheeper option.. mite go with a hole clutch kit and be done with it

Edited November 7, 2005 by Redback

[Duncan]

redline oil is great for worn synchros and cheaper than pulling the box out to replace the thrush bearing.

you can tell if it is clutch or synchros by whether the crunch happens at idle, eg car standing still with motor running. If it still crunches when you change quickly at idle it is a clutch not disengaging problem

[SLY33]

sorry, but lol at "thrush" bearing:D

[Redback]

sorry but lol at the "the orage carrot". lol.

on topic... ill try some new gearbox oil then if that works ill just give the thrust bearing a little crc or something just to get rid of the squeel for the mean time.

[Nozila]

sorry, but lol at "thrush" bearing:D

<{POST_SNAPBACK}>

s

sorry but lol at the "the orage carrot". lol.

:lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol:

as for your crunching, read above.

[ICER33]

got to love the orange carrot call!!

[Redback]

anyway cheers for ya help guys.

[lwells]

redline oil is great for worn synchros and cheaper than pulling the box out to replace the thrush bearing.

you can tell if it is clutch or synchros by whether the crunch happens at idle, eg car standing still with motor running.  If it still crunches when you change quickly at idle it is a clutch not disengaging problem

<{POST_SNAPBACK}>

Mmm.. nice tip duncan, ta. Having some troubles with second gear myself so it would be nice to work out if its the box or the clutch (again). Anyone got a rough price on replacing synchros/overhauling the gearbox?

[RB240Dav]

Since nobody's mentioned it, don't forget to check the clutch fluid resevoir.