Worn synchro?

[jaffa_cree]

I have just started to notice a click/crunch noise when shifting to 2nd gear, and while launching off 1st gear
Not sure what it is but from doing a search on the forums it is pointing me towards a worn synchro.

To be more thorough on the description.
Car is totally stopped.
Clutch pedal in, in 1st gear.
As i let the clutch out and give it gas it will click/crunch like two times.
Then as i shift into 2nd, it will also click/crunch.
The sound is always there for 1st gear no matter how much/less i rev it.
With 2nd gear, the sound does minimise or sometimes disappears if i give it some rev.

Doesn't seem to happen on 3,4,5 or R.

Does this sound like a worn synchro?

[aaronng]

Your click and crunch while in 1st gear when taking off shouldn't be the synchros since you already are in gear.

[ctn]

Pillowball upper mounts?

[jaffa_cree]

Thanks guys.
I will get it looked at ASAP but that wont happen for another 2 weeks

I sure hope it is not synchros as i was told they are very expensive to fix in the vicintiy of $1500.

Just went for another drive to listen out to the problem.
All the gears shift in smoothly, no need for a shove.
Noise doesnt seem to be detectable with the window up BUT is VERY noticeable with windows down. Could be why i only heard it today seeing i usually keep the windows up with AC on.
It is a very high pitch click/crunch.
Seems to always happen when launching off 1st gear when giving gas, and 2nd gear happens MOST of the time as i let the clutch pedal out.

Can some one describe the infamous worn synchro crunch?
Even better, if some one has a wav file that shows the sound.

[jaffa_cree]

I finally remember what the clicking sound reminds me of.
It is the sound you get when you change gears on a mountain bike, those shimano gears. It sounds like it is seeking for the gear and trying to engage it in. Like the sound of a toothed belt trying to fit smoothly on a bearing.

Does this rule out on synchros?

[Menthu Rae]

Sure it aint your LSD engaging?

I don't get any "crunch" sounds - but I do find 2nd is a little hard to downshift into from 3rd sometimes, and 1st is very tight - heel-toe'ing on the downshift solves it though, and slides in quite easily after a nice throttle blip... I have no problems on upshifts ^_^

Get it checked out, but it could possibly your LSD - however - it IS McChooks old car... sooo... it could very likely NOT be the LSD... ^_^

[aaronng]

Shimano gear go *shlick*. Try shifting gears when your car is off and at a standstill (of course). Tell us if you hear that same sound.

[jaffa_cree]

Sure it aint your LSD engaging?

I don't get any "crunch" sounds - but I do find 2nd is a little hard to downshift into from 3rd sometimes, and 1st is very tight - heel-toe'ing on the downshift solves it though, and slides in quite easily after a nice throttle blip... I have no problems on upshifts ^_^

Get it checked out, but it could possibly your LSD - however - it IS McChooks old car... sooo... it could very likely NOT be the LSD... ^_^

Doubt it is the LSD (not even sure do i have one).
1, 2, 3, 4, are all very smooth to shift into. Only 5th is a little stiff.
Just doing a slow rolling start on 1st will create those clicking noises and after i release the clutch in 2nd the noise is there again.

The crunch/click noise doesnt occur WHILE shifting to 2nd, it occurs as i ease off the clutch. Does that atleast rule out synchros?

Trying to get it checked out, but busy work schedule prohibits that for another week at the least

[jaffa_cree]

Shimano gear go *shlick*. Try shifting gears when your car is off and at a standstill (of course). Tell us if you hear that same sound.

With the car off and clutch to the floor, i can shift through all gears 1 2 3 4 5 R effortlessly with no crunching/clicking noise. 5th is a tad stiff but no problems shifting, R makes a very slight click but was told this is normal.

[racinghonda]

My car does the same thing. I think it is the diff or the CV joint taking up the slack. It also happens when roling along in 2nd gear and back off then ease the throttle on again.

[AMPERAGE]

Have you checked your geabox oil? Sometimes simply changing it can make the world of difference in cutting down noise and making the whole lot feel smoother.

The reason that I suggest oil is because my 5th was a little sticky and made a little noise too. I dumped the old gearbox oil, filled it back up with Motul GEARBOX 80W-90 and problem solved. It also made the rest of the gears feel silkier too. Just an idea is all...

[jaffa_cree]

My car does the same thing. I think it is the diff or the CV joint taking up the slack. It also happens when roling along in 2nd gear and back off then ease the throttle on again.

That is right.
That clicking/grinding sound appears when moving in 1st or 2nd.
It is more audible at lower speeds so if i gas it more when launching off 1st, or shift into 2nd at a higher rev the sound is much softer, and at times not there.

If it is not a synchro problem, can it be a gear bearing issue with my 1st and 2nd. Worn teeth?