[HenkkaWRC]

Hi!

So, I have a small (lol) issue with my -09 i30 1.6 gearbox. The gearbox is "crunching" every time I change from 1st gear to 2nd quickly. It doesn't make any noices if I change from 3rd to 2nd or if I wait long enough for the rpm's to drop down before pulling the gear in. All the other gears go in smoothly. The car has been serviced at Hyundai dealership so I'm 100% sure that it's not like a oil weight issue. Probably "just" worn synchros?

It is probably cheaper to replace the whole gearbox with a new used one. Does the 1.4L G4FA use the same gearbox as my 1.6L G4FC? There is one gearbox from a wrecked 1.4L with only 51K km near me.

The vehicle is otherwise in great shape and has only 120K km on the clock so it still has some value and I would like to keep it running.

[tw2005]

How's the clutch? Do you have to bury the pedal to the floor and the pickip almost immediate when the pedal comes back up? Any difficulty selecting reverse or grinding?

Just wondering if you have a dragging clutch.  A few of us with manuals seem to end up with clutch issues as they age.

[Surferdude]

I seem to remember some issues like this being reported years ago,
Was it something to do with cable adjustments?

[tw2005]

not the same boxes. I'd expect the 1.6 to have different ratios

4300023151 1.4L petrol

4300023170  1.6L petrol

[HenkkaWRC]

How's the clutch? Do you have to bury the pedal to the floor and the pickip almost immediate when the pedal comes back up? Any difficulty selecting reverse or grinding?

Just wondering if you have a dragging clutch.  A few of us with manuals seem to end up with clutch issues as they age.

I've owned the vehicle for 4 years now. It had 51k on the clock when I bought it. To be honest, the clutch has always felt a little bit "lifeless" and I find it quite difficult to operate. I feel like it doesn't have a clear pickup point like many vehicles have. I'd say the clutch has more of a late pickup point than immediate. I haven't actually ever questioned the condition of the clutch. I've always thought this light and weird clutch is just a quality of these i30's. The clutch doens't slip of that I'm pretty sure.

Yes, sometimes I have problems with reverse. The gear won't go in and I have to put it back to neutral, lift clutch and then try again.

[HenkkaWRC]

I seem to remember some issues like this being reported years ago,
Was it something to do with cable adjustments?

I really hope it's something minor like that. I did some googling and the heapest used gearbox I found is 750€!

[mickd]

Sounding more clutch adjustment,  damper issue.

[nzenigma]

Sounding more clutch adjustment,  damper issue.

I agree with you Mick.

Im not reading a concise report on point of contact or pedal travel. However, unlike us, these guys generally drive manual cars, so "bit lifeless and quite difficult to operate" tells me plenty.

Therefore, @HenkkaWRC  no need to change gearbox, look at hydraulic action of clutch, check to see if you have the damper and modify as described here. FD clutch master cylinder

[mickd]

Sounding more clutch adjustment,  damper issue.

I agree with you Mick.

Im not reading a concise report on point of contact or pedal travel. However, unlike us, these guys generally drive manual cars, so "bit lifeless and quite difficult to operate" tells me plenty.

Therefore, @HenkkaWRC  no need to change gearbox, look at hydraulic action of clutch, check to see if you have the damper and modify as described here. FD clutch master cylinder

Was going to suggest searching the club files but mind was elsewhere
    

[sundiz]

Hyundai transmissions are not fast. Try slower change. Old getz had same issues. Just had to do smoother movements with the stick. One point I learnt to shift fairly fast, but in no means was the change fast compared to bmw or other transmissions.

[HenkkaWRC]

Hyundai transmissions are not fast. Try slower change. Old getz had same issues. Just had to do smoother movements with the stick. One point I learnt to shift fairly fast, but in no means was the change fast compared to bmw or other transmissions.

Yeah, I started to shift slower when the crinding broblem began. All the other gears go in with zero problems except 2nd and (sometimes) reverse. I have to take a look at the clutch damper, but I'm still quite worried about the condition of the gearbox since I may have driven the car a bit too hard in relation to what the car is designed for.

[sundiz]

From 1 to 2 is the most challenging shift.

I've noticed little bit of stiffness on the gear stick. Especially in cold temps. It has been 55tkm since last transmission oil change. Gotta do that after the winter. Last time there was great improvement in the smoothness of the gear changes with new transmission oil. I use castrol multivehicle oil, as they advertised it should work well in cold temps (and it has been working well). Just gotta change the oil every 60tkm.

[nzenigma]

 Just gotta change the oil every 60tkm.

 

Or move......live in Spain? 

[GaKu]

I was tempted to get a transmission oil change but the manual says 'fill for life'. Is that misleading? The manual does say the gear shifts get better as car gets warm and so it does.

I too am not happy with the gearbox either and like the OP just thought the car was born like this.

[Dazzler]

I was tempted to get a transmission oil change but the manual says 'fill for life'. Is that misleading? The manual does say the gear shifts get better as car gets warm and so it does.

I too am not happy with the gearbox either and like the OP just thought the car was born like this.

Better oil or a fiction modifier additive like this will definitely help.

Improve manual gearbox smoothness - Google Search

Nulon G70 Manual Gearbox and Diff Treatment 125ml for sale online | eBay

[sundiz]

Is that misleading?

Yes.

Of course the oil will last the cars life time. The life time ends when the transmission brokes down... Often manuals say that the oil needs to be changed if you drive in "challenging" conditions. And when you read those conditions, normal use will match many of them.

[Lorian]

Gearbox oil change made this particular issue go away on my previous car too (U2 from 2009).  IE the issue of a grindy change from 1st to second only in cold weather, on a fast change.

Clutch damper failure of course could also play its part, or the clutch pedal rod issue.

[nzenigma]

I was tempted to get a transmission oil change but the manual says 'fill for life'. Is that misleading? The manual does say the gear shifts get better as car gets warm and so it does.

I too am not happy with the gearbox either and like the OP just thought the car was born like this.

My BMW ( also designed in freezing Germany) has gb oil for life. Dont understand 

As fire engulfs our homes down here, we tend to forget the winter conditions in the North.


In the Australian context, the problem would hardly rate.  Today, the outside temperature will be about 38 degrees C. Obviously, higher in Gerard's hell-hole called Ipswich 

I would have thought that an intelligent local would have informed the OP that the winter temperature could be a factor. He/she made no mention of an improved gear change during summer. 

[GaKu]

improved gear change during summer. 

That would have been interesting. My car doesnt have better gear change in summer. It feels the same and only gets better after driving about 5 kms.
Lately I hear a thump sound sometimes when shifting down to 3rd or 1st only when the car is in motion.

[nzenigma]

I too am not happy with the gearbox either and like the OP just thought the car was born like this.

To put context to your latest post and sundiz's advice, I have owned quite a few FD manuals and have found the box to be really easy and slick. Sold a manual diesel to a guy who did track work, he drove it over our mountain and he came back super impressed....cash on the spot. 

[GaKu]

Hmmm...Will get a gearbox oil change for the next service then and see how it goes.

[nzenigma]

Hmmm...Will get a gearbox oil change for the next service then and see how it goes.

Dont forget the original comments/advice above regarding the clutch damper. A common complaint thats been side tracked. You may have one or two problems.

[BC]

Hmmm...Will get a gearbox oil change for the next service then and see how it goes.

Have much the same issues as you.(Doesn't like reverse when cold and notchy 1st ->2nd). I replaced the gearbox oil with the one often recommended on this forum - didn't make any difference.
Now I just put up with it and accept it's a minor irritation in an otherwise good car.   
Good luck.

[Dazzler]

Hmmm...Will get a gearbox oil change for the next service then and see how it goes.

Have much the same issues as you.(Doesn't like reverse when cold and notchy 1st ->2nd). I replaced the gearbox oil with the one often recommended on this forum - didn't make any difference.
Now I just put up with it and accept it's a minor irritation in an otherwise good car.   
Good luck.

How is the clutch take up point. Maybe you have a damper issue?

[GaKu]

Dont forget the original comments/advice above regarding the clutch damper. A common complaint thats been side tracked. You may have one or two problems.

Does the damper issue go away after the car is warm and been through a few gear changes? I dont see a shift in the bite point and it has been pretty much the same for a long time.

[nzenigma]

Dont forget the original comments/advice above regarding the clutch damper. A common complaint thats been side tracked. You may have one or two problems.

Does the damper issue go away after the car is warm and been through a few gear changes? I dont see a shift in the bite point and it has been pretty much the same for a long time.

No Stays same. Only you can judge if bite is low. If in doubt get rid of it.

[nzenigma]

Hmmm...Will get a gearbox oil change for the next service then and see how it goes.

Have much the same issues as you.(Doesn't like reverse when cold and notchy 1st ->2nd). I replaced the gearbox oil with the one often recommended on this forum - didn't make any difference.
Now I just put up with it and accept it's a minor irritation in an otherwise good car.   
Good luck.

How is the clutch take up point. Maybe you have a damper issue?

Thanks Dazz 

As I said above. 1 its a nice slick gearbox. 2. only poster can judge the damper issue.

[BC]

Hmmm...Will get a gearbox oil change for the next service then and see how it goes.

Have much the same issues as you.(Doesn't like reverse when cold and notchy 1st ->2nd). I replaced the gearbox oil with the one often recommended on this forum - didn't make any difference.
Now I just put up with it and accept it's a minor irritation in an otherwise good car.   
Good luck.

How is the clutch take up point. Maybe you have a damper issue?

The take up point is ok. Also raised the issue with the dealer and they found nothing wrong.

[nzenigma]

I was going to suggest a difference between Czech Vs Korea boxes, but remembered the last manual I had was a 2L CW. It was fine.

@BC  what do you mean when you say does not like reverse?

A 1st to 2nd notch MAY be 'explained  ' by poor syncro action. But reverse gear is inactive until its engaged.

[Dazzler]

I was going to suggest a difference between Czech Vs Korea boxes, but remembered the last manual I had was a 2L CW. It was fine.

@BC  what do you mean when you say does not like reverse?

A 1st to 2nd notch MAY be 'explained  ' by poor syncro action. But reverse gear is inactive until its engaged.

My 2008 CRDi manual was a bit recalcitrant going into reverse and when selecting 1st from time to time if I recall. I did trade it in late 2010 so the memory is somewhat faded.