gear box crapo

[splinter]

hello
just got my euro for a few days and I notice that in 2nd and 1st gear when I dont have my foot on accelerator the car will jerk even at 20km/h. it feels like as if its going to stall but wont, the jerkiness will cease when I put my foot on the accelerator. slowing down from higher speeds this doesnt happen. any of you experience this? I've just learnt manual.

cheers

[albii]

it could be the electronic throttle you are feeling..dont worry it annoyed me at first but then you learn to drive it smoothly

[splinter]

but this is when I am not pressing the accelerator. and it kicks hard a couple of times.

[yfin]

You are new to manual - give it some time before you start a thread saying "gearbox crapo" :D . The Euro gearbox is up there with the best.

Keep practicing.

[EuroAccord13]

Nothing to do with the fantastic Gear Box me thinks (first three gears synchro, close ratio six speed) Must be because you are new to manual :D

[V205]

I reckon it's just a case of getting use to the drive-by-wire throttle.

[nEUROtic]

Yeah i found it a tad jerky when i first got it as well. Give it some throttle let it have some revs when u change, smooths it out until u get used to it

[splinter]

ok sorry I shouldnt conclude, else everyone on here will jump on me hehe

neurotic, this happens when Im slowing down with clutch all the way up, not during gear change.

[Pum[Z]]

U got to get used to the drive by wire... Its a bit jerky in the beginning but once u get used to how to change gears it shouldn't jerk like that...

Tip.....release the clutch slowly and smoothly, don't release it fast.. The only time u release it fast if u wanna give the car a bit of stick...

[Andi]

Perhaps you're travelling too slow? But yeah, it takes abit of experience (especially when in a new car) to get any car driving smoothly. :)

[aaronng]

It's jerky, because the DBW is telling the rev to speed up to burn the remaining fuel in the intake. Once that is done, it goes back to normal, and is the equivalent to lifting off the accelerator suddenly in 1st and 2nd gears, i.e. jerky.

[as001]

Its taken me about over 10000km to finally get smooth on the throttle, you'll get there mate

[nEUROtic]

Yeah i know, you can still give it some revs while down changing gears. Id suggest that. Also be smooth like they said. Even dont wear shoes for a while till u get a real good feel.

To add another question? Does anyone feel the effects of drive by wire? Reading about it before I drove the car I expected like all these different things to be happening. I hardly notice it to be honest. Any other throughts?

[coladuna]

Read his post properly people. He's not talking about jerkiness when he's shifting gears.

Splinter, it's perfectly normal for all manual transmission cars to become jerky when you put your foot off the accelerator in first gear and to less extent, in second gear.

[splinter]

thanks for that guys
just want it to be smooth, in time if required.

wouldnt careless about DBW crap if its gonna rock like on a bull.

[aaronng]

Splinter, it's perfectly normal for all manual transmission cars to become jerky when you put your foot off the accelerator in first gear and to less extent, in second gear.
This is true. It's just that the drive by wire is trying to do the same thing as a jerky foot. So in addition to your foot, you have to worry about a jerky dbw.

I found a way to overcome this is not to lift your foot completely off the accelerator. Just keep it on so that it does not accelerate but rather just maintains speed. Less jerky this way.

[albii]

you just get used to it...it becomes a natural thing to drive it smoothly after a month or so ..

[VirIIx]

This is true. It's just that the drive by wire is trying to do the same thing as a jerky foot. So in addition to your foot, you have to worry about a jerky dbw.

I found a way to overcome this is not to lift your foot completely off the accelerator. Just keep it on so that it does not accelerate but rather just maintains speed. Less jerky this way.

I know a few of my friends do this while changing gear, they have the foot still on the accelarator to keep the revs constant and up. It does make a difference sometimes if you do it right :)

But i don't consciously do this.

Eventually it will all smooth out and it'll be smooth. I notice the most nit picky slightest crap changes which no one else would notice. And i notice it when my friends' drive as well sometimes.

It's nice to be aware i guess.

[aaronng]

I know a few of my friends do this while changing gear, they have the foot still on the accelarator to keep the revs constant and up. It does make a difference sometimes if you do it right :)

But i don't consciously do this.

Eventually it will all smooth out and it'll be smooth. I notice the most nit picky slightest crap changes which no one else would notice. And i notice it when my friends' drive as well sometimes.

It's nice to be aware i guess.
When I shift, I lift off completely. I don't dare wear my clutch any more than needed. I'm not sure if you read my poll in the lounge on whether ppl press and release clutch with their heel on the floormat or totally suspended in the air. I've since changed to pressing and releasing clutch without touching the floormat (hence releasing faster) and it totally smoothened the shift if you get the right revpoint. Before with my heel on the carpet, it would stil be "unsmooth" even if I matched the rev perfectly.

[coladuna]

Before with my heel on the carpet, it would stil be "unsmooth" even if I matched the rev perfectly.

It's impossible to have unsmooth shifts if you indeed matched the revs as you claim.

As for keeping the foot on the accelerator as you shift, people who shift slowly would probably be better off doing this than not doing it because by the time they shift into next gear, the rev would've dropped too much and they will have to rev the engine slightly to match the revs.

[aaronng]

It's impossible to have unsmooth shifts if you indeed matched the revs as you claim.

As for keeping the foot on the accelerator as you shift, people who shift slowly would probably be better off doing this than not doing it because by the time they shift into next gear, the rev would've dropped too much and they will have to rev the engine slightly to match the revs.
I suspect that when I released the clutch with my heel on the floormat, I was not fast enough to finish the release without the revs dropping slightly too low and hence causing an unsmooth shift.

With regards to keeping your foot slightly on the accelerator during shifts, you're right, it helps if the driver tends to shift slow.

For me, I prevent the revs from dropping low by taking advantage of the slight "rev up" each time you release the throttle.

[VirIIx]

I know i personally release it completely. I do know i get fussy if my foot isn't on the pedal properly and that has an affect on how smooth the shift is. I'll try and take a bit of notice as to if my heel rests or not on the floor when shifting.

[aaronng]

Just got back from getting my license renewed. I took notice of my shifting and really, having my heel off the floormat made a big difference in the smoothness, eventhough I'm releasing the clutch much quicker! I still can't quite master taking off in 1st gear from standstill without resting my heel on the floormat though..

[VirIIx]

my heel is still on the floor. I've tried it a few times in the air.. but it feels a bit weird.

I don't think releasing it too quick is good lol.. feeling the jerkiness is bad

[aaronng]

That's the trick though. At first it was jerky, but now I can somehow release it quick at the right point, so there is zero jerk. I had to look at the tacho the first few times, but now I can time it without looking.

Of course, being at the wrong rpm still happens, and when it does, there is a sharp jerk. :D

[PNR888]

Splinter:

I think the jerkiness u experienced may due to 2 reasons:
1. u r new to manual..
2. The crutch is new.. the new crutch tend to bite/grip in better, so more sensitive to rev drop--> hence jerkiness.. (Is this true? correct me if i am wrong).

By the time the crutch wears-in a bit, u should have already master the rev/crutch matching, and you should get smooth ride all the way..

[splinter]

PNR
cant be 1 when I let go on friends 2K WRX that didnt happen. It's probably no2 and I damm well home it is and not DBW crap. pisses me right off buying 40K horse. when this happens you can see the head light level of the car on the back of the car in front dip, and thats not good image for almighty Euros :)

[aaronng]

You'll get used to it, I think it took me about 4-6 months to conquer the DBW jerk. If you move your foot slowly through the accelerator levels, you'll find that there is a point where it is an on-off instead of a gradual opening for other cars. That point is extremely jerky. I can have the car moving slowly in 2nd smoothly, and I just release the accelerator very slowly and I'll see the speed drop slowly and smoothly and just at one point, it's as through the throttle butterfly suddenly snaps shut and it jerks like a horse. That's why you can counter it by leaving your foot on the accelerator just pass that on-off point and still go slow.

Reading vtec.net, there is a chart on the TSX's DBW throttle actuation compared to a cable throttle. At the small openings, the throttle is actually larger with DBW than it is with cabled throttle. I don't think it's a "feature" of DBW, but rather Honda did not fix the on-off point properly. There are other cars with DBW that don't have this jerk.

[PNR888]

I dont know if it is just me, but I dont actually feel any difference between Euro's DBW throttle and cable throttle of other Manual cars we have in the family (IS200 and V6 camry).

Splinter, maybe get a Honda mechanic or sales to driver your car (Coz they must have driven lots of other manual Euros) and see if yours is different to others..

Or, to get an unbias opinion, attend next Melbourne Euro Meet/cruise, get other friendly Euro drivers to drive your car, see if they can pick up anything strange.

cheers

[yfin]

PNR
cant be 1 when I let go on friends 2K WRX that didnt happen. It's probably no2 and I damm well home it is and not DBW crap. pisses me right off buying 40K horse. when this happens you can see the head light level of the car on the back of the car in front dip, and thats not good image for almighty Euros :)

I disagree. If the car "horses" it is caused by the driver.

[Aratahu]

5AT: I haven't had any trouble whatsoever with the throttle, in fact I must comment on how much I totally love the feel of it, _especially_ during slow driving. I guess riding a sportsbike and playing games like liveforspeed.net must help.

[Suntzu]

Ive had no issues with the throttle either.

But, my cars only done 1800km and I have noticed a distinct mild rattle when downshifting with a few revs on board when engine braking. I dunno if its normal but you can hear it with all the windows up. Im gunna get it looked at next service. Has anyone had this?