[EURO] vibration when clutch is pushed

[EuroDude]

A question for you Euro Manual owners...

(brand new euro) I noticed that when I push in the clutch to change gears, I hear and feel a slight vibration which I find strange.

For instance;

Accelerate in 2nd gear
Time to change to third, push in clutch
The car will vibrate a bit for 1 second while the RPM lowers (i.e. 4000rpm->2500rpm)
Pop it into third, release clutch


Anyone notice this? I hope there isnt a problem with mine. :o



...and yeah I hit upper VTEC for the first time today, and damn the power is freakin sweet :) Shame it only lasts for ~1200rpm tho.

[corn_flakes]

mmm not too sure, never noticed...

what i do notice is sometimes 2nd gear is too high for some corners that i turn....the car shudders a bit when i exit the turn and accelerate, but shifting back down to first gear isn't that feasible - the cornering was slow but not that slow to shove back into 1st....

also noticed that 1st gear aint that great with torque??? although i've never tried stepping on it in first, only taken it up to about 40km/hr in first....feels like i'm gonna hurt my car if i rev it higher....lol :o

[yfin]

only taken it up to about 40km/hr in first....feels like i'm gonna hurt my car if i rev it higher....lol :o


oh dear. you haven't vtec'd 1st gear yet. just do it man - take it to 7300rpm :p- otherwise we will think you are a granny


Eurodude - take the car to a dealer to look at. When you say vibration - where is the vibration felt. In the clutch or the car generally?

[EuroDude]

Third gear is easily the best gear in the Euro MT - the lower->mid RPM torque is great!

I find second gear ok around corners, but its lacking in power compared to third gear unless its at high RPM.


As for first gear, yes I noticed that the gear is quick through the RPM, but lacks power :(



But yeah, the vibration kind of feels like clutch shudder. Maybe it happens because the car has only done 300km, and will 'smooth out' later after my 1000km oil change.

Well at least my gearbox feels much smoother now. For the first few days I noticed the gear stick was a bit ruff in terms of movement - I could feel metal->metal hesitation, but its way better now :)

[EuroDude]

Eurodude - take the car to a dealer to look at. When you say vibration - where is the vibration felt. In the clutch or the car generally?

I'll have the dealer look at it when it gets its 1000km service.

The vibration is felt from the gearbox I think, but its hard to tell. It almost seems like the fly-by-wire throttle hesitates while the RPM is lowering.

[EuroDude]

ACtually the vibration is not the gearbox, rather its the engine that vibrates at around 2000rpm. Higher than 2500rpm, the engine is smooth as a babies butt.


do you also notice a bit of vibration at 2000rpm?

[Chris_F]

you should feel first gear in a euro with some power mods.. i think your opinion will change haha

[EuroDude]

lol so the vibe is normal then?

[albii]

eurodude............try a k and n panel filter in the stock airbox and feel the difference.

[albii]

vtecing 3rd is where you feel it as stays in the power band longer.

[aaronng]

Eurodude, you solved the problem yet? I know the cause and the solution. ;)

[EuroDude]

Is it a problem? I mean no one has really confirmed they notice a vibration at 2000-2500rpm, so I'm guessing its normal :D

So whats the cause and solution?

[aaronng]

Nah, it's not a problem. Honda would call it a "feature"

It's from the drive by wire. When you accelerate and want to change gear, the instant you lift you foot of the throttle you get a slight surge of revs. It's for emissions purposes to burn any excess fuel. If you press the clutch pedal in at that instant, you get the vibration. To avoid it, lift you foot off the throttle and press clutch an instant later, about 1/4 of a second later.

[EuroDude]

I see - thanks for the explanation, lol I wish I could disable that 'feature'.

The problem is that if you are in 1st or 2nd, the longer you lift of the throttle with the clutch engaged, the harder the car will jolt - a bit of a catch 22 senario ;)

But I'll try it anyway, I guess its all about precise timing.
Then again, the vibration is not really a problem - I just wanted to make sure there is no problem with my car.


cheers.

[aaronng]

I see - thanks for the explanation, lol I wish I could disable that 'feature'.

The problem is that if you are in 1st or 2nd, the longer you lift of the throttle with the clutch engaged, the harder the car will jolt - a bit of a catch 22 senario ;)

But I'll try it anyway, I guess its all about precise timing.
Then again, the vibration is not really a problem - I just wanted to make sure there is no problem with my car.


cheers.
Hehe, most of us wish we could... :p
If it starts to jolt when you release, then you have waited too long to press the clutch in. It's a very very short time between releasing the accelerator and pressing the clutch in.

[Tobster]

although i've never tried stepping on it in first, only taken it up to about 40km/hr in first....feels like i'm gonna hurt my car if i rev it higher....lol :o
It's interesting the way different people "feel" the car -- or it may well be the individual engine build.

Right from the start with my car, it would easily pull 4000 rpm before it even started to feel like it was doing any work.

The Euro is the first car I've ever hit the fuel cut-out (and I was in first) because it just felt like it could keep revving -- it revved so smoothly and quickly!