hi i have just one question in my car (evo 9 gsr speed 6) when i start my car in natuer (not in any gear i mean) and when ı push gas pedal in 4000-4500 rpm a vibration comes from down when we look down my shaft vibration seems very good because when the guy fits a screwdriver to shaft near to transfercase vibration gets out the same promlem starts when ı was driving my car. i also take my engines head out and fit again to make port polish.and my clutch is hks twin plate my clutch finished its life i will chance it. is this problem can be from clutch or from head operation ı dont understand? best regards.

 

bump

 

So your shaft is vibrating very good? Your obvious problem is that you're picking up good vibrations. They're giving you excitations.

All jokes aside, even the most obvious one about looking down and seeing your shaft vibrating, what shaft are you talking about? If it's not a balance shaft, or a crank shaft, or a cam shaft, you might wanna try the transmission forums. That said, I don't really have any clue what you're talking about. Your clutch shouldn't vibrate when it's engaged in neutral unless it's royally blowed up, but I don't know of any shafts right there I would pry on with a screw driver...what WAS he doing with the screw driver??

I understand you're from turkey, but you'll have to be a little clearer if you want a good answer. Your "bump" was perfect though, although I usually give it more than 7 minutes.

 

You're a tool lol...the bump thing was funny

 

I save a lot of money on ratchets.

 

I think the issue is from the clutch

 

i think he may have been speaking about the propellor shaft

 

check timing marks on the balance shaft since the head came off.