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How will I know if the springs are touching?
The flywheel was skimmed quite alot.
It was previously skimmed by a mechanic but not done right.I needed to replace clutch as it shattered.These guys skimmed it again to remove the previous 2mm step.They tried to cut a new step and this was a mess as the cutter was not sharp enough.I told them to skim the messed up step out (it was about 2mm) and do not put a step in.So basically it was skimmed 2 times with about 4mm metal removed in total from the flywheel.It is currently driving for almost 10 000km with this new clutch.No problems.
I was present with everything and we bolted the flywheel/clutch assembled as one to the crank and then installed the gearbox.
Everything seemed fine.

It seems I will have to balance the whole engine sometime in the future.
I was actually looking for answers like "It's ok you can drive the car like that, the vibrations will not do anything".
It is that lesson again of "if you want to do something, do it right the first time."

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Yes it could well have made the flywheel go out of balance. It may also have skimmed to much of the surface so the springs in the clutch plate are touching the flywheel bolts.

It could be something touching the body. I installed a 5 speed in a 1200 once and the breather tube on the top of the gearbox was just touching the tunnel and it made a real racket. I almost took the box back as it sounded like it had a major internal problem.

I also think it is maybe harmonics as the console that is arround the gearlever also starts to make a harmonic type of vibration sound when I hit these revs.
When you hold onto the gearlever while it is making these vibrations it is a very similar feeling like I explained above of the hammer drill that I feel on the gearlever. A more rrrrrrrr type of vibration on the gearlever.
(The description sounds stupid but that is the only way I can describe it).
My tailshaft was once out of balance and it made a totally different vibration in the back.
The vibration does not feel like when your wheels are at the front out of balance and the whole front starts to shake. It is more like a harmonic type of vibration. That is why I wanted to know if you other guys have similar vibrations who's engines are not balanced but totally stock.
Maybe I must take it to my mechanic and show him and ask his advice.

gino
My exhaust is a straight 2,5 inch exhaust all the way to the back with one mufler at the back. No mufler in the centre.

I think it has more to do with the harmonics of the system
My stock 120y A12 does very similar to what your describing
Are you running a the stock or tuned exhaust?

Did you by chance select hammer instead of drive?

I wouldnt compare it to those vehicles.

theres no way i could be engine...I reckon its drive line like flywheel/pressure plate, or could be tailshaft

I checked everything on the engine.
I also checked the rotor cap and internals.

Everything is fine in the rev range but when I start to hit high revs (4500rpm) the engine starts to make small vibrations that gets more as the revs increase.
Basically as I explained in the previous post.
Like a hammer drill you press against the wall to start drilling. You can then feel the vibrations on your hand as you drill.
It is sort of the same vibrations.
I would just like to know if my engine is out of balance or if this is kind of normal vibrations maybe even harmonics coming from an engine that is not balanced.

What I am compairing to is modern cars of today. I drove the other day a volkswagen polo and the other day a Nissan Almera and revved them to 6000rpm 6500rpm.
They where nice and smooth. Am I wrong to compare a 25 year old car to new technology?

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Sounds like a good place to be looking to me. Is everything securely mounted?

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