Hey guys, recently build my new engine 2.4L stroker. I deleted the balance shaft with OEM stub shaft. The problem is that starting from 3.5k rpm appears a very strong vibration from driveshaft. It looks a lot like the vibration that I found in a youtube video, but I have deleted the balance shafts.



That may be happening? Sorry for my bad English.

 

Did you have the engine balanced ? And if it's the driveshaft , I'd start there, balance shaft usually vibrate the steering wheel

 

The engine is not balanced, but the crankshaft is Manley for stroker, and clutch and flywheel assembly is Exedy twin disk .The steering wheel does not have any vibration. The vibration is felt in pedals, on the gear knob, and a little in the seat. There is much noise coming from this vibration, as if it were a buzz.

Could it be the vibration to the stub shaft to remove the balance shaft?

I have heard that everyone in 2.3L and 2.4L mounts AMS or GSC balance shaft eliminator. Could this be the cause?

Thanks for the answer

 

strokers without balance shaft vibrate a bunch. more than 2.0 big time. what you are experiencing is normal.

 

My 2.3 doesn't vibrate at all. No balance shafts just a properly balanced motor. It's actually smoother than the stock was.

 

As good as the Manley cranks are, they are not balance from the factory. I've seen as much as 120lbs of side load on Manley cranks