1G lightweight flywheel and pulley

[Adrian97]

Did you guys hear somethings abot this, when u change oem flywheel to lightweight flywheel its necessary to replace crank pulley to lightweight also ? apparently, you can damage rod bearings without replacing stock pulley to lightweight pulley ..?

 

[DSMPT]

You double posted. Should delete one.

No, it is not necessary to replace the crank pulley to lightweight even you use a lightweight flywheel. And it won't affect much the bearing life even you use it without replacing the crank pulley.
But I don't recommend you to use a lightweight crank pulley unless the car is for races and don't mind over haul the engine often. It doesn't damage bearing immediately but this makes the bearing life shorter for sure. The stock crank pulley would go bad sooner or later, so if you are planning to replace it, should go with some after market harmonic balancer, such as ATI or Fluidampr. Fluidampr is maintenance free, so easy to keep it.

 

[Adrian97]

Yes I see, Can't delate it...
Thanks for answer
i will buy oem one if needed