I'm in the middle of an IMS replacement, and trying to figure out if I have a good flywheel, or one that needs replacement. The Porsche test I got from the dealer says that you should be able to move the flywheel hub independently of the contact face by 15mm and, when you let it go, it should return to it's original orientation.
I can't find anything that tells me where the 15mm is measured. Is it at the hub, or at the edge of the flywheel?
My flywheel moves around 5mm before it gets to a very stiff-feeling springy region. In that 5mm it doesn't return to the previous position, it simply stays there. Beyond the 5mm it returns when you let go of it.
The pictures below show that 5mm movement.
Does this flywheel need to be replaced?
