Quote Originally Posted by winfred
if it's smooth it can be reused, if you gotta spend for a new one get rid of the twin mass and get something better

Winfred - how do I judge what "smoothe" is? I have one out of my other engine on the table - should I take a pic and post it? Is there a way to measure run out or what would be a sign of it not being optimal.

With turbos on these motors its recommended to keep the dual mass because its heavier and loads the better more, helping the turbo spool.