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Correct terminology aside, I know what you're referring to but this is not correct to write "all." The 265 and the 283 used only a crank hub without a damper.
Some engine shops balance the cranks with flywheel and balancer in place. It depends on the way they want to balance things. It's harder for shops without the different mandrels to balance a flywheel and clutch seperatly.
I know because I had to have my 0 balance flywheel and clucht rebalanced because of a vibration. Although the flywheel and clutch were both supposed to be 0 balance, they were out 11 grams causing a serious vibration.
I asked for several shops around here to do a seperate balance job, but they didn't have the mandrels, saying they normally balance the crank with the flywheel and balancer in place.
I finally went to a specific balance shop. He confirmed it but could balance the items seperatly because he had the mandrel lying around.
So I think they external balanced dampner means nothing.
No idea how you can check without taking the pan off.
Some engine shops balance the cranks with flywheel and balancer in place. It depends on the way they want to balance things. It's harder for shops without the different mandrels to balance a flywheel and clutch seperatly.
I know because I had to have my 0 balance flywheel and clucht rebalanced because of a vibration. Although the flywheel and clutch were both supposed to be 0 balance, they were out 11 grams causing a serious vibration.
I asked for several shops around here to do a seperate balance job, but they didn't have the mandrels, saying they normally balance the crank with the flywheel and balancer in place.