My experience with swapping 616 engines has been,.. if nether the f/f or crank have witness marks they have been balanced independently. Following this in several swaps I have only seen one with witness marks where I had both crank and f/w balanced together.

__________________


1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"