Original: More modern 90 Â V6 engine designs avoid these vibration problems by using crankshafts with offset split crankpins to make the firing intervals even , and often add balancing shafts to eliminate the other vibration problems .
Simplified: More modern 90 Â V6 engine designs avoid vibration problems by changing the crankshafts design and firing timing . Balancing shafts are often used to remove the remaining vibration .