Quote:
Originally Posted by polarisrmk
From what i have read on the manual swaps from the 240 D to the 617 there sometimes is a slight vibration  because the flywheel isn't heavy enough to balance out the 5th cylinder i am assuming someone that has done a manual swap into thier 123 or 126 back me up on this. |
We have a 617 in a 4 speed 240 with the 240 flywheel and there is no vibration. There are small chistle marks on all the cranks and flywheels, for 0 balance just line them up. There are some 617 powered boats around, I have a friend in Long Beach with a 41' Blue Sea trawler withg twins. Look for a heat exchanger and riser.
Dan