Re: No more vibrations (almost)
The formula that worked for me is to weigh the small end of the level conrod and add that to the weight of the piston assembly, then divide by 2 and subtract the weight of the small end of the level conrod you weighed earlier. Take that number and match it with some solder. Wrap the solder around the rod and put the crank pins on some homemade level, parallel rails. It will roll and settle with the heaviest side down. Remove material from the opposite side until it will roll and stop at different places every time, showing it has no heavier spot. The heavy spot may change a little as you go, so you have to adjust your material removal accordingly. I encourage you to make a youtube video as I don't have a motor to balance at this time. Good luck and let us know how it goes.