Re: Evinrude flywheel magnets
If the flywheel key was sheared, the magnets would have been in the wrong position when the points opened, and so you'd get no spark. This is not like a modern system where a sheared flywheel key only throws off timing; the points off a cam on the crankshaft are what times the engine. <br />The flywheel being out by as little as 5° significantly weakens spark to the point where it won't fire a charge.<br />The flywheel nut must be tightened to exactly 105 ft/lbs or the key will shear. It's one heavy flywheel afterall! Since your flywheel has evidently spun, it would be a good idea to lap the taper to the flywheel. Put some lapping compound on the taper and set the flywheel on it and turn the flywheel, until any high areas have been ground off. Lapping compound is grease mixed with fine grit, and is used in auto repair. This step should be done carefully, frequently checking the flywheel. It should only take a handful of turns - overzelousness here can lead to a destroyed flywheel and crank.<br />Then you need to clean the flywheel hub and taper carefully with a degreasing agent (acetone, or some such thing) so that no lubrication remains. If there is any oil or grease on the taper, it will cause the hub to spread and perhaps crack. Then you can torque down the flywheel nut.<br />The flywheel key is somehow 'special'. You can get one from your local Johnny/Rude dealer. There ought to be marks on it, one towards one edge. That edge must face down.<br /><br />Good luck!
