'43 John Deere B flywheel removal

jd2cyl1943

Member
Location
Bemidji, MN
Okay, so I got the flywheel bolts/nuts off and am stumped as how to get the flywheel off. I believe it's rusted on to the crankshaft. My uncle made some oak wedges. Oak was not a match for the flywheel. Any advice? My dad and I prefer to keep our toes from looking like pancakes as well. :)
 
I love it in the manuals when it says, using a suitable tool remove the . . .. They never mention thqt 'SUITABLE involve a 48 pipe wrench, a blocl and tackle, a acentyline toarch and 200 pounds of penetrating <fluids and the same amount of patience. Presuming there's a little rust involved, we have to remember that adding oxygen to an iron compund swells both parts of it, tightening the cinch on everything. It also
adds weight to it too, but that's not a material problem. Another thing is that it will break/crack easier than you think it will. Don't ask me how I knnow. Keep dousing it twice a day with Kroil, PB blaster, acetone
and atf, or your favorite blend. Morning and night smack the end of the shaft and the areas inner edges of the outside rim. Apply serious heat to the area daily also and allow to cool naturally. The object is initially
not to move it, but get it to wiggle the diameter of an eyelash. That lets the loose juice and heat get in further into the surfaces.

I don't know what you intend to do with it, but remember that when you put it back on you've probably removed enough rust from both that it will crack when you try to tighten it up. Post back then. Again, don't ask me
how I know. Good look with your good little tractor.
 
Drill two holes through an angle iron to match the holes in the flywheel. Put a spacer on the crankshaft and tighten the bolts. Ron MN
 
I've had to fab up a puller like greenmech mentioned, although I used C channel instead of angle iron. slobber the end of the shaft up good with penetrating oil and then put tension on with the puller. Do not over tension it as you might crack the cast flywheel, but if it does not move with good tension, whap the flywheel a few times with a good heavy dead blow hammer. That should gain you a little bit of ground, then tension, whap and repeat again as necessary. It sometimes helps to remember, while you are cussing at the stubborn blankety blank, that it is better to have a good tight-fitting flywheel than a loose one.
 

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