Flywheel cracks

Tightened up the flywheel on the '48 B. Not finally torqued when I notice these two cracks. I assume the flywheel is now on over size paper weight. Torque wrench was at 120 in/lbs when I noticed these cracks. What would cause that?
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When you tighen the two bolts, the flywheel clamps on to the spline. The material at the crack site is in tension to allow the flywheel to close up. Perhaps an oversize flywheel or undersize spline which means the material must stretch more. Therefore, higher stress leads to cracking.

I am not a John Deere person but I suspect yours is not the first flywheel to crack in that area.
 
Ive got a good flywheel if you are going to replace it, email is open Im in northeast arkasas, it came off a 1950 model but get the casting # to be sure?
 
Did you possibly mean to say ft/lbs for the units in your OP. 120 in/lbs would only be equal to 10 ft/lbs which is not all that much.

Agree with others. At least you caught it now.
 
For shipping, try Fastenal, the nut and bolt place. they have a division that uses their trucks to carry things from store to store. You take it to a store near you and they deliver to a store near the recipient for very reasonable price.

CPeter
 
I have a flywheel available for sale .For more information contact me by email or call 573 535 8952 . Thanks, Tom Ziegler
 

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