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JD 70 flywheel

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shaun wallace

Well-known Member
Needing flywheel for 70 LP or gas. This one been broke in hub. Been welded before. Is this a one model only part. JD parts makes look as if.
 
Shaun, Often times the flywheels are repaired due to slop on the splines on the end of the crankshaft,,,peoole overtighten the bolts thus cracking the hub. You may be able to locate a decent flywheel with a good hub and decent grooves, but that may also slop when you put it on due to wear on the grooves of the crank, I suggest you look into a taperlock flywheel: a guy in Ohio cuts the hubs out and puts in new ones allowing them to lock in a different way,,,not the cheapest fix...but probably not much worse than buy a good used one...and he will give you a core for your old one.
We were ready to do the same, fortunately ours was not cracked or prepaired, but it was starting to slop beyond where normal tightening would work...a friend who builds race engines tossed me a bottle of green loc tite and said try this 1st...knock on wood, it"s been fine for about 6 years, but if it starts to slop again we are aff to ohio.
 
Allen machine shop.
What happens is some tinkerer without a torque wrench takes a guess at flywheel bolt torque.
Either not tight enough or too tight and the bolts are stretched. The end result is the same with a loose flywheel.
Then somebody comes along with fine thread grade eight bolts and torques them to 400lb ft.And they wonder why the flywheel cracks.
Anybody trying to weld a cracked flywheel is lacking common sense.
 
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