I have been told in France by few machinists that the crank on Deere motors should not be grinded, as it will break. I have heard of at least 2 cases like this, on a 8640 and a 4440.
They said the hardening is not deep enough and you have to harden them again. Deere is selling shells to put on regrind cranks, so that makes me wandering if they are thrue.
I read on other sites than the key to regrind was the fillet. And also that the grinding was work hardening the crank.
So what do you do on Deere cranks that are slightly bad?
What should be the fillet size on a 466 crank?
How much have you grind them with success?
Last, are the Deere cranks cast iron or forged steel?
Can I buy FP-Diesel cranks, Mahle Clevite, original John Deere (i cannot pay that) ?
Thanks!
Frederic
They said the hardening is not deep enough and you have to harden them again. Deere is selling shells to put on regrind cranks, so that makes me wandering if they are thrue.
I read on other sites than the key to regrind was the fillet. And also that the grinding was work hardening the crank.
So what do you do on Deere cranks that are slightly bad?
What should be the fillet size on a 466 crank?
How much have you grind them with success?
Last, are the Deere cranks cast iron or forged steel?
Can I buy FP-Diesel cranks, Mahle Clevite, original John Deere (i cannot pay that) ?
Thanks!
Frederic