Sam Pasch 449 #1 Posted December 30, 2020 Does anyone know what size the deive belt is on an 867. I got a new one but it slips so bad that the tractor barely moves. Thanks. Share this post Link to post Share on other sites
ebinmaine 68,325 #2 Posted December 30, 2020 Should be half inch by 70. What did you get? Share this post Link to post Share on other sites
Sam Pasch 449 #3 Posted December 30, 2020 I'm not sure what this one is it was given to me with the tractor Share this post Link to post Share on other sites
ebinmaine 68,325 #4 Posted December 30, 2020 Any numbers letters stamps castings anything like that on it? Share this post Link to post Share on other sites
Sam Pasch 449 #5 Posted December 30, 2020 2 minutes ago, ebinmaine said: Any numbers letters stamps castings anything like that on it? I will go look 1 Share this post Link to post Share on other sites
ebinmaine 68,325 #6 Posted December 30, 2020 I've not had good luck with dayco brand belts. Several of us use Tractor Supply belts but I've also had challenges sizing them correctly.. I'm a big fan of Gates Green belts. Share this post Link to post Share on other sites
Sam Pasch 449 #7 Posted December 30, 2020 So the belt says it's a half by 70 but it slips like crazy. It was a used belt. Can they stretch out? Share this post Link to post Share on other sites
ebinmaine 68,325 #8 Posted December 30, 2020 It's a common misconception that belts stretch but that amount is minuscule. What actually happens is that the angles on the sides wear off which allows the belt to sit further into the pulley grooves. That effectively makes it longer. 2 Share this post Link to post Share on other sites
ebinmaine 68,325 #9 Posted December 30, 2020 Part of the issue with the 67 and earlier tractors is that they used a small diameter engine pulley so there's nowhere near as much contact patch as there is on later models. Share this post Link to post Share on other sites
Ed Kennell 38,634 #10 Posted December 30, 2020 3 hours ago, Sam Pasch said: Does anyone know what size the deive belt is on an 867. I got a new one but it slips so bad that the tractor barely moves. Thanks. Are you sure the belt is slipping. There should be some smoke if it slips that bad. Missing keys in axles and input pulleys also cause slippage...just sayin. Share this post Link to post Share on other sites
Sam Pasch 449 #11 Posted December 31, 2020 4 hours ago, Ed Kennell said: Are you sure the belt is slipping. There should be some smoke if it slips that bad. Missing keys in axles and input pulleys also cause slippage...just sayin. I can see the pulley moving but the belt says stationary. I can also smell it burning. Share this post Link to post Share on other sites
rjg854 11,475 #12 Posted December 31, 2020 Just wondering if possibly the belt is somehow wedged by the the belt guard? I've had this happen. I now always make sure the belt is engaged before putting the guard back on. 1 Share this post Link to post Share on other sites
