Mudrig150 298 #1 Posted January 7, 2020 So I'm helping a buddy set up his custom build 416-8 with an inline twin. Since the engine is mounted directly middle of the tractor, the belt won't line up, so he is adding a jackshaft in the middle and already has a plate with a couple bearings, and a double pulley. It's a 4" double pulley and desperately needs replaced, due to him parking the tractor outside for over 3 years with a bare steel pulley. He was trying to get it off the shaft to clean it and bent the pulley bad. Where do I get good a double pulley? Share this post Link to post Share on other sites
ebinmaine 62,980 #2 Posted January 7, 2020 You can try surplus center.com or float around on the fleabay for a while Share this post Link to post Share on other sites
8ntruck 6,358 #3 Posted January 7, 2020 Make a custom hub/adapter plate to make a double pulley out of two standard pulleys? Good luck. Share this post Link to post Share on other sites
Ed Kennell 35,626 #4 Posted January 7, 2020 Can't you move the engine an inch to the right? You will have a tough time fitting a working clutch /idler between a jack shaft and the tranny pulley. Share this post Link to post Share on other sites
wallfish 15,912 #5 Posted January 7, 2020 pick your bore size https://www.surpluscenter.com/Pulleys-V-Belts/Finished-Bore-Pulleys/?page_no=1&fq=ATR_Grooves:2&fq=ATR_PulleyOutsideDiameter:3.95 By using a keyed shaft for the jack shaft, you can use 2 separate pulleys instead of a single, 2 groove pulley. Doing that allows you to gear up or gear down the speed of rotation for the final drive. Just throwing that out there 2 Share this post Link to post Share on other sites
Mudrig150 298 #6 Posted January 8, 2020 17 hours ago, ebinmaine said: You can try surplus center.com or float around on the fleabay for a while Will do. 16 hours ago, 8ntruck said: Make a custom hub/adapter plate to make a double pulley out of two standard pulleys? Good luck. We would, but he stupidly built it so that only 1 of the locking collars for the pulleys would fit, which is how the pulley originally was. 13 hours ago, Ed Kennell said: Can't you move the engine an inch to the right? You will have a tough time fitting a working clutch /idler between a jack shaft and the tranny pulley. He already has the clutch figured out, he put the jackshaft as far ahead as he could. 12 hours ago, wallfish said: pick your bore size https://www.surpluscenter.com/Pulleys-V-Belts/Finished-Bore-Pulleys/?page_no=1&fq=ATR_Grooves:2&fq=ATR_PulleyOutsideDiameter:3.95 By using a keyed shaft for the jack shaft, you can use 2 separate pulleys instead of a single, 2 groove pulley. Doing that allows you to gear up or gear down the speed of rotation for the final drive. Just throwing that out there Thanks. Share this post Link to post Share on other sites
