| | 820 keyway size? | |
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TheEquineFencer Member
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Join date : 2013-02-19 Points : 4304 Posts : 90 Location : Farmville,NC, USA
![820 keyway size? Empty](https://2img.net/i/empty.gif) | Subject: 820 keyway size? October 15th 2016, 6:20 pm | |
| How tall/wide is the input shaft key?
I'm thinking about using a centrifugal clutch on an OP B&S 18HP, and make/modify the clutch and direct mount it to the input shaft so the engine sits on top of the 820. I think the input shaft is 3/4 OD. | |
| ![Go down](https://2img.net/i/empty.gif) | | Doug Site Owner
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![820 keyway size? Empty](https://2img.net/i/empty.gif) | Subject: Re: 820 keyway size? October 15th 2016, 6:27 pm | |
| Im pretty sure its a 3/16" woodruff key like every other trans, but being a 3/4 shaft it could be a 1/4" woodruff. ![](https://i.servimg.com/u/f86/19/98/54/71/separa13.png) Head Forum Administrator ** Chat Moderator ** Facebook Page AdminATLTF Facebook Page ** Chatbox ** How To Upload Pictures
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| ![Go down](https://2img.net/i/empty.gif) | | TheEquineFencer Member
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![820 keyway size? Empty](https://2img.net/i/empty.gif) | Subject: Re: 820 keyway size? October 15th 2016, 6:30 pm | |
| Thanks, I may go to TSC and see if they have some of what I need to get started on this project, I want to build a Rear Engine ATU.
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| ![Go down](https://2img.net/i/empty.gif) | | Doug Site Owner
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Age : 29 Join date : 2012-12-24 Points : 7662 Posts : 3044 Location : Lebanon County, PA
![820 keyway size? Empty](https://2img.net/i/empty.gif) | Subject: Re: 820 keyway size? October 15th 2016, 6:34 pm | |
| If you go to the tractor drawbar stuff there should be a row of Countyline bulk hardware and I think there is an assortment of woodruff keys mixed in there. If not just get one of each of the Hillman ones in the drawers by the bolts and stuff. ![](https://i.servimg.com/u/f86/19/98/54/71/separa13.png) Head Forum Administrator ** Chat Moderator ** Facebook Page AdminATLTF Facebook Page ** Chatbox ** How To Upload Pictures
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