8000 series PTO clutch
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=159943
Printed Date: 14 Apr 2026 at 10:37am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 8000 series PTO clutch
Posted By: Peterson
Subject: 8000 series PTO clutch
Date Posted: 12 Apr 2019 at 2:24pm
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Hey guys wondering if someone knows if a 7 disc PTO clutch from a 8550 or 4w305 would fit into a 5 disc clutch tractor? Tractor will have a engine that makes 270 at the crank and dont want the PTO to slip. The Plates and Frictions are the same but dont know if the clutch assembly itself will physically fit into the tractor. never had either apart before. Thanks guys!!!! ------------- 7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2 |
Replies:
Posted By: Ron(AB)
Date Posted: 12 Apr 2019 at 11:48pm
| I think so. |
Posted By: Lonn
Date Posted: 13 Apr 2019 at 6:20pm
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How long before you think you'll need to replace the rest of the drivetrain? ------------- -- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... - Wink I am a Russian Bot |
Posted By: Peterson
Date Posted: 13 Apr 2019 at 6:23pm
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Thing is this is going to be strictly a PTO use tractor. Have plenty other tractors for drawbar pulling. This tractor still will be all "Allis" powered too. ------------- 7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2 |
Posted By: Kevin in WA
Date Posted: 13 Apr 2019 at 7:35pm
| 426??? or did you find a way to stuff a 516 in it? |
Posted By: Peterson
Date Posted: 13 Apr 2019 at 7:39pm
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Well I guess I'll leave the cat out of the bag. She is going to have a 685I from a N7 stuffed into her. Going to be the dedicated chopping tractor. But it will look a bit different than a 8000 series. I'll be making a build thread once I get more parts collected and made. Engine is sitting on the shop floor at this moment. ------------- 7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2 |
Posted By: Michael V (NM)
Date Posted: 13 Apr 2019 at 9:24pm
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I looked at your tag line...would like to see pic of the D17 with the 3500.. I bet that took some figuring how to get the tin work to look good,,besides all the other "make it fit" stuff Seems like I remember seeing pictures of some of y'alls work before and its first class all the way.. |
Posted By: Peterson
Date Posted: 14 Apr 2019 at 7:30am
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Well the D17 is still in the shop, engine is slowly getting built. Kinda if a side project. Play money is getting hard to get with the milk price. But its not dead. I'll make a build thread for the 8050 here soon. ------------- 7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2 |
Posted By: Kevin in WA
Date Posted: 14 Apr 2019 at 3:48pm
| The 685I is so wide in the front cover area, I hate to think of what your going to do to the frame rails to make that fit. |
Posted By: Peterson
Date Posted: 14 Apr 2019 at 5:57pm
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It's not that wide. Should fit without cutting much. No more than the 426s frames are cut. ------------- 7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2 |
Posted By: Michael V (NM)
Date Posted: 14 Apr 2019 at 11:22pm
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I'll be watching this one too.. I think the 516 shoulda been in the 8070's... cool project.. at least your keeping it all Allis,, not doing a 8.3 cummins ,,, altho that's a good choice also...
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Posted By: Peterson
Date Posted: 15 Apr 2019 at 9:26pm
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Cant wait to get it on the chopper. Was doing some figuring today. Frame rails well need 6 inches added in length. So not to bad. Got another set of rails already. Instead of adding into the one set and having two seams, cut two sets up and have one seam. ------------- 7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2 |
Posted By: wekracer
Date Posted: 15 Apr 2019 at 10:00pm
| You may want to put the seam as far forward as possible. Less bending moment on your weld the farther forward you go. Probably won’t matter either way though as long as you don’t load it down with weight |
Posted By: Peterson
Date Posted: 15 Apr 2019 at 10:03pm
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Plan on welding the rail and then plating on the inside. And have the front axle pivot frame bolted to both pieces of the frames. ------------- 7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2 |
Posted By: WLHD21
Date Posted: 19 Apr 2019 at 12:56pm
| Do you think the radiator will keep the 516 cool enough under load? The N7 radiator is huge, |
Posted By: Peterson
Date Posted: 19 Apr 2019 at 3:42pm
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I'm hoping it will with my 9 blade poly fan I have. I'll be making a build thread for it pretty soon. So be on the lookout. ------------- 7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2 |
Posted By: Peterson
Date Posted: 19 Apr 2019 at 4:02pm
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This is the fan. https://www.directupload.net" rel="nofollow">  ------------- 7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2 |