Garden Tractors - AC 917 Hydro

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AC 917 Hydro

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=200345
Printed Date: 02 May 2025 at 4:14pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: AC 917 Hydro

Posted By: Jrbing13
Subject: AC 917 Hydro
Date Posted: 16 Mar 2024 at 2:59pm

I recently brought my dad's old AC 917 Hydro back to TN. It has a 42" mower deck and a rototiller. The tractor hasn't ran since 2015 but was always stored in a clean dry environment. I took it to a small engine repair person in the hopes of getting it running again. I believe my dad purchased this in 1979 or the very early 80's. It has a Briggs and Stratton 18hp horizontal engine, industrial commercial grade, cast iron bore. If memory serves me, it originally had a twin cylinder engine but I remember my dad taking it back to where he bought it because there were problems with it and I'm pretty sure they replaced it with this Briggs. I don't have any of the paperwork for this tractor like the owners manual, parts list, etc. I bought a new battery for it and the mechanic says the engine turns over but it needs a new ignition coil and likely a voltage regulator. That's what we know is wrong now, I'm sure there are other things that will need to be replaced just due to age and wear. My question for you experts out there is, do you know where I might find a manual for this thing and any other materials relating to parts. Any help of course is greatly appreciated. Thanks

Replies:

Posted By: Gary
Date Posted: 16 Mar 2024 at 3:20pm

ebay is one source:

https://www.ebay.ca/itm/145434873708?itmmeta=01HS4EH90BS6RCAA1P9AMTVNBA&hash=item21dc980f6c:g:bkcAAOSw9bdh7IKg&itmprp=enc%3AAQAJAAAA0OAc7K603vKlWuH7YJvDPu13Y4rAB0rVc%2FO1KNqvXhhbXC4skn9pMR2KF6kAAS2HBTnNTXqbn3RdfjL4Ygo7Bu0p13Zg41rSrQZ5pcopwWT2lqdnEKljQ2caOpgNBbGP29ahcPYomXp7su5dSNaigbcF3EJzY1Cetre9mO0Zst0SIOsDO2CxpDMn%2FXHY1zOpXvnI%2BQ%2FutJYH6UrwEEniEjQAMvhtlks1DGLfq%2FaBHM6aW5%2B2bknHKLiqnPD0I7AF9UroYz7x%2By9S6ZPIS6Z8hzc%3D%7Ctkp%3ABk9SR6CQxY7JYw" rel="nofollow - https://www.ebay.ca/itm/145434873708?itmmeta=01HS4EH90BS6RCAA1P9AMTVNBA&hash=item21dc980f6c:g:bkcAAOSw9bdh7IKg&itmprp=enc%3AAQAJAAAA0OAc7K603vKlWuH7YJvDPu13Y4rAB0rVc%2FO1KNqvXhhbXC4skn9pMR2KF6kAAS2HBTnNTXqbn3RdfjL4Ygo7Bu0p13Zg41rSrQZ5pcopwWT2lqdnEKljQ2caOpgNBbGP29ahcPYomXp7su5dSNaigbcF3EJzY1Cetre9mO0Zst0SIOsDO2CxpDMn%2FXHY1zOpXvnI%2BQ%2FutJYH6UrwEEniEjQAMvhtlks1DGLfq%2FaBHM6aW5%2B2bknHKLiqnPD0I7AF9UroYz7x%2By9S6ZPIS6Z8hzc%3D%7Ctkp%3ABk9SR6CQxY7JYw

Posted By: Mikez
Date Posted: 16 Mar 2024 at 9:41pm

Welcome to the forum. Just remember if you get an original allis parts book the part numbers listed won’t help you. You need simplicity part numbers. And if not original engine the parts book won’t help with those parts. If engine has tag with serial number and spec number, you can look some up that way.

Good luck

Posted By: Codger
Date Posted: 16 Mar 2024 at 10:27pm

Simplicity is the route to follow for original parts. As mentioned the engine tag is what you will need if engine parts are required no matter the brand.

I had a couple of 916H tractors and always liked them as a heavy built unit. Newer tractors with foot operated direction changes were nicer and easier, but the times have changed. The 900 series were right to the point of needing power steering being that heavy on the steer axle although the 917, and 918 were lighter citing the aluminum cylinder block(s).

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That's All Folks!

Posted By: Mikez
Date Posted: 17 Mar 2024 at 6:58am

If you don’t have a dealer you work with we can help locate parts

Posted By: Jrbing13
Date Posted: 17 Mar 2024 at 8:41am

Thanks so much!

Posted By: Jrbing13
Date Posted: 17 Mar 2024 at 8:42am

Yea, I was told Simplicity was the way to go with parts. Thanks

Posted By: AC720Man
Date Posted: 24 Mar 2024 at 6:27pm

I have a 917H and it came from the factory with a Kohlor Twin 17 series II. Engine swaps are common and as said above go by the engine tag for parts not the tractor itself.

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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD

Posted By: ac fleet
Date Posted: 19 Apr 2024 at 10:26am

917 here with an 18 in it. its a beastly thing! came with 5 attachments but I dont use it anymore. too many sunstars with power steering got in the way! lol! Tillin is done by IH 504 and cultivating by Horse tillers. Did just get a Simp. front ender tiller, also have a Simp. 7016 rear ender that I use a lot.

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