912H engine replacement - will it fit?
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=96932
Printed Date: 08 May 2024 at 6:45pm
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Topic: 912H engine replacement - will it fit?
Posted By: GreenOrange
Subject: 912H engine replacement - will it fit?
Date Posted: 26 Oct 2014 at 8:46pm
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Anyone know off the top of their head - Will a Kohler K301S from a late 70's 7012 simplicity fit in a 1984 912H Allis?
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Replies:
Posted By: Mikez
Date Posted: 26 Oct 2014 at 10:31pm
Yes it will. We have done the other way around. Put motor out of 912 into 710. But I'm haveing a brain fart, I don't remember how I switched the voltage regulator. That's the difference. The charging system. Somebody on here will have the answer.
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Posted By: HudCo
Date Posted: 27 Oct 2014 at 2:59pm
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does your 301 have a generator srtarter or a regular starter that gen might interfere with the hood a little . k301 is one heck of a good engine. mag ignition will use a differant key switch functions than the battery igition.
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Posted By: Mikez
Date Posted: 27 Oct 2014 at 5:31pm
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The motor will bolt in the same. There's more room under a 900 hood. Do you have the voltage reg on both motors. The older voltage reg is bigger an I'm pritty sure plug is different. It can be done. Just have to change some wireing.
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Posted By: GreenOrange
Date Posted: 28 Oct 2014 at 8:40pm
Both engines have the conventional type starter. I only have the voltage reg from mine. I'll do a bit more investigating on the charging specifics and take it from there. My 912H is real nice, so I don't want to butcher things up to make it work - sounds like this would be a good option.
Thanks for the help guys!
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Posted By: Mikez
Date Posted: 28 Oct 2014 at 9:20pm
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John there is no butchering. I'm sorry I can't remember as it was 15 years ago and my late grandfather helped me. My dad had bought me a 710 and it blew up and we had a 912 6speed in barn that had done cartwheels up the road after falling off a trailer. But anyway we switched the engines and the wiring stumped us at first then I remember it was simple. Good luck
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Posted By: GreenOrange
Date Posted: 29 Oct 2014 at 7:42pm
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I definitely appreciate the help! I'm thinking since they were made only about 10 miles from me, I'll see if I can track down one of their engineers to see if they recall.
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Posted By: Mikez
Date Posted: 29 Oct 2014 at 10:31pm
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Try asking over in the farm equipment side. Maybe get a few more people to look.
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Posted By: Mikez
Date Posted: 30 Oct 2014 at 7:42am
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The other difference is the exsahst. Just switch it over to the 900 style. If the elbo is in there from the 700 you just turn that elbo to the angle needed, then I believe you have to take a few head bolt studs out of you 900 and put in your new motor for the muffler bracket.
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