720 Allis Chalmers
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=170304
Printed Date: 25 Apr 2024 at 3:52pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 720 Allis Chalmers
Posted By: Mike K
Subject: 720 Allis Chalmers
Date Posted: 19 Apr 2020 at 10:22pm
| Put my tiller on today. When I try to till in the ground, the motor slows and will not come back. what is wrong with the onan motor. |
Replies:
Posted By: exSW
Date Posted: 20 Apr 2020 at 8:28am
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Governor? This is a swag answer. ------------- Learning AC...slowly |
Posted By: Steve in NJ
Date Posted: 20 Apr 2020 at 9:41am
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Mike, Check your fuel delivery and your air intake. Maybe air cleaner is pluggin' up and not getting enough air. Inspect the spark plugs to. Might need a couple new plugs. (especially if they're Champions) Few easy things to check... Steve@B&B ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |
Posted By: injpumpEd
Date Posted: 20 Apr 2020 at 3:16pm
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Mine loses a lot of power when the points need re-set. ------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers! |
Posted By: AC720Man
Date Posted: 20 Apr 2020 at 3:29pm
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Points is a good place to start, they require to be checked every 100 hours or sooner. I also had a fuel filter slowly clog over the winter last year. Drove me nuts until I saw very little fuel in the clear filter. Replaced it and she ran like a champ. ------------- 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: AC720Man
Date Posted: 16 May 2020 at 7:33pm
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Well, interesting thing happened yesterday. Got one of my 720’s out for the first time this year. I usually use it to till my garden and run the bush hog. Yesterday while tilling the garden she sputtered about 5 minutes after I began. Came back about 5 minutes later, she started right back up for 30 seconds and shut down again. So, 2 years ago same thing happen. Replaced the fuel filter and off she went and never gave anymore issues. Same thing yesterday, replaced what appeared to be a perfectly good filter. Turned it upside down and a bunch of rust came out. Filter was mostly clogged. New filter and I finished tilling the garden, bush hogged, and used the blade to level some gravel for a patio. Simple fix ------------- 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: AC720Man
Date Posted: 16 May 2020 at 7:37pm
   ------------- 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: Steve in NJ
Date Posted: 18 May 2020 at 6:28am
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Great pics Rob! I like to see em' workin'. Like I said, that fuel delivery system sometimes bites ya. LOL! Steve@B&B ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |
Posted By: 8070nc
Date Posted: 22 May 2020 at 6:26pm
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Id like to know where you got the rotary cutter ------------- 1984 80780 1957 D14 DES 300 with 25000 engine 616 tractor |
Posted By: AC720Man
Date Posted: 24 May 2020 at 7:49pm
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Got very lucky. Went to buy another 720 a few years ago. Had a front blade to go with it and a parts tractor that was involved in a garage fire. As I was loading it the fella surprised me and said do you want the ole bush hog that goes with it? I said absolutely, where is it? He said you walked right by it, it’s covered up under that tarp. Needless to say I was ecstatic. I brought it home, sandblasted it, and gave it a paint job. It works great mowing around my fence rows. ------------- 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: Gary Burnett
Date Posted: 27 Jun 2020 at 6:20am
I have one I'll sell.Mechanically fine deck needs some work.
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8070nc wrote: