720 scare
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=194574
Printed Date: 23 Nov 2024 at 12:05pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 720 scare
Posted By: AC720Man
Subject: 720 scare
Date Posted: 11 Apr 2023 at 10:37pm
Big scare yesterday, got my trusty 720 out of the shed to do some sickle mowing. Checked the oil 2 weeks ago and then started her for the first time after winter hibernation. She fired right up and I let her warm up and then shut her back down. Picked up a new filter and oil yesterday and pulled her out of the shed to get to the main shop to change it. As I let her warm up she began to smoke and run rough. Finally she quit running while I was retrieving the oil and filter. She wouldn’t restart. After about 10 minutes of scratching my bald head, I pulled the dipstick and much to my surprise it was way overfilled. And then I smelled the dipstick, the Oder of gasoline. Darn carb stuck after I shut it down 2 weeks ago I guess. Drained the oil/gasoline mixture and my heart sank as I was thinking the worst. Bearings wiped out, scared cylinders etc...thankfully after looking at the drained fluids I didn’t see any metal fragments. Let it drain overnight thinking the gas would evaporate. Changed the oil and filter. The gas coming past the rings actually flooded the plugs shutting it down. Replaced the plugs and it fired right up. Oil pressure light went out like it supposed to and it ran like it always does. After 5 minutes of running with no strange sounds I mowed for about an hour. No more smoke and she ran flawlessly. What a relief. Installed a fuel shutoff for piece of mind. Never been an issue but it goes to show it can happen.
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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
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Replies:
Posted By: Fred in Pa
Date Posted: 16 Apr 2023 at 7:48am
That's good but when you want to check for metal in oil , take the oil filter apart .
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He who dies with the most toys is,
nonetheless ,still dead.
If all else fails ,Read all that is PRINTED.
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Posted By: AC720Man
Date Posted: 17 Apr 2023 at 4:43pm
Good point Fred, ran it again yesterday with no issues. Hoping I dodged a bullet.
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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
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