616/620/720 engine belt install
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=120557
Printed Date: 30 Nov 2024 at 4:57am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 616/620/720 engine belt install
Posted By: coggonobrien
Subject: 616/620/720 engine belt install
Date Posted: 18 Mar 2016 at 7:51am
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any tips for getting the things on? seem like a major pain with the engine unbolted. also what is the purpose in the fiber disc bolt to the pulley on the fly wheel?
Thanks David
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Replies:
Posted By: Steve in NJ
Date Posted: 18 Mar 2016 at 8:49am
I thought the fiber disc in there was for vibration purposes. The smaller garden Tractors have em' to. That really was my own perspective on that. As far as the belt, I haven't put mine on yet. My engine is just sitting in the Tractor right now, but I gotta' pull the engine back out again and make sure the Starter engages correctly before I bolt that puppy in for good...
Steve
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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Posted By: mnoonan-NEWI
Date Posted: 18 Mar 2016 at 11:33am
With the engine mount bolts off and the driveshaft disconnected, you should be able to just tip the engine back to get the belts on. I used this procedure also to remove the belts.
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AC CA, Ferguson TO-20, Ford NAA, M-M BG, AC #3 Mower, SC Plow, PH Digger, AC 720's with Ark 700 loader & Brantly Backhoe, "Mini B" w/flathead Ford V8
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Posted By: coggonobrien
Date Posted: 18 Mar 2016 at 11:39am
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what do you mean by drive shaft disconnected.
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Posted By: mnoonan-NEWI
Date Posted: 18 Mar 2016 at 11:51am
coggonobrien: The front driveshaft coupler to the engine pulley which is probably already disconnected.
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AC CA, Ferguson TO-20, Ford NAA, M-M BG, AC #3 Mower, SC Plow, PH Digger, AC 720's with Ark 700 loader & Brantly Backhoe, "Mini B" w/flathead Ford V8
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Posted By: coggonobrien
Date Posted: 18 Mar 2016 at 1:31pm
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gotcha, thought that was what you meant but i secretly hoped the was another point that made it fall together :)
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Posted By: den/southern illinoi
Date Posted: 18 Mar 2016 at 4:55pm
I'm guessing that you mean the pair of belts off the engine. After fighting the on a couple motors, we found the easiest way is (with engine bolted in place) to have the twin pulley off the engine, put the belts on both sets of pulleys (top and bottom) then hold the clutch petal down. This will let you put the pulley back on the engine. Den
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Own 4 wheel 20, 2-5015, 5020 and associated equipment and 2 electric forklifts.
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Posted By: Tracy Martin TN
Date Posted: 18 Mar 2016 at 6:24pm
The fiber disc is for misalignment. HTH Tracy
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No greater gift than healthy grandkids!
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Posted By: coggonobrien
Date Posted: 29 Mar 2016 at 7:46am
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well I got them on but I need to readjust the tensioner. How tight should I take it?
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Posted By: HudCo
Date Posted: 29 Mar 2016 at 11:03am
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spring hieght 7 3/4 before running engine 8 inches after running engine clutch pedal out belt stop clearance 1/4 before running engine 1/16 to 1/8 inch after running engine clutch pedal out pulley clearance 1/ 16 inch clutch pedal in those belts will wear in the old pulleys very quickly so it will not be long before it needs adjusting again then it should stay along time
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Posted By: ac720nut
Date Posted: 31 Mar 2016 at 11:07am
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Ok so what process did you use to get belts on ?
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Posted By: coggonobrien
Date Posted: 31 Mar 2016 at 11:10am
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I had already completely loosened the tentioner. I hung both belts from the engine pulley with it installed on the engine. Was able to get the front belt on by tipping the engine myself then went underneath the tractor with Dad working the top side and slipped the rear on. Went pretty well with the tensioner loose
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Posted By: BrianC
Date Posted: 06 Apr 2016 at 5:18am
http://www.michaelstractors.com/forum/upload/mikefox/PowerMaxRepairManual.pdf" rel="nofollow - Power Max Manual
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Posted By: coggonobrien
Date Posted: 06 Apr 2016 at 7:07am
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