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coggonobrien 
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Joined: 14 Nov 2010
Location: Eastern Iowa
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 Topic: 616/620/720 engine belt install
Posted: 18 Mar 2016 at 7:51am |
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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Steve in NJ
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Joined: 12 Sep 2009
Location: Andover, NJ
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Posted: 18 Mar 2016 at 8:49am |
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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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mnoonan-NEWI
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Joined: 11 Sep 2009
Location: Marinette, WI
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Posted: 18 Mar 2016 at 11:33am |
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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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coggonobrien
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Posted: 18 Mar 2016 at 11:39am |
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what do you mean by drive shaft disconnected.
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mnoonan-NEWI
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Posted: 18 Mar 2016 at 11:51am |
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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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coggonobrien
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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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den/southern illinoi
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Posted: 18 Mar 2016 at 4:55pm |
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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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Tracy Martin TN
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Posted: 18 Mar 2016 at 6:24pm |
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The fiber disc is for misalignment. HTH Tracy
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No greater gift than healthy grandkids!
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coggonobrien
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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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HudCo
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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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ac720nut
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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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coggonobrien
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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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BrianC
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Posted: 06 Apr 2016 at 5:18am |
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coggonobrien
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Posted: 06 Apr 2016 at 7:07am |
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Thanks Brian
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