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Farmall & IHC Tractors Discussion Forum
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Farmall H fan belt tension

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kippster

05-21-2008 11:10:24




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Hey guys! I know a fair amount about my 1948 farmall H but I'll be the first one to admit that I surely don't know it all. How do you adjustthe tension on the fan belt? I know how to rebuild the dang tranny, replace the clutch and rebuild the belly pump, but I never even thought about the fan belt until I noticed that it was loose!! ha ha!! go ahead and laugh, but beter to ask then to have to rebuild the engine too!!

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Janicholson

05-21-2008 16:14:28




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 Re: Farmall H fan belt tension in reply to kippster, 05-21-2008 11:10:24  
I'll add to Rootsy's correct info, that the belt does not, and should not be very tight. If you can push it an inch with your thumb, it is A-OK. Too tight, and things (waterpump) wear out. It is a loose still does not slip kinda thing. JimN



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Rootsy

05-21-2008 11:24:36




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 Re: Farmall H fan belt tension in reply to kippster, 05-21-2008 11:10:24  
In the forward half of the water pump pulley there is a bolt. Originally took a regular screwdriver to loosen. loosen thoroughly or remove (it has to clear the square keyway cut in the threaded pulley hub. If you are lucky the forward part forming the pulley will thread in and out on the pulley hub to loosen or tighten the belt. If you are not lucky you'll have to use some PB, WD40, etc and clean some threads and possibly break out a big punch and hammer to get her moving... turn it in (toward engine) to tighten the belt, this decreases the V between the two halves, until you have desired tension. Line that threaded hole back up with that square slot and reinsert the bolt you removed.. While you are at it, give the grease zerk a shot or two of grease...

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