Yesterday's Tractor Co.
Shop Now View Cart
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Farmall & IHC Tractors Discussion Forum
Show Parts for Model:

replace and tighten fan belt Farmall H

Welcome Guest, Log in or Register
delbert doty

12-15-2005 07:48:29

Report to Moderator

I need to replace the fan belt on the Farmall H and how to tighten it up after, it don"t have a tension device on it, also I need the lenght or p/n of belt.
I have rebuilt the generator, starter,and new battery cables, when I shut off the engine the amp meter showes a -20amp, with the generator belt off the generator runs like an electric motor. Has anyone had this happen and how to fix?
Thanks, Delbert

[Log in to Reply]   [No Email]
Andy Martin

12-15-2005 14:57:10

Report to Moderator
 Re: replace and tighten fan belt Farmall H in reply to delbert doty, 12-15-2005 07:48:29  
Use lots of penetrant if the pulley is stuck.

DO NOT overtighten the belts. Just enough to make things work, otherwise you may damage the water pump bearings. the water pump is greasable (don't use much) and will last a long time if the belts are not too tight.

I have one tractor that's been used every week for twenty years and the water pump is still OK.

[Log in to Reply]  [No Email]
P Backus

12-15-2005 08:31:10

Report to Moderator
 Re: replace and tighten fan belt Farmall H in reply to delbert doty, 12-15-2005 07:48:29  
Actually the H does have a tensioning device, but it"s not what you"d think. The pulley on the fan is threaded. There is a set screw that holds it in place. Loosen that and the front half of the sheeve will unscrew toward the fan, allowing you to get the old belt off, new belt on. Sometimes you have to tap it with a punch on the flat spots on the hub to get it to move. Then tighten it by screwing the sheeves together, making the belt ride higher on the pulley. You never get it really tight like in a car, etc., but that"s okay.
It sounds to me like your regulator is stuck, causing the generator to motor. When the engine is shut down, the contacts in the regulator should open.

[Log in to Reply]  [No Email]

12-15-2005 08:24:54

Report to Moderator
 Re: replace and tighten fan belt Farmall H in reply to delbert doty, 12-15-2005 07:48:29  
You have the generator wired wrong that is why it is running like an electric motor. (I think you have the battery wire connected to the field terminal instead of the BAT but Iím not positive.)

The fan belt is tightened by screwing the front half of the water pump (fan) pulley towards the rear one. This will cause the belt to ride further out on the pulley, tightening the belt. There is a set screw in the front of the pulley that must be loosened first. Then lots of oil and lots of patience are needed because the pulley is cast iron and probably rusted into place. I like to use an air hammer gently on it to try to free it and get the rust worked out of the threads. Others here will use a drift (punch) and hammer to accomplish the same thing.

[Log in to Reply]  [No Email]

12-15-2005 08:20:32

Report to Moderator
 Re: replace and tighten fan belt Farmall H in reply to delbert doty, 12-15-2005 07:48:29  
Well lets start with the belt. On the pulley for the fan you should see slots those slots are part of the way you tighten/loosen the belt. There should also be a set screw and lock nut on that set screw. Loosen the set screw and lock nut and turn the fan hub to loosen the belt and the to tighten you do that just the other way. May take some tapping and a punch to do so. As far as your genny its just telling you that is works. A genny will turn over like a motor if theres no belt on it and on some tactros thats effect is used as a starter also.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums

Copyright © 1997-2016 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters