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
Minneapolis Moline Tractors Discussion Forum
Show Parts for Model:


[Show Entire Topic]  

Welcome Guest, Log in or Register
Author  [Modern View]

02-12-2013 18:41:40

Report to Moderator

It doesn't happen every time--when it does REV up I have tried moving those rods with no affect.

[Log in to Reply]   [No Email]

02-12-2013 19:38:37

Report to Moderator
 Re: ZBU QUESTION in reply to lenray, 02-12-2013 18:41:40  
If you can't control the engine speed by pulling the governor rod that runs from the governor to the carburetor down, then its either:

-sticking in its pivots,-That rod has to move freely, it closes the throttle pretty much by gravity alone.

-rod is too long. (I haven't seen this on a ZB, but have seen it on a U and the governors are similar.-probably due to wear inside the governor.)

-the idle speed screw on the throttle shaft-NOT the mixture screw- is screwed too far in and keeping the carburetor from idling.

-its getting extra air from somewhere else besides the intake, like a worn throttle shaft.

-something worn, or sticking in the governor itself. I have seen a couple that had so much end play in the governor shaft that they could not control the carburetor properly. Also, the pins in the flyweights and the block they push against can wear out.

[Log in to Reply]  [No Email]

02-13-2013 17:24:32

Report to Moderator
 Re: ZBU QUESTION in reply to t.r.k., 02-12-2013 19:38:37  
Thanks for the great info. fellas---some things to look at----much appreciated.

[Log in to Reply]  [No Email]
[Show Entire Topic]     [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