Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   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
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
Kountry Life
Allis Chalmers Discussion Forum

Strange G carburetor behavior

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

07-11-2014 17:40:08

Report to Moderator

When I go up even a slight grade with my G running on the road in 3rd gear, the engine tends to load up, gives some black smoke and misses a little. It's OK on the level. I tried closing the idle screw 1/4 turn and it got worse. Opening a 1/4 turn seemed to help some. I was all through the carburetor last fall, soaked it out, set the float to spec, cleaned all passages, etc. Ideas?

[Log in to Reply]   [No Email]
Dick L

07-12-2014 04:00:04

Report to Moderator
 Re: Strange G carburetor behavior in reply to leon, 07-11-2014 17:40:08  
The idle screw is adjusted for slow idle only. The idle circuit is not in play once you speed up the RPM's above slow idle and you get fuel thru the power jet.

Adjust the carburetor to the slow idle engine speed and then see how it works.

The slow idle is set with the stop screw and the idle mixture screw is to get the proper air fuel mix to make the engine run smooth at that slow RPM setting. Power jet is non adjustable.

Might be a firing order problem. This engine will run on the 1 2 4 3 order but not well. The G firing order is 1 3 4 2

[Log in to Reply]  [No Email]

07-14-2014 16:11:45

Report to Moderator
 Re: Strange G carburetor behavior in reply to Dick L, 07-12-2014 04:00:04  
I double checked. That's not the problem. Wires and firing order are right.

[Log in to Reply]  [No Email]
Dick L

07-15-2014 04:30:55

Report to Moderator
 Re: Strange G carburetor behavior in reply to leon, 07-14-2014 16:11:45  
Back to fuel delivery. Start checking at the tank, sediment bowl and the carburetor. If you have proper fuel at the carburetor your problem would have to be in the carburetor. Take the power jet out and make sure it is the proper one and has the gasket on it. Then set the slow idle rpm speed and see what you have. The fuel has to go thru that jet to get into the engine when above idle. To get around going thru the jet you would have to have fuel over flowing into the air way where the choke butterfly. To check for that remove the air cleaner tube from the carburetor. If you have fuel coming from there when running you have a shut off problem from float or the wire doohickey attached to the float shutoff is binding and not letting it to close.

[Log in to Reply]  [No Email]
Joe Blackeby

07-11-2014 18:43:49

Report to Moderator
 Re: Strange G carburetor behavior in reply to leon, 07-11-2014 17:40:08  
Howdy, Sounds like float level....

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

Hop to:

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums

Today's Featured Article - Major Problems - by Anthony West. Following the aquisition of the two Fordsons to my collection I found that I was struggling to move them about. I had considered the possibility of driving the "F" to and from shows but anything other than local rallies was totaly impractical due to its sedate pace. I had also considered buying a landrover and trailer, but the price of a ... [Read Article]

Latest Ad: 3 point drag arm for 420 HD crawler right side [More Ads]

Copyright © 1997-2020 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

Website Accessibility Policy