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
Ford Tractors Discussion Forum

Tw25 fuel screw

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

05-27-2019 08:30:20

Report to Moderator

How far out was the fuel screw set on from the factory and how much can i play with it before i risk damaging it. Its farm used but the tractor is gutless as hell like litterally just falls on its face so i dont know if someones messed with it already or what but it only has 3400 hrs

[Log in to Reply]   [No Email]
mark in boonville ny

05-27-2019 09:31:48

Report to Moderator
 Re: Tw25 fuel screw in reply to mark in boonville ny, 05-27-2019 08:30:20  
How do i check boost pressure and where would the screen be on the bottom tank. Lately it hasnt been sucking from the bottom tank. Also put a new lift pump on it 2 years ago when we bought it. Planned on getting the injectors tested but i havent had time to do so.

[Log in to Reply]  [No Email]

05-27-2019 11:32:46

Report to Moderator
 Re: Tw25 fuel screw in reply to mark in boonville ny, 05-27-2019 09:31:48  
Intake manifold should have an 1/8" NPT pipe plug in it. Screw a 30 PSI gauge in it and work the snot out of it.

The fact that it "hasn't been sucking from the bottom tank" tells me your screen is likely very much plugged. I would start there before bothering to check boost pressure. Screen is at the bottom of the #44 manifold. For some reason it's not listed separately.

[Log in to Reply]  [No Email]

05-27-2019 09:16:57

Report to Moderator
 Re: Tw25 fuel screw in reply to mark in boonville ny, 05-27-2019 08:30:20  
What juniur said. If you can't make at least 15-20PSI of boost at full load, you most likely have a fuel restriction somewhere. Either a plugged screen in the tank (very likely), or maybe a faulty check valve in the lift pump.

There is no set dimension or number of turns for the fuel screw on the pump. That setting is made on a test bench. It is adjusted until the pump flows "x" amount of fuel at a certain RPM for a certain number of strokes. Lacking a test bench, this adjustment is best made with an accurate PTO dyno, which is what I'd suggest your tractor visit if you can't find your fuel restriction.

[Log in to Reply]  [No Email]

05-27-2019 08:43:19

Report to Moderator
 Re: Tw25 fuel screw in reply to mark in boonville ny, 05-27-2019 08:30:20  
I’d check the strainer in the lower tank and be sure you have good flow to the pump before turning the screw. Wouldn’t hurt to check boost pressure either

[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 - Box Plow Blues - by Tom Schwarz. One of the first implements most tractor owners obtain is the box plow. For very little money, this piece of equipment promises to plow and flatten any hill or vale on your ranch road or farm. At least that's what I thought! As simple as a box plow appears, it can be rather challenging to make work correctly. In our sandy soils of Florida, traction is king. You can never have wide enough tires or heavy enough weights to get all the traction you want … unless you own a monster tractor. U ... [Read Article]

Latest Ad: Oliver model 101 1-16 rope trip plow on steel. Includes new share/point and great mouldboard. 300 [More Ads]

Copyright © 1997-2021 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