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
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
Discussion Forum

Hotter \ colder plug?

Welcome Guest, Log in or Register

03-18-2003 18:12:36

Report to Moderator

I have had a wd -45 for several years, and I am constantly haveing to replace the spark plugs. I have tried several different brands some work better than others but none last more than a summer. I have naturally checked (and replaced) the other ignition components. When doing all this diagnostic work I have found that the heads have apperantly been shaved by a previous owener all cylinders have 180 psi compression +\- 3 psi. I have allways replaced the plugs with original heat range of plugs, could this be my problem? Do I need a plug in a different heat range?

Thanks for any replys

[Log in to Reply]   [No Email]
Doug in OR

03-23-2003 19:09:00

Report to Moderator
 Re: hotter \ colder plug? in reply to RG, 03-18-2003 18:12:36  
Tell us more of what the plugs look like. If the plugs are just wearing out, changing the heat range won't help you. In this case, go to platinum plugs. If the plugs are getting carboned up or fouling, then switch to a hotter plug. If there is "blistering" on the insulator, then try a cooler plug. If your plug is too hot, you might also notice detonation, but that's not always a sure-thing.

One note of caution - cross referenced plugs may or may not be of the same heat range. This is an issue with many older tractors where the original plug number they specify is no longer available.

[Log in to Reply]  [No Email]
Phil Auten (TX)

03-19-2003 10:27:06

Report to Moderator
 Re: hotter \ colder plug? in reply to RG, 03-18-2003 18:12:36  
I am using Autolites in my A-C B and RC because they are specifically recommended for mag ignited engines. Currently, Autolite 295 plugs seem to be working the best in these two. Neither tractor sees any heavy work, so this should work fine in most tractors. If your tractor smokes a bit from worn engine parts, you might ask the parts man for plugs that are a heat range or two hotter, if available. This should help prevent fouling from oil deposits. If the carb is adjusted properly, the 295's should be fine. If these foul from excess fuel, try leaning out the idle and/or high speed mixture to stop the fouling.


[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

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