Welcome! Please use the navigational links to explore our website.
Company Logo (800) 853-2651 Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Discussion Forum
:

WD 45 compression

Welcome Guest, Log in or Register
Author 
waffle

11-17-1999 10:08:45




Report to Moderator

I have just done a compression test on a unrestored WD45. The compression is about 95lbs on each of the four cylinders. The tractor seems to not have the same power that it use to have and it leaks alot of oil. Otherwise it is in very good condition. What is the proper compression on this tractor, and if I need a rebuld kit who makes a good one?




[Log in to Reply]   [No Email]
Phil Auten

11-17-1999 11:58:19




Report to Moderator
 Re: WD 45 compression in reply to waffle, 11-17-1999 10:08:45  
95 PSI is a little low, probably should be a bit closer to 100-105 PSI per cylinder. Try squirting about 2 Tablespoons of oil in each cylinder and repeat the test. If the pressure rises more than 5 PSI suspect rings. If the pressure doesen't change suspect valves. You may only need to have a valve job done to restore the lost power.

Good luck,
Phil



[Log in to Reply]  [No Email]
Aaron

11-17-1999 11:24:33




Report to Moderator
 Re: WD 45 compression in reply to waffle, 11-17-1999 10:08:45  
I'm not sure of the right compression numbers, but for a kit, you are hard pressed to beat the AGCO kit. I got one for my WC and while I don't have it together yet, if somethign is wrong in the kit, good luck getting a mail order palce to help. Dealers have shops that can and will offer free advice, especially if you buy over their counter.
Aaron



[Log in to Reply]  [No Email]
Brian G

11-18-1999 06:55:51




Report to Moderator
 Re: Re: WD 45 compression in reply to Aaron, 11-17-1999 11:24:33  
Some engine mfgs. say the difference between the readings on the lowest and highest cylinders should not be more than 10%, others say the difference should be no more than 10-15 lbs. Most of the A-C tractor manuals don't list the Compression pressure, The WD-45 Manual states: "Compression Pressure: 125# @ 500 RPM". Follow Phil's advice for determining if the problem is valves or rings. I would guess the rings are worn since all cylinders read uniformly low. Brian G.

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

Hop to:


TRACTOR PARTS TRACTOR MANUALS
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 - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga ... [Read Article]

Latest Ad: Looking for 730 fuel,tank hood, carb, intake and other associated pipes, and entire dash pedestal with shaft and steering wheel(rebuildable carb) [More Ads]

Copyright © 1997-2022 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