Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Discussion Forum
:

4020 puzzle followup

Welcome Guest, Log in or Register
Author 
Lloyd Strickla

11-25-2001 13:55:02




Report to Moderator

I wanted to let everyone know the outcome of my problem with my 4020 seizing up. I talked to the oldest mechanic at my dealer shop and he laughed and said, scared you did`nt it. He said it had happened to him several times with tractors on the dyno after rebuild. His explanation was this. New parts had not mated together yet,Possibly one sleeve had a tight tollerance and when brought up to operatating temperture the first time, the piston expanded and tightened up in the bore. In all his cases with a few minutes cooling, they restarted and ran for years. I came home and started mine and let it reach normal temp, then shut it down and let it cool completly. I repeated this one more time, then drove it in a field of soft dirt in progressivly higher gears to increase load. Shut it down and let it cool. The next day hooked up harrow again and pulled in 4~th gear for several rounds. Then went to 5`th gear and plowed for three hours. Never a sign of tightening up again. It sounds great and pulls great. Thanks to everyone who posted a reply to my question. Lloyd

[Log in to Reply]   [No Email]
Lloyd Strickland

11-26-2001 16:35:33




Report to Moderator
 Re: 4020 puzzle followup in reply to Lloyd Strickland, 11-25-2001 13:55:02  
We ran the tractor again today for a couple hours. It had not used any oil in the previous four hours. Still ran great today. This tractor does not see severe duty as I have two 4430`s and a 4630 for that and rent a larger tractor for heavy duty work. As long as the bottom end is OK and no risk to the block, I can run it until a problem developes and then replace the offending sleeve. Thanks to everyone. Lloyd

[Log in to Reply]  [No Email]
WTW

11-26-2001 08:11:29




Report to Moderator
 Re: 4020 puzzle followup in reply to Lloyd Strickland, 11-25-2001 13:55:02  
Lloyd. I too am a past John Deere Dealer technician of 24 years and over the years I have seen three new engines after sleeve and piston replacement go down on the dyno. One of the three I was working on myself and it was a late model 4020. Owner wanted tractor to go to the field and wanted to run it and see what if any thing would show up later. Tractor used excessive amount of oil and was returned to the dealership after field work was done. This engine and the two others that seized on the dyno were tore down, all had one scored piston and liner in one cylinder of each engine. Later there was a service bulletin concerning that some liner to piston clearances got to close at the factory. These engine were all victims within a few months of each other and it happened around 1987. My advice, for what it is worth is watch your oil consumption, If it uses oil you can bet there was damage done. Good Luck Dave W.

[Log in to Reply]  [No Email]
JDJIM

11-25-2001 20:33:28




Report to Moderator
 Re: 4020 puzzle followup in reply to Lloyd Strickland, 11-25-2001 13:55:02  
I gotta agree with Mike if it expanded that much and got that tight something was damaged along the way . I would think somewhere down the line you are looking at a scored piston{s} . That's what happened to me 25-30 yrs ago with my 4020 but back then we were using M&W 5 ring pistons and a turbo on it , the fit was too tight .I'd be plowing along she would pull down almost to a stop and then run fine but use a lot of oil , then when I tore it apart rings would be stuck and one or more pistons would be scored , happened twice in 1100 hrs . That was then but now with the 3 ring pistons the fit is looser and I think they last longer. I would sooner see them too lose than too tight , so it uses a little oil , then you know everything is getting lubricated . I don't mean to spoil your spirits but that's how it was with me , hope yours runs forever. JIM

[Log in to Reply]  [No Email]
mike

11-25-2001 14:07:57




Report to Moderator
 Re: 4020 puzzle followup in reply to Lloyd Strickland, 11-25-2001 13:55:02  
I've worked on the 4020 series tractors for
over 30 years and have never seen this.For
anything to seize takes something dry and hot,
both which cause problems cooling down won't
fix.It may run good for a while,but not for long.



[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


Copyright © 1997-2023 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