Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

4020 hydraulic fluid overflow leak


 
Post new topic    
View previous topic :: View next topic  
Author Message
Jberg6
New User


Joined: 04 Jan 2013
Posts: 8


Report to Moderator

PostPosted: Sun Jan 20, 2013 7:46 am    Post subject: 4020 hydraulic fluid overflow leak Reply to specific post Reply with quote

My 66 4020 pwr shift diesel has a line under the power steering pump in the dash that leaks. I believe its an overflow line that is only supposed to have around 15 psi pressure at the most, but when I start it, it will blow the rubber line, which is cappable of 150 psi. The old line was metal, but deere sells a rebuild kit with two metal fittings and a rubber line.please help
 
Back to top
View user's profile
DONMYEIL
Long Time User


Joined: 14 Oct 2004
Posts: 971


Report to Moderator

PostPosted: Sun Jan 20, 2013 8:29 am    Post subject: Re: 4020 hydraulic fluid overflow leak Reply to specific post Reply with quote

I replace them with a brake line that I bend and double flair useing the original ends. Is this line on top of the steering valve or running down the front to the side. Down the side would be a break line not the leak off.
 
Back to top
View user's profile
tomstractorsandtoys1
Long Time User


Joined: 07 Apr 2011
Posts: 898


Report to Moderator

PostPosted: Sun Jan 20, 2013 6:08 pm    Post subject: Re: 4020 hydraulic fluid overflow leak Reply to specific post Reply with quote

Are you using the Deere hose? It is special with a higher psi rating than fuel line hose.I tried fuel line hose and it lasted about five months, the special Deere hose has been on over a year now.
 
Back to top
View user's profile
Bob
Tractor Guru


Joined: 03 Jan 1998
Posts: 41344


Report to Moderator

PostPosted: Sun Jan 20, 2013 7:26 pm    Post subject: Re: 4020 hydraulic fluid overflow leak Reply to specific post Reply with quote

Something is probably plugged or a line is squashed between there and where that circuit dumps into the RH side of the transmission housing.
 
Back to top
View user's profile
Jberg6
New User


Joined: 04 Jan 2013
Posts: 8


Report to Moderator

PostPosted: Mon Jan 21, 2013 6:02 pm    Post subject: Re: 4020 hydraulic fluid overflow leak Reply to specific post Reply with quote

Yes its a hose from deere. I believe the line does go to the brakes...why would it have that much pressure
 
Back to top
View user's profile
tim s
Tractor Guru


Joined: 01 Nov 2008
Posts: 7232
Location: Somerset Ohio

Report to Moderator

PostPosted: Mon Jan 21, 2013 6:57 pm    Post subject: Re: 4020 hydraulic fluid overflow leak Reply to specific post Reply with quote

The plastic line on the back side of the steer valve comes from the pressure control valve, it acts as a dump so that the control valve can move, with out it it creates a hydraulic lock, it dumps into the steer valve housing and then on through the return fitting at the lower left of the base. you could cap it at the steer valve and run it down and tee it into the seal drain return line at the top right of the transmission, or go with a steel line..I only mentioned the "re-route" because there is not much room behind the steer valve..
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> John Deere All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

Powered by phpBB © 2001, 2005 phpBB Group

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