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
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts
Salvage

Community
Discussion Forums
Project Journals
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
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
Glossary

Miscellaneous
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
  
Allis Chalmers Discussion Forum
:

5040 hydraulic control valve seals?

Welcome Guest, Log in or Register
Author  [Modern View]
mserges

06-10-2021 18:15:32




Report to Moderator

I recently pulled my hydraulic control valve, cleaned it and reassembled it with a new piston seal. It had some junk in it that was effecting the lift. I have it back on the tractor but the valve in the bottom of the assembly is leaking badly and causing the TPH to gyrate. The drawing shows a seal M2.62 x 17.12. Does this seal go around the plug or inside the assembly to seal the cap to the to the plunger assembly? Is this a standard O ring or a special seal? When I took it apart there was a torn O ring around the plug that did not seem to do much, and I did not find a seal inside the plunger assembly....any help in how to put this back together would be appreciated!

Thanks, Mike

[Log in to Reply]   [No Email]
mserges

06-11-2021 18:09:07




Report to Moderator
 Re: 5040 hydraulic control valve seals? in reply to mserges, 06-10-2021 18:15:32  
When I reassembled the first time I used an O Ring that looked like the correct size and that is where the leak was occurring. I have the correct O Ring from my local dealer, and want to make sure I assemble the drain valve correctly. The diagram does not clearly show if the O Ring goes on the cap and seals against the valve casing or inside the cylinder to seat. Hoping I can figure it out this weekend. Thanks!!

[Log in to Reply]  [No Email]
Jim.ME

06-11-2021 16:11:31




Report to Moderator
 Re: 5040 hydraulic control valve seals? in reply to mserges, 06-10-2021 18:15:32  
Quoting Removed, click Modern View to see

Local AGCO dealer? If they looked up the Allis Chalmers part numbers the first time and gave you parts with those Allis Chalmers numbers, you should have had the right parts. If you went to the dealer and just matched old seals they might not be right in some aspect.



[Log in to Reply]  [No Email]
mserges

06-11-2021 06:58:39




Report to Moderator
 Re: 5040 hydraulic control valve seals? in reply to mserges, 06-10-2021 18:15:32  


Thanks for the reply! I attached a diagram with the parts I am looking for. I did notice the different seal sizes depending on the transmission. Mine is a 6 speed. I had put a seal/O Ring on the cap nut and that is what was leaking. Probably wrong size seal or wrong material? I have watched a few tear down videos and none seem to show an O Ring on the cap nut for this valve so I was wondering if I was just assembling it incorrectly. I am doing this work myself and did buy the seals from a local dealer...I will stop by again and see if they have the correct O Ring, and maybe they can tell me if I am putting it the right location.....Thanks!!

[Log in to Reply]  [No Email]
mserges

06-11-2021 06:58:18




Report to Moderator
 Re: 5040 hydraulic control valve seals? in reply to mserges, 06-10-2021 18:15:32  


Thanks for the reply! I attached a diagram with the parts I am looking for. I did notice the different seal sizes depending on the transmission. Mine is a 6 speed. I had put a seal/O Ring on the cap nut and that is what was leaking. Probably wrong size seal or wrong material? I have watched a few tear down videos and none seem to show an O Ring on the cap nut for this valve so I was wondering if I was just assembling it incorrectly. I am doing this work myself and did buy the seals from a local dealer...I will stop by again and see if they have the correct O Ring, and maybe they can tell me if I am putting it the right location.....Thanks!!

[Log in to Reply]  [No Email]
Jim.ME

06-11-2021 04:07:13




Report to Moderator
 Re: 5040 hydraulic control valve seals? in reply to mserges, 06-10-2021 18:15:32  
Without seeing the seal, plug, and valve body it is hard to say, it seems like it might go over the plug. If it does the shape of the plug and seat area around the port for the plug in the valve body should give a clue.

Did you notice there are two different part numbers for that seal dimension based on the transmission? Your post leads me to believe you aren't using a dealer. Are you using a dealer for the parts or just picking things that fit? I ask as; if some of the seals are O-rings, using O-rings from a generic metric O-ring kit may not be the right ones, even if they fit dimension wise. And trying to match to imperial dimension O-rings can be worse. Durometer and material are factors to be considered and are as critical as the size, especially in something like a valve. Also do you have a service manual for your 5040? It might have some info that will help you through this. JMHO

[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 - Fasteners: The Nuts and Bolts of Nuts and Bolts - by Curtis Von Fange. The nuts and bolts of nuts and bolts is an interesting and essential piece of knowledge that applies to our older tractors. An improperly torqued capscrew on an engine head or a shear bolt that is too hard on the driving shaft of a bushog can create havoc and make an expensive and uncalled for repair. Letís examine the purpose and design of these fasteners in order to ensure their proper use. Fasteners are probably one of the aspects of mechanics that is given the least amount of thought. ... [Read Article]

Latest Ad: wanted MM or Jacobson garden tractors running or parts [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