This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Allis Chalmers > Farm Equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


7040 oil leak
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
luckydogg View Drop Down
Bronze Level
Bronze Level
Avatar

Joined: 06 Feb 2016
Location: ,south dakota
Points: 12 		Post Options Post Options   Thanks (0) Thanks(0)   Quote luckydogg Quote  Post ReplyReply Direct Link To This Post Topic: 7040 oil leak
    Posted: 27 Dec 2022 at 7:26pm
I have a 7040 PD and had tractor split to replace the input bearing. The shop then advised that the scavenger pump should be removed and convert to the black belly setup. Now when the tractor sets for an extended amount of time or if it is colder out, oil runs out from above the pump upon start up. It never did this before. Everything works, transmission is not overfilled. Took back to AGCO dealer shop and they can not recreate the leak or tell me where it is coming from. Transmission is filled and checked from inside the cab. Any help is greatly appreciated. 

Edited by luckydogg - 27 Dec 2022 at 7:30pm
Back to Top
Sponsored Links


Back to Top
DrAllis View Drop Down
Orange Level Access
Orange Level Access


Joined: 12 Sep 2009
Points: 22307 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 27 Dec 2022 at 8:16pm
"Oil runs out from above the pump upon start-up".....what pump ??? behind the batteries ??
Back to Top
MACK View Drop Down
Orange Level
Orange Level


Joined: 17 Nov 2009
Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 27 Dec 2022 at 8:30pm
Does it continue to leak or for a short time?                     MACK
Back to Top
luckydogg View Drop Down
Bronze Level
Bronze Level
Avatar

Joined: 06 Feb 2016
Location: ,south dakota
Points: 12 		Post Options Post Options   Thanks (0) Thanks(0)   Quote luckydogg Quote  Post ReplyReply Direct Link To This Post Posted: 28 Dec 2022 at 1:10pm
yes it leaks from above the pump that is bolted to the front of the transmission housing. Oil starts  running from above the pump on initial startup only. It doesn't leak long, it pushes oil out at startup then it stops. I think it just leaks for a few  seconds.   I can plant or bale all day and level stays the same.When it sets in a heated shop it will not do it. When I took it back to dealer's shop, I was there at 8:00 am to start it and it would not do it. Did that for three straight mornings. They looked it over and couldn't come up with anything. Took it home and the next morning fired it up and oil was running down the housing again. 
Back to Top
Lynn Marshall View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 13 Sep 2009
Location: Dana, Iowa
Points: 2434 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lynn Marshall Quote  Post ReplyReply Direct Link To This Post Posted: 28 Dec 2022 at 1:26pm
Could be the O rings on the dual pump. They get old and flat over time. More likely though is the 90 degree elbow that screws into the transmission case. It has a jam nut on it to secure the fitting in the proper location. Reach up in there with a 1 inch wrench and see if you can tighten it up.

Edited by Lynn Marshall - 28 Dec 2022 at 1:27pm
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.063 seconds.


Help Support the
Unofficial Allis Forum