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Serious Hydraulic leak
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MB 121 View Drop Down
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Joined: 02 Feb 2016
Location: Waggoner Il
Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MB 121 Quote  Post ReplyReply Direct Link To This Post Topic: Serious Hydraulic leak
    Posted: 10 Jun 2020 at 4:48am
I have a serious hydraulic fluid leak all cylinders including loader were lathed re packed and don't leak a drop. Brand new lines. I have degreased the entire tractor it appears the leak is towards transmission selector also had hydraulic control hieght block rebuilt new o rings felt dust seals doesn't leak a drop from it either. It will leak while running or not.
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Gary View Drop Down
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Joined: 13 Sep 2009
Location: Peterborough,On
Points: 5902 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary Quote  Post ReplyReply Direct Link To This Post Posted: 10 Jun 2020 at 5:13am
A little more info would help us help you.

Would assume it is an Allis Tractor you are talking about.

Need to know the Model and year ( or Serial Number ) to begin with.
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MB 121 View Drop Down
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Joined: 02 Feb 2016
Location: Waggoner Il
Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MB 121 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Jun 2020 at 6:27pm
1953 WD45 don't have serial number on me I can look it up
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8646 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jun 2020 at 1:30pm
Did you put the oring between pump and control valve?
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MB 121 View Drop Down
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Joined: 02 Feb 2016
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MB 121 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jun 2020 at 4:53pm
Replaced it when I had control valve rebuilt. Not leaking there it's dry
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21988 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jun 2020 at 6:57pm
"It will leak running or not"...….Leaks what ????   Hydraulic oil??? or transmission/torque tube oil?? You mention transmission selector??   You know a good picture or two would certainly help.
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MB 121 View Drop Down
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Joined: 02 Feb 2016
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MB 121 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jun 2020 at 7:20pm
Hydraulic fluid. The main place I see it dripping off is the PTO housing drain plug already replaced PTO gears housing seals and gaskets. PTO was 90 wieght by I&T shop manual this is hydraulic fluid. Tried uploading photo says to big not sure if I'm doing something wrong there or what.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21988 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jun 2020 at 7:45pm
If you had the hydraulic pump off the tractor, I'll bet you've damaged the gasket reinstalling the pump.
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MB 121 View Drop Down
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Joined: 02 Feb 2016
Location: Waggoner Il
Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MB 121 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jun 2020 at 4:42am
Pump hasn't been off it is strong and runs well mostly everything I've put on it it lifts only thing I found it won't pick up is a large round bale with a spear.
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Bret (OH) View Drop Down
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Joined: 15 Sep 2009
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Points: 353 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bret (OH) Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jun 2020 at 6:09am
See https://www.allischalmers.com/forum/pictures_topic168921.html for instructions on photo posting.
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