Oil pouring out from fill plug
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=160907
Printed Date: 17 Dec 2025 at 9:22am
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Topic: Oil pouring out from fill plug
Posted By: Jswiggy08
Subject: Oil pouring out from fill plug
Date Posted: 11 May 2019 at 9:09pm
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Have a WD45 that was restored a few years ago. Was checking fluids the other day, on the left side of the frame. Middle, smaller pipe plug was pulled and fluid poured out of this cap. After reading, I was under the assumption this is the fill cap for the transmission. tractor had ran about 45 minutes prior. Unsure how anybody could overfill this plug. I had a lot of fluid pour out, prolly a quart or more. Any idea on what could cause this?
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Replies:
Posted By: jaybmiller
Date Posted: 11 May 2019 at 9:12pm
a leaking seal from another section of the tractor? Someone with a wd45 will KNOW for sure !
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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Posted By: Jswiggy08
Date Posted: 11 May 2019 at 9:14pm
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I've read that a leaking seal could cause mixing of fluids, but nothing really in depth or about this issue
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Posted By: steve(ill)
Date Posted: 11 May 2019 at 9:14pm
are the other cavities up to the full mark ? Did the tractor set out in the rain and maybe get water inside? ( oil floats on water)
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Like them all, but love the "B"s.
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Posted By: DrAllis
Date Posted: 11 May 2019 at 11:17pm
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Is the hydraulic dipstick low on oil?? There could be a seal on the clutch shaft allowing that to happen. Don't worry too much about that middle cavity being overfull unless it comes out of the gearshift lever. Quit checking it and keep the hydraulics full.
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Posted By: DaveSB
Date Posted: 12 May 2019 at 4:31pm
Clutch shaft seal has gone bad, exact same thing happened to mine, couldn’t keep hydraulics full, and the plug you mentioned was always way over full. Had to split tractor and remove clutch shaft to repair. Those seals are getting hard to find, or at least I had a hard time finding them, other people told me they were still quite common, but nearly everyone I called didn’t have them. Also, there were different combinations of seals due to year model, some had one, some had a double seal, and there may have been one more, don’t remember now, but I
repaired mine and all fluids stay where they should now. Good luck.
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1948 C, 1953 CA, 1948 WD, 1961 D-17 Series 2 Diesel, 1939 WC, 1957 D14
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Posted By: CTuckerNWIL
Date Posted: 12 May 2019 at 6:08pm
If your hydraulic oil is going into the transmission and you don't want to tear it apart right now, connect the 2 drain plugs together with a pipe tee in each plug hole. You still have a way to drain them and the fluid level will somewhat equalize.
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http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com
Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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Posted By: SteveM C/IL
Date Posted: 12 May 2019 at 10:02pm
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If you connect them,put power fluid in all compartments.Hyd and trans. It will be fine for both. I would still tear it down and fix it right. when I did mine many years ago,the original style double seal was NLA. Replaced buy using 2 single seals facing each other. Installation was a little tricky.
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