Oil dripping from inspection hole

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farmalllove
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Tractors Owned: 1952 Farmall cub with international plow, cultivators, and mower.

Oil dripping from inspection hole

Postby farmalllove » Thu May 16, 2019 3:44 pm

I was mowing the yard today and noticed some oil was dripping out of the inspection hole. I cant figure that it is coming from the block because the angle that the tractor would have to be at to let it run to the hole. The oil is dark too. I put new engine oil in 2 months ago. At the same time I changed the transmission and final drive fluids. The transmission was flushed with diesel 3 times so it is clean too. My only guess is that it came from the transmission seal and got junk in it as it rolled down the torque tube. I reached inside the bell housing and pulled a nut out of the bottom of it. I cant figure out where it came from either. The clutch has all the jam nuts on the adjustment screws. It has a new clutch in it but I have the nuts for the old clutch too. Thanks in advance.
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Rick Spivey
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Re: Oil dripping from inspection hole

Postby Rick Spivey » Thu May 16, 2019 5:14 pm

If you overfill the transmission oil will leak past the front seal, and then drip from the inspection hole if the cub assumes a downhill angle. Otherwise it could be from the rear main seal of the engine, those that leak get worse as the oil heats up and thins out. To be sure you could try and park the cub downhill to see if more oil drips out, and/or confirm the level in the transmission. There is a plug on the inside (under the seat platform) that controls the level, remove it on level ground and drain off any excess. The drain plug is on the bottom, this plug is up higher on the side of the transmission housing.
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Glen
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Re: Oil dripping from inspection hole

Postby Glen » Thu May 16, 2019 8:16 pm

Hi,
Rick, I think you might have written the wrong thing above.

The transmission drain plug is at the bottom of the trans, visible from under the platform.

The trans oil level plug is a small plug, low on the left side of the trans.

Below is a pic from TM Tractor of the bottom of the clutch housing. There is a small drain hole at the left side of the pic, under the flywheel area, oil from a leaking rear engine seal would drip out there, if the hole is open. Use a screwdriver or something and see if the hole is open. :)
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Cub clutch housing 5.jpg

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Rick Spivey
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Re: Oil dripping from inspection hole

Postby Rick Spivey » Fri May 17, 2019 6:56 am

Glen is correct. The level plug is on the left side of the transmission housing, as viewed from the operator seat. It had been a few years since I took one out (which tells you my cubs are overdue for a transmission oil change). I remembered that it wasn't super easy to get to, but at my age, nothing that's not on top is easy to get to. It's surprisingly low on the housing, as these transmissions don't require a whole lot of oil to run properly, and making it easy to overfill if ou are just going "by eye" at the fill hole.
Rick Spivey
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)

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farmalllove
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Tractors Owned: 1952 Farmall cub with international plow, cultivators, and mower.

Re: Oil dripping from inspection hole

Postby farmalllove » Sat May 18, 2019 12:17 pm

Ill check that today. would the leak arise now even after months of not dripping?
Successful people don't have fewer problems. They have determined that nothing will stop them from going forward.
-Benjamin Carson-

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Glen
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Re: Oil dripping from inspection hole

Postby Glen » Sat May 18, 2019 4:48 pm

Hi,
An oil seal can begin leaking at any time.
You could see if the color of the oil dripping, matches the engine oil on the dipstick.

If you don't notice anything missing, the extra nut you found in the clutch housing could have been left there by someone in the past.
I think the 3 nuts on the pressure plate are the only nuts in there. :)

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Re: Oil dripping from inspection hole

Postby Cubfriend » Fri May 24, 2019 9:17 am

Edited because of duplicate post.
Last edited by Cubfriend on Fri May 24, 2019 9:48 am, edited 1 time in total.
Frank

Cubfriend
5+ Years
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Posts: 591
Joined: Sat Jan 28, 2012 3:13 pm
Zip Code: 68803
Tractors Owned: 1948 Cub, Kittie; 1948 Cub, Harold; 1949 Cub, 49er; 1951 Cub, Tucker; 1951 Cub, Homely; 1956 Cub High Crop; 1957 Cub Loboy; 57 Cub Loboy w/fasthitch + 194 plow; 1958 Cub LoBoy w/FH, Popeye; 1961 Cub, Beater; #1-1962 Cub Loboy Dually (Originally Orange) w/Foot Throttle; #2-1962 Cub Loboy Dually (Originally Orange) w/Foot throttle; Yellow 1963 Cub Loboy and blade; 1970 Cub, Cubbie; and 5 other Cubs in various stages of disaasembly and disrepair; 1962 Cub Cadet Original; 2 other Cub Cadet Originals; Cub Cadet 100; Cub Cadet 124 w/Creeper; Cub Cadet 147; 2 Cub Cadet 129's; Cub Cadet 149; 1948 Allis Chalmers C w/single frontwheel; 1944 Formal H w/Tokhiem Cab; 2 One Point Fasthitch Carriers; #100 Fasthitch Rear Blade; 2 Sets Cub 144 Cultivators; 2 Sets Cub 252 Cultivators; 3 Cub 193 Mouldboard Plows; 1 Cub 193 Slatted Plow; 1 1948 Cub-54 Snow Plow; 3 Cub-54 49-5 Snow Plows; Cub #6 Tool Bar w/Disc Blades & Middlebuster.
Circle of Safety: Y
Location: Grand Island, Nebraska

Re: Oil dripping from inspection hole

Postby Cubfriend » Fri May 24, 2019 9:31 am

Isn’t there a nut on the throughout bearing hanger to bolt the two halves together? 1/4 x 28NF according to the parts manual TC-37F.
Frank

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Glen
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Posts: 3278
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Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
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Location: Wa.

Re: Oil dripping from inspection hole

Postby Glen » Fri May 24, 2019 8:30 pm

Hi,
Yes, there is a nut on the bolt holding the throwout bearing holder together. :)


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