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over fill gear lube

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jarhead_70
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Zip Code: 57790
Tractors Owned: 1947 international cub
Location: WALL SOUTH DAKOTA

over fill gear lube

Postby jarhead_70 » Tue Jan 12, 2016 12:45 am

Iam restoring 1947 ih cub Had everything torn down and thought
I put everything back together right, refilled transmission with 3 1/2 pints
of gear lube was going to refill both rear axle drive housing noticed
they already had some in both of them. did some gear lube bleed into
the rear axle drives from the transmission fill or did I leave a seal out somewhere.
thank for any help
dave
Started to restore my grandfather,s 1947 cub sure looks like a lot of work but it will
be fun to redo something that,s been in the family.

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Bill V in Md
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LT1045 Cub Cadet
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Re: over fill gear lube

Postby Bill V in Md » Tue Jan 12, 2016 1:02 am

Each of the rear axle housing pans are supposed to have 2 pints.
Bill VanHooser
Cub 54 Blade, Cub 193 Moldboard Plow, Cub 28A Disc Harrow
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Glen
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Re: over fill gear lube

Postby Glen » Tue Jan 12, 2016 1:57 am

Hi,
The transmission and final drive units are 3 separate units with 3 separate oil levels to check. You have to take the oil pans off the final drive units, and drain the oil out of them, clean them, and put them back on, and fill the units with oil. The filler and level plug is the same plug on the final drive units, they are just above the pans on the side facing in, between the 5/8 inch implement bolt holes. Below is a pic from TM Tractor showing the plug, it is on the left side of the casting, between the bolt holes.
There are oil seals that could leak, but the oil would soak the brakes and run out under the brakes if they were leaking for long. :)
Attachments
Cub Final drive.jpg

jarhead_70
10+ Years
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Posts: 7
Joined: Fri Jul 18, 2008 11:11 pm
Zip Code: 57790
Tractors Owned: 1947 international cub
Location: WALL SOUTH DAKOTA

Re: over fill gear lube

Postby jarhead_70 » Tue Jan 12, 2016 2:19 pm

Glen wrote:Hi,
The transmission and final drive units are 3 separate units with 3 separate oil levels to check. You have to take the oil pans off the final drive units, and drain the oil out of them, clean them, and put them back on, and fill the units with oil. The filler and level plug is the same plug on the final drive units, they are just above the pans on the side facing in, between the 5/8 inch implement bolt holes. Below is a pic from TM Tractor showing the plug, it is on the left side of the casting, between the bolt holes.
There are oil seals that could leak, but the oil would soak the brakes and run out under the brakes if they were leaking for long. :)

Thank glen for your info.But is there any way by adding gearlube to the transmission that it will leak into the the final drives
Started to restore my grandfather,s 1947 cub sure looks like a lot of work but it will
be fun to redo something that,s been in the family.

Jim Becker
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Re: over fill gear lube

Postby Jim Becker » Tue Jan 12, 2016 2:33 pm

jarhead_70 wrote:. . . is there any way by adding gearlube to the transmission that it will leak into the the final drives

To do so it would have to leak out of the seal in the transmission housing, sneak it's way past the brake drum, then leak in past the seal in the final drive housing. Maybe it could do it if the tractor was on it's side. In a practical sense, think it is safe to say no way.

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Glen
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Location: Wa.

Re: over fill gear lube

Postby Glen » Tue Jan 12, 2016 10:50 pm

Hi,
Sorry you didn't understand what I meant above. I agree with Jim, the oil can't get from the transmission into the final drives. It would run out the trans seals, and run out under the brakes, through the small drain hole under the brakes. It also gets on the brakes eventually too.
Then there is another seal on the brake shaft, to keep the oil in the final drive. :)

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John *.?-!.* cub owner
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Re: over fill gear lube

Postby John *.?-!.* cub owner » Wed Jan 13, 2016 9:54 am

Glen wrote:Hi,
...... It would run out the trans seals, and run out under the brakes, through the small drain hole under the brakes........
That is the way it is supposed to work, but on tractors that are used for mowing that hole frequently gets plugged, especially if you mow some dry or tall grass. Unloading a tractor with oiled brakes can get your attention if you are not prepared for it, and have it already in gear.
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1974 Horse II 12 v c-2
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Re: over fill gear lube

Postby inairam » Wed Jan 13, 2016 6:35 pm

According the Bigdog there is a path from the Trans to the final drive http://www.farmallcub.com/phpBB2/viewto ... =1&t=49290
When you only have 9 horsepower you need to know the names of all of the ponies!

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Re: over fill gear lube

Postby Jim Becker » Wed Jan 13, 2016 6:56 pm

inairam wrote:According the Bigdog there is a path from the Trans to the final drive viewtopic.php?f=1&t=49290

I don't see where he says that.

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Glen
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Re: over fill gear lube

Postby Glen » Wed Jan 13, 2016 7:11 pm

Hi,
That's true John, the little hole on the bottom of the casting can get plugged with dirt, grease, or grass. I would think the next place the oil would run out would be the 2 larger holes, in front and to the rear of the brake drum, the front hole is the one the brake rod goes into the housing at.
inairam, I read Bigdog's posts there, I don't see that he is saying that the oil can get into the final drive casting if it runs out of the trans seals. He just says the trans can leak if the oil level is too high, he doesn't really say where the oil would go.
On all of them I have repaired with wornout leaking seals, the trans oil ran out the holes I mentioned above. :)

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Barnyard
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Re: over fill gear lube

Postby Barnyard » Wed Jan 13, 2016 8:37 pm

Jim Becker wrote:
inairam wrote:According the Bigdog there is a path from the Trans to the final drive viewtopic.php?f=1&t=49290

I don't see where he says that.

I looked too and don''t see where he says that either.
There are two ways to get enough Cubs. One is to continue to accumulate more and more. The other is to desire less.

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inairam
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Posts: 2803
Joined: Wed Jul 08, 2015 10:24 am
Zip Code: 19342
Tractors Owned: 1948 6v - Dozer
1949 with kub klipper belly mower. mag 6v - Mom
1950 with plow, 54 blade, mott mag 6v - Roxanne
1953 54 blade, c22, wood 42 6v
1957 6v - barn Queen
1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
1975 with woods 42-6 12 v - Horse
1979 long strip 12 v stuck engine
130 with international 1000 loader 6 v
1969 140 with bush hog tow behind mower 12 v
Terramite T-6 4WD Backhoe Perkins diesel
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Re: over fill gear lube

Postby inairam » Thu Jan 14, 2016 9:34 am

Re: Replacing right rear drive axle seals?
Postby Bigdog » Tue Feb 09, 2010 8:45 pm

Before you change the seal drain and refill the transmission and also check the level in the final drive by removing the large plug with the square hole just above the pan. If the transmission is full of water and oil mix or overfilled with gear lube it can leak out the seal on the tranny case. The seals were designed to protect against splash lube and not submersion. If you still have leaking after the levels are correct you will need to replace the seals. The TC 37 parts catalog gives a pretty good view of how everything fits together.
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.
When you only have 9 horsepower you need to know the names of all of the ponies!

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Barnyard
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Re: over fill gear lube

Postby Barnyard » Thu Jan 14, 2016 10:19 am

He is saying gear lube can leak out the seal on the tranny case. No where does he say it can run into the finals

If the trans is overfull it will run out the axle tube. Many people think they have bad seals when they see that.
There are two ways to get enough Cubs. One is to continue to accumulate more and more. The other is to desire less.

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inairam
5+ Years
5+ Years
Posts: 2803
Joined: Wed Jul 08, 2015 10:24 am
Zip Code: 19342
Tractors Owned: 1948 6v - Dozer
1949 with kub klipper belly mower. mag 6v - Mom
1950 with plow, 54 blade, mott mag 6v - Roxanne
1953 54 blade, c22, wood 42 6v
1957 6v - barn Queen
1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
1975 with woods 42-6 12 v - Horse
1979 long strip 12 v stuck engine
130 with international 1000 loader 6 v
1969 140 with bush hog tow behind mower 12 v
Terramite T-6 4WD Backhoe Perkins diesel
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Re: over fill gear lube

Postby inairam » Thu Jan 14, 2016 10:28 am

The thread was about "Replacing right rear drive axle seals" and his advise was to check the fluid level in the trans prior to replacing the seal. I assumed he meant there was a way for the fluid to get from the trans to the final drive. I have the same leak on my 48 and was researching a fix. With your comments and a reread I think he is talking about two problems: over filled tran and over filled final drive. Thanks
When you only have 9 horsepower you need to know the names of all of the ponies!

Jim Becker
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Re: over fill gear lube

Postby Jim Becker » Thu Jan 14, 2016 2:41 pm

He advised checking both places because a leak from either place will leak oil onto the tire, which was the stated symptom. The intent was to head off the poster from replacing the axle seal until he confirmed the actual source of the leaked oil.


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