This site uses cookies to maintain login information on FarmallCub.Com. Click the X in the banner upper right corner to close this notice. For more information on our privacy policy, visit this link:
Privacy Policy

NEW REGISTERED MEMBERS: Be sure to check your SPAM/JUNK folders for the activation email.

Transmission input seal

The Cub Club -- Questions and answers to all of your Cub related issues.
Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
Matt Kirsch
10+ Years
10+ Years
Posts: 4945
Joined: Tue Jun 08, 2004 3:04 pm
Zip Code: 14559
Circle of Safety: Y
Location: Rochester, NY

Transmission input seal

Postby Matt Kirsch » Tue Nov 27, 2012 11:09 am

If the transmission is filled with the proper amount of gear lube, will any come out past the transmission input seal under normal circumstances, even if the seal is no good?

When we loaded the '53 on my trailer to bring it home, we thought we struck oil by the amount that came out the torque tube. Definitely gear lube, by the smell. After I had it split, I shined a light down in there and you can see where oil has been running out the seal, and the puddle in the torque tube.

This is mostly a thought exercise because the hood is off, and replacing the transmission input shaft seal is one of those "may as wells."

SPONSOR AD

Sponsor



Sponsor
 

Eugene
Team Cub Mentor
Team Cub Mentor
Posts: 20336
Joined: Fri Jul 02, 2004 9:52 pm
Zip Code: 65051
Circle of Safety: Y
Location: Mo. Linn

Re: Transmission input seal

Postby Eugene » Tue Nov 27, 2012 11:22 am

Before I replaced the original transmission seal, gear lub would drain/leak out the front of the torque tube when I got the Cub's nose sharply down. I use the Cub many years with the front seal leaking because it didn't appear that I was loosing enough gear lub to bother with.
I have an excuse. CRS.

User avatar
tractordad
10+ Years
10+ Years
Posts: 1475
Joined: Sat Sep 12, 2009 1:36 pm
Zip Code: 01516
Tractors Owned: 48 Cub w/ IH C2 mower
50 High wide "demo" cub with dual fertilizer hoppers
51 high wide cub w/474 planter
62 High wide cub w/ fast hitch
72 High wide w/cultivators
75 Red Long stripe w/fast hitch & C2 mower
76 Red long stripe w/IH 1000 loader & duals
77 long stripe with IH C2 belly mower
55 Super AV w/cultivators
56 Super AV
57 130 High crop w/cultivators
1 IH 574 w IH 2250
quick hitch loader
Circle of Safety: Y
Location: Douglas, MA

Re: Transmission input seal

Postby tractordad » Tue Nov 27, 2012 11:25 am

Matt,

I would suspect that the seal is there to do just that, retain the fluid in the tranny. Just be careful running the new seal down the input shaft. If you do not clean the shaft well, you'll destroy the seal lip by the time it makes it to the proper position. Gary

Matt Kirsch
10+ Years
10+ Years
Posts: 4945
Joined: Tue Jun 08, 2004 3:04 pm
Zip Code: 14559
Circle of Safety: Y
Location: Rochester, NY

Re: Transmission input seal

Postby Matt Kirsch » Tue Nov 27, 2012 11:36 am

LOL, I agree with you Gary, just wondering how important it really is.

The level check plug for the transmission is way low on the casting, and the input shaft is nearly at the top. Unless you're really going down a steep hill, I can't see how that much oil can escape.

Jim Becker
Team Cub
Team Cub
Posts: 17214
Joined: Sun Feb 02, 2003 2:59 pm
Zip Code: 55319
Circle of Safety: Y
Location: MN

Re: Transmission input seal

Postby Jim Becker » Tue Nov 27, 2012 12:00 pm

As long as there is oil enough for at least one of the lower gears to run in it, oil will be slung into the oil distribution trough. From there, it is distributed to an oil hole that leads between the front bearing and the seal. If the seal is bad, oil will go past it.

User avatar
Boss Hog
Cub Pro
Cub Pro
Posts: 10290
Joined: Mon Oct 24, 2005 8:35 pm
Zip Code: 23962
eBay ID: dmb2613
Circle of Safety: Y
Location: VA. Randolph

Re: Transmission input seal

Postby Boss Hog » Tue Nov 27, 2012 12:14 pm

If you do put a seal in it I have a slick way of putting a seal in the old retainer , as they fit like the rear seals do a bit loose
Boss
IN GOD WE TRUST
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg

User avatar
Hengy
10+ Years
10+ Years
Posts: 7150
Joined: Sat Feb 18, 2006 8:12 pm
Zip Code: 15101
eBay ID: lacrosseorgans
Skype Name: Mike.Hengelsberg
Tractors Owned: 1949 Cub "Merlin"
1955 Cub "Lewis"
Cub Trailer
A-60 Blade
Cub-22 Mower
193 Plow
Circle of Safety: Y
Location: PA, Allison Park (Am Hengelsberg)
Contact:

Re: Transmission input seal

Postby Hengy » Tue Nov 27, 2012 3:45 pm

I'm interested to see what you do with it, Boss. I am going to have to do Lewis' tranny soon, and I was hoping to use the NAPA seal...
Mike (Happy as a Lark in Allison Park, PA)
Image Image

Check out my Restoration Thread (1955 Cub, Lewis)

User avatar
Dale Finch
10+ Years
10+ Years
Posts: 6634
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Transmission input seal

Postby Dale Finch » Tue Nov 27, 2012 9:38 pm

I am also very interested, since I am planning to finally do mine this January when we have our "mini-fest" here! Please, fill us in, Boss!!
Dale Finch
Image
Circle of Safety

User avatar
Yogie
Cub Pro
Cub Pro
Posts: 5237
Joined: Sat Sep 08, 2007 3:49 pm
Zip Code: 25271
eBay ID: yogiefisher
Tractors Owned: 37 John Deere A
63 Farmall Cub
53 Farmall Cub
56 Farmall Cub
IH 140
Massey 165 & 250
Circle of Safety: Y
Location: WV. Ripley

Re: Transmission input seal

Postby Yogie » Tue Nov 27, 2012 11:16 pm

Jim Becker wrote:As long as there is oil enough for at least one of the lower gears to run in it, oil will be slung into the oil distribution trough. From there, it is distributed to an oil hole that leads between the front bearing and the seal. If the seal is bad, oil will go past it.

I agree, oil is running into this area all the time the tractor is moving to keep that front bearing lubed.
There's a small cut out on the seal retainer that allows excess to run back in the trans and away from the seal but even with that helping it'll still leak through. Be sure the retainer insets into the trans the way it comes out. :wink:
Image
Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote.
Ben Franklin

Matt Kirsch
10+ Years
10+ Years
Posts: 4945
Joined: Tue Jun 08, 2004 3:04 pm
Zip Code: 14559
Circle of Safety: Y
Location: Rochester, NY

Re: Transmission input seal

Postby Matt Kirsch » Wed Nov 28, 2012 10:07 am

I did mention that this was a "thought exercise" right?

I got bored last night, so I did this:

Image

Now we play the waiting game... Hopefully the new seal will be here in a couple of days.

BTW, the jack is not the only thing holding up the torque tube. My "pogo stick" splitting stand is bolted on there too, set just a fraction above the floor so if it slipped of the jack, it wouldn't go anywhere.

Jason (IL)
10+ Years
10+ Years
Posts: 916
Joined: Sun Feb 02, 2003 10:44 pm
Zip Code: 60936
Tractors Owned: 47 Cub SN 8664
48 Cub
50 Demo
54 Cub
3-55 Cub
2-56 Cub
55 LOBOY SN 876
57 LOBOY
58 French Cub
2- 60 LOBOY
69 Cub
54 Super M
42 H
48 H
57 300LP
57 450
Cub Cadet 123
Cub Cadet 149
Circle of Safety: Y
Location: Gibson City, IL
Contact:

Re: Transmission input seal

Postby Jason (IL) » Wed Nov 28, 2012 11:32 am

It wouldn't be much more work to do the bearings now if they need it. I wish I did when I split my loboy down. Been kicking myself ever since.

User avatar
Boss Hog
Cub Pro
Cub Pro
Posts: 10290
Joined: Mon Oct 24, 2005 8:35 pm
Zip Code: 23962
eBay ID: dmb2613
Circle of Safety: Y
Location: VA. Randolph

Re: Transmission input seal

Postby Boss Hog » Wed Nov 28, 2012 12:07 pm

Take a wire brush to the shaft, one on a grinder works best to get the rust off , coat the shaft with oil. When you go to put the seal in most likely it is goping to be too small and will be a loose fit. lightly center punch a few places in the retainer, glue the seal in being carefull not to get any on the rubber. when you replace the 3 bolts use a flat washer under each one that will hold the seal in.
Boss
IN GOD WE TRUST
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg

Matt Kirsch
10+ Years
10+ Years
Posts: 4945
Joined: Tue Jun 08, 2004 3:04 pm
Zip Code: 14559
Circle of Safety: Y
Location: Rochester, NY

Re: Transmission input seal

Postby Matt Kirsch » Wed Nov 28, 2012 12:40 pm

How do you get the old seal out of the retainer? It appears that the retainer completely encases the seal on both sides, and the seal needs to be cut out, destroying the retainer in the process.

User avatar
Boss Hog
Cub Pro
Cub Pro
Posts: 10290
Joined: Mon Oct 24, 2005 8:35 pm
Zip Code: 23962
eBay ID: dmb2613
Circle of Safety: Y
Location: VA. Randolph

Re: Transmission input seal

Postby Boss Hog » Wed Nov 28, 2012 12:58 pm

drive it out from the back side
IN GOD WE TRUST
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg

Matt Kirsch
10+ Years
10+ Years
Posts: 4945
Joined: Tue Jun 08, 2004 3:04 pm
Zip Code: 14559
Circle of Safety: Y
Location: Rochester, NY

Re: Transmission input seal

Postby Matt Kirsch » Wed Nov 28, 2012 4:25 pm

Really? I don't see a seam on the front side of the seal retainer. I looked real close, under good light. It appears to be one solid piece of metal.


Return to “Farmall Cub”

Who is online

Users browsing this forum: tst and 27 guests