Differential oil leak
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Wilbur
Topic author - Posts: 11
- Joined: Sun Jan 06, 2019 5:15 pm
- First Name: Wilbur
- Last Name: Swearingin
- * REQUIRED* Type and Year of Model Ts owned: 1923 Runabout 1923 Coupe 1924 Tudor 1926 Pickup
- Location: Mt. Vernon, MO
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Differential oil leak
Just finished rebuilding Ruckstell axel. Assembled using Ultra Black as a sealer between the two halves. Finished and installed in car. Now I have a nasty oil leak at the bottom of the housing from where the two halves join. I can see it oozing about an inch or so along the bottom of the housing. What can I use to seal this up?
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John.Zibell
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Re: Differential oil leak
Only good way I know for sure is to open it up again. A new sealer is designed for gear oil that might be better than Ultra black for this application. Something like this. https://shop.advanceautoparts.com/p/per ... /7740016-P
1926 Tudor
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Mark Gregush
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Re: Differential oil leak
Permatex No 2. Did you use a gasket?
I know the voices aren't real but damn they have some good ideas! 
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
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Bill Robinson
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Re: Differential oil leak
Read this. The sealant John Z posted WORKS.
http://www.mtfca.com/discus/messages/82 ... 1542303309
http://www.mtfca.com/discus/messages/82 ... 1542303309
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DanTreace
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Re: Differential oil leak
Had same leak. Wiped the area well with lacquer thinner and dried.
Then ran bead of black silicone sealer over the area there and leak was stopped
Then ran bead of black silicone sealer over the area there and leak was stopped
The best way is always the simplest. The attics of the world are cluttered up with complicated failures. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
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Joss
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Re: Differential oil leak
Agree. Wipe with lacquer thinner and seal with black sealant. Not the best but every other fix requires taking halves apart that I am aware.
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Oldav8tor
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Re: Differential oil leak
Funny thing - ultra black used to be good for that sort of thing....it's not like we use a gear oil with fancy additives and the like. I just sealed my pumpkin yesterday with the gear oil sealant - haven't put any oil in it yet. I'll be interested to see how well it works.
1917 Touring
1946 Aeronca Champ
1952 Willys M38a1 Jeep (sold 2023)
1953 Ford Jubilee Tractor
1946 Aeronca Champ
1952 Willys M38a1 Jeep (sold 2023)
1953 Ford Jubilee Tractor
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Wilbur
Topic author - Posts: 11
- Joined: Sun Jan 06, 2019 5:15 pm
- First Name: Wilbur
- Last Name: Swearingin
- * REQUIRED* Type and Year of Model Ts owned: 1923 Runabout 1923 Coupe 1924 Tudor 1926 Pickup
- Location: Mt. Vernon, MO
- MTFCA Number: 24971
- MTFCI Number: 20989
Re: Differential oil leak
Have had to work until today. Took John’s advice and used the Permatex Gear Oil RTV. Was able to push a small Shem in the one inch space that leaked then covered with the Gear Oil RTV. No more leak!
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Tim Moore
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Re: Differential oil leak
This doesn't sound right to me if you were able to place a "shim" (?) 1" long between the halves and seal the outside of it. One side has a ridge and the other has a recess and they should fit together tight. From what I read, the halves are not engaged together properly. If this is true one half could be distorted from some type of damage and no longer round. Smearing gasket sealer on the outside might stop the leak for a while but will not fix the engagement of the halves. I can't see it and can only comment on what I read and based on that it doesn't sound like it is assembled correctly. It could just be a little nick on the ridge that a file could knock off and let them seat together.
I have rebuilt 2 Ruckstells and many other rear assemblies and never had one leak in the center. The two halves should go together completely with the paper gasket and a little sealer with no gaps or leaks. A "top coat" of permatex does not sound like a repair, the sealing should be in the seating joint and not the outside.
Tim Moore
I have rebuilt 2 Ruckstells and many other rear assemblies and never had one leak in the center. The two halves should go together completely with the paper gasket and a little sealer with no gaps or leaks. A "top coat" of permatex does not sound like a repair, the sealing should be in the seating joint and not the outside.
Tim Moore