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Rear Axle Housing Leak
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- 5+ Years
- Posts: 12
- Joined: Sat Sep 20, 2014 6:05 am
- Zip Code: 60560
Rear Axle Housing Leak
So, I am a newer cub owner. A year ago, I removed the oil pans under the rear axle, cleaned up the connecting surface areas, replaced the gaskets, put permatex above and below it, and reassembled them, and filled them with gear lube. It developed seeps/leaks after a month or so. After barely using it over the season, here I am a year later with two leaking rear axles. My question is this, do these areas notoriously leak on a cub? Is this a normal problem that I just need to get over? Someone suggested I remove the gasket and just put in permatex. However if this is a normal issue, I think I will just leave it and top it off from time to time. Opinions observations or suggestions? Thank you.
- Sailor
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- Tractors Owned: 1948 Farmall Cub
Ser.# 16812
1938 Farmall F-14
Ser# 131806 - Circle of Safety: Y
- Location: KY, Morgantown
Re: Rear Axle Housing Leak
Scomcgr wrote: A year ago, I removed the oil pans under the rear axle, cleaned up the connecting surface areas, replaced the gaskets, put permatex above and below it, and reassembled them, and filled them with gear lube. It developed seeps/leaks after a month or so. After barely using it over the season, here I am a year later with two leaking rear axles. Opinions observations or suggestions? Thank you.
I think you are talking about the pans under the finials, right?
These do not leak "as a general rule". They leak because there isn't a good seal between the two parts. Take the pans off and have a look at them where the bolts go threw. A lot of times these holes will become misshapen because the bolts have been overtighten at some time. Take a hammer/big punch and make sure this area of the pans is good and flat.
Check your service manual for torque values of these bolts... 20 lbs I think but don't quote me on this figure. If you haven't done so already, both the Owner's Manual and the Service Manual can be downloaded form this site for free. Good luck.
1948 Cub
Cub-22 Mower
Cub-54 Leveling & Grading Blade
Cub-144 Cultivator
Cub-189 Moldboard Plow (direct-Connected, One Bottom, Two-way)
Woods 59 Mower
Cub-22 Mower
Cub-54 Leveling & Grading Blade
Cub-144 Cultivator
Cub-189 Moldboard Plow (direct-Connected, One Bottom, Two-way)
Woods 59 Mower
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Re: Rear Axle Housing Leak
Are you sure the leak is from the pan gaskets? A leaky axle seal can let oil run down to the pan looking like a pan leak.
Also, filling the housings clear to the filler plug (as spec'ed in the manual) leaves oil constantly against the gaskets. Leaving the level low (just below the gaskets) reduces leakage and still has enough oil so the bull gear will circulate it. You can use a piece of wire as a dip stick to check the level.
Also, filling the housings clear to the filler plug (as spec'ed in the manual) leaves oil constantly against the gaskets. Leaving the level low (just below the gaskets) reduces leakage and still has enough oil so the bull gear will circulate it. You can use a piece of wire as a dip stick to check the level.
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- 5+ Years
- Posts: 12
- Joined: Sat Sep 20, 2014 6:05 am
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Re: Rear Axle Housing Leak
Great questions. Correct, the pans themselves do not leak. The leak is definitely coming from the area of the gasket/permatex. In otherwords, the space between the bottom of the rear axle and the pan. I am not sure if it is also coming from the axle itself. I am glad to know that filling below the filler plug and leaving it below the line is an option. I went by the book when I filled it. Thanks guys.
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